mirror of
https://gitlab.isc.org/isc-projects/bind9
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e35e103d7f
Similar to previous commit. Parametrize each test case and in case of manual-mode, execute additional checks. First a keymgr run should not change the existing key state (with exceptions of timing events such as moving from RUMOURED to OMNIPRESENT, and from UNRETENTIVE to HIDDEN). Appropriate messages must be logged. After enforcing the next step with 'rndc dnssec -step', the key state should be the same as if the step were to be taken automatically.
401 lines
15 KiB
Python
401 lines
15 KiB
Python
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# SPDX-License-Identifier: MPL-2.0
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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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# pylint: disable=redefined-outer-name,unused-import
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from datetime import timedelta
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import pytest
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import isctest
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from isctest.kasp import Ipub, Iret
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from isctest.util import param
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from rollover.common import (
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pytestmark,
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alg,
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size,
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TIMEDELTA,
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)
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CDSS = ["CDNSKEY", "CDS (SHA-256)", "CDS (SHA-384)"]
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CONFIG = {
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"dnskey-ttl": TIMEDELTA["PT1H"],
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"ds-ttl": TIMEDELTA["PT1H"],
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"max-zone-ttl": TIMEDELTA["P1D"],
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"parent-propagation-delay": TIMEDELTA["P7D"],
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"publish-safety": TIMEDELTA["PT1H"],
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"purge-keys": TIMEDELTA[0],
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"retire-safety": TIMEDELTA["PT1H"],
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"signatures-refresh": TIMEDELTA["PT12H"],
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"signatures-validity": TIMEDELTA["P1D"],
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"zone-propagation-delay": TIMEDELTA["PT1H"],
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}
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POLICY = "csk-roll2"
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CSK_LIFETIME = timedelta(days=31 * 6)
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LIFETIME_POLICY = int(CSK_LIFETIME.total_seconds())
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IPUB = Ipub(CONFIG)
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IRET = Iret(CONFIG, zsk=True, ksk=True)
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IRETZSK = Iret(CONFIG)
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IRETKSK = Iret(CONFIG, ksk=True)
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KEYTTLPROP = CONFIG["dnskey-ttl"] + CONFIG["zone-propagation-delay"]
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OFFSETS = {}
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OFFSETS["step1-p"] = -int(timedelta(days=7).total_seconds())
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OFFSETS["step2-p"] = -int(CSK_LIFETIME.total_seconds() - IPUB.total_seconds())
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OFFSETS["step2-s"] = 0
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OFFSETS["step3-p"] = -int(CSK_LIFETIME.total_seconds())
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OFFSETS["step3-s"] = -int(IPUB.total_seconds())
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OFFSETS["step4-p"] = OFFSETS["step3-p"] - int(IRETZSK.total_seconds())
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OFFSETS["step4-s"] = OFFSETS["step3-s"] - int(IRETZSK.total_seconds())
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OFFSETS["step5-p"] = OFFSETS["step4-p"] - int(
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IRETKSK.total_seconds() - IRETZSK.total_seconds()
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)
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OFFSETS["step5-s"] = OFFSETS["step4-s"] - int(
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IRETKSK.total_seconds() - IRETZSK.total_seconds()
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)
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OFFSETS["step6-p"] = OFFSETS["step5-p"] - int(KEYTTLPROP.total_seconds())
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OFFSETS["step6-s"] = OFFSETS["step5-s"] - int(KEYTTLPROP.total_seconds())
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OFFSETS["step7-p"] = OFFSETS["step6-p"] - int(timedelta(days=90).total_seconds())
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OFFSETS["step7-s"] = OFFSETS["step6-s"] - int(timedelta(days=90).total_seconds())
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step1(tld, alg, size, ns3):
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zone = f"step1.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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# manual-mode: Nothing changing in the zone, no 'dnssec -step' required.
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# Note that the key was already generated during setup.
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step = {
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# Introduce the first key. This will immediately be active.
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"zone": zone,
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"cdss": CDSS,
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step1-p']}",
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],
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# Next key event is when the successor CSK needs to be published
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# minus time already elapsed. This is Lcsk - Ipub + Dreg (we ignore
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# registration delay).
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"nextev": CSK_LIFETIME - IPUB - TIMEDELTA["P7D"],
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step2(tld, alg, size, ns3):
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zone = f"step2.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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if tld == "manual":
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# Same as step 1.
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step = {
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"zone": zone,
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"cdss": CDSS,
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step2-p']}",
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],
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"manual-mode": True,
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"nextev": None,
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}
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keys = isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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# Check logs.
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tag = keys[0].key.tag
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msg = f"keymgr-manual-mode: block CSK rollover for key {zone}/ECDSAP256SHA256/{tag} (policy {policy})"
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ns3.log.expect(msg)
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# Force step.
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with ns3.watch_log_from_here() as watcher:
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ns3.rndc(f"dnssec -step {zone}")
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watcher.wait_for_line(f"keymgr: {zone} done")
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step = {
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# Successor CSK is prepublished (signs DNSKEY RRset, but not yet
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# other RRsets).
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# CSK1 goal: omnipresent -> hidden
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# CSK2 goal: hidden -> omnipresent
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# CSK2 dnskey: hidden -> rumoured
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# CSK2 krrsig: hidden -> rumoured
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"zone": zone,
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"cdss": CDSS,
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step2-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:rumoured krrsig:rumoured zrrsig:hidden ds:hidden offset:{OFFSETS['step2-s']}",
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],
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"keyrelationships": [0, 1],
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# Next key event is when the successor CSK becomes OMNIPRESENT.
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"nextev": IPUB,
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step3(tld, alg, size, ns3):
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zone = f"step3.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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if tld == "manual":
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# Same as step 2, but DNSKEY has become OMNIPRESENT.
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step = {
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"zone": zone,
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"cdss": CDSS,
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step3-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:hidden ds:hidden offset:{OFFSETS['step3-s']}",
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],
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"keyrelationships": [0, 1],
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"manual-mode": True,
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"nextev": None,
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}
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keys = isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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# Check logs.
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tag = keys[1].key.tag
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msg = f"keymgr-manual-mode: block transition CSK {zone}/ECDSAP256SHA256/{tag} type ZRRSIG state HIDDEN to state RUMOURED"
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ns3.log.expect(msg)
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# Force step.
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with ns3.watch_log_from_here() as watcher:
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ns3.rndc(f"dnssec -step {zone}")
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watcher.wait_for_line(f"keymgr: {zone} done")
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# Check logs.
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tag = keys[0].key.tag
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msg = f"keymgr-manual-mode: block transition CSK {zone}/ECDSAP256SHA256/{tag} type ZRRSIG state OMNIPRESENT to state UNRETENTIVE"
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if msg in ns3.log:
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# Force step.
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isctest.log.debug(
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f"keymgr-manual-mode blocking transition CSK {zone}/ECDSAP256SHA256/{tag} type ZRRSIG state OMNIPRESENT to state UNRETENTIVE, step again"
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)
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with ns3.watch_log_from_here() as watcher:
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ns3.rndc(f"dnssec -step {zone}")
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watcher.wait_for_line(f"keymgr: {zone} done")
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step = {
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# Successor CSK becomes omnipresent, meaning we can start signing
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# the remainder of the zone with the successor CSK, and we can
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# submit the DS.
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"zone": zone,
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"cdss": CDSS,
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# Predecessor CSK will be removed, so moving to UNRETENTIVE.
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# CSK1 zrrsig: omnipresent -> unretentive
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# Successor CSK DNSKEY is OMNIPRESENT, so moving ZRRSIG to RUMOURED.
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# CSK2 dnskey: rumoured -> omnipresent
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# CSK2 krrsig: rumoured -> omnipresent
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# CSK2 zrrsig: hidden -> rumoured
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# The predecessor DS can be withdrawn and the successor DS can be
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# introduced.
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# CSK1 ds: omnipresent -> unretentive
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# CSK2 ds: hidden -> rumoured
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:omnipresent krrsig:omnipresent zrrsig:unretentive ds:unretentive offset:{OFFSETS['step3-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:rumoured ds:rumoured offset:{OFFSETS['step3-s']}",
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],
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"keyrelationships": [0, 1],
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# Next key event is when the predecessor DS has been replaced with
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# the successor DS and enough time has passed such that the all
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# validators that have this DS RRset cached only know about the
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# successor DS. This is the the retire interval.
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"nextev": IRETZSK,
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# Set 'smooth' to true so expected signatures of subdomain are
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# from the predecessor ZSK.
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"smooth": True,
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step4(tld, alg, size, ns3):
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zone = f"step4.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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# manual-mode: Nothing changing in the zone, no 'dnssec -step' required.
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step = {
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"zone": zone,
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"cdss": CDSS,
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# The predecessor ZRRSIG is HIDDEN. The successor ZRRSIG is
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# OMNIPRESENT.
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# CSK1 zrrsig: unretentive -> hidden
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# CSK2 zrrsig: rumoured -> omnipresent
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:omnipresent krrsig:omnipresent zrrsig:hidden ds:unretentive offset:{OFFSETS['step4-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:rumoured offset:{OFFSETS['step4-s']}",
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],
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"keyrelationships": [0, 1],
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# Next key event is when the predecessor DS has been replaced with
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# the successor DS and enough time has passed such that the all
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# validators that have this DS RRset cached only know about the
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# successor DS. This is the retire interval of the KSK part (minus)
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# time already elapsed).
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"nextev": IRET - IRETZSK,
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# We already swapped the DS in the previous step, so disable ds-swap.
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"ds-swap": False,
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step5(tld, alg, size, ns3):
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zone = f"step5.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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if tld == "manual":
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# Same as step 4, but DS has become HIDDEN/OMNIPRESENT.
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step = {
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"zone": zone,
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"cdss": CDSS,
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:omnipresent krrsig:omnipresent zrrsig:hidden ds:hidden offset:{OFFSETS['step5-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step5-s']}",
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],
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"keyrelationships": [0, 1],
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"manual-mode": True,
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"nextev": None,
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}
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keys = isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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# Check logs.
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tag = keys[0].key.tag
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msg1 = f"keymgr-manual-mode: block transition CSK {zone}/ECDSAP256SHA256/{tag} type DNSKEY state OMNIPRESENT to state UNRETENTIVE"
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msg2 = f"keymgr-manual-mode: block transition CSK {zone}/ECDSAP256SHA256/{tag} type KRRSIG state OMNIPRESENT to state UNRETENTIVE"
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ns3.log.expect(msg1)
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ns3.log.expect(msg2)
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# Force step.
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with ns3.watch_log_from_here() as watcher:
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ns3.rndc(f"dnssec -step {zone}")
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watcher.wait_for_line(f"keymgr: {zone} done")
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step = {
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"zone": zone,
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"cdss": CDSS,
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# The predecessor DNSKEY can be removed.
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# CSK1 dnskey: omnipresent -> unretentive
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# CSK1 krrsig: omnipresent -> unretentive
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# CSK1 ds: unretentive -> hidden
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# The successor key is now fully OMNIPRESENT.
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# CSK2 ds: rumoured -> omnipresent
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:unretentive krrsig:unretentive zrrsig:hidden ds:hidden offset:{OFFSETS['step5-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step5-s']}",
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],
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"keyrelationships": [0, 1],
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# Next key event is when the DNSKEY enters the HIDDEN state.
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# This is the DNSKEY TTL plus zone propagation delay.
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"nextev": KEYTTLPROP,
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step6(tld, alg, size, ns3):
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zone = f"step6.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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# manual-mode: Nothing changing in the zone, no 'dnssec -step' required.
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step = {
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"zone": zone,
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"cdss": CDSS,
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# The predecessor CSK is now completely HIDDEN.
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# CSK1 dnskey: unretentive -> hidden
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# CSK1 krrsig: unretentive -> hidden
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:hidden krrsig:hidden zrrsig:hidden ds:hidden offset:{OFFSETS['step6-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step6-s']}",
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],
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"keyrelationships": [0, 1],
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# Next key event is when the new successor needs to be published.
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# This is the Lcsk, minus time passed since the key was published.
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"nextev": CSK_LIFETIME - IRET - IPUB - KEYTTLPROP,
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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@pytest.mark.parametrize(
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"tld",
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[
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param("autosign"),
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param("manual"),
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],
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)
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def test_csk_roll2_step7(tld, alg, size, ns3):
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zone = f"step7.csk-roll2.{tld}"
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policy = f"{POLICY}-{tld}"
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isctest.kasp.wait_keymgr_done(ns3, zone)
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# manual-mode: Nothing changing in the zone, no 'dnssec -step' required.
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step = {
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"zone": zone,
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"cdss": CDSS,
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# The predecessor CSK is now completely HIDDEN.
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"keyprops": [
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f"csk {LIFETIME_POLICY} {alg} {size} goal:hidden dnskey:hidden krrsig:hidden zrrsig:hidden ds:hidden offset:{OFFSETS['step7-p']}",
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f"csk {LIFETIME_POLICY} {alg} {size} goal:omnipresent dnskey:omnipresent krrsig:omnipresent zrrsig:omnipresent ds:omnipresent offset:{OFFSETS['step7-s']}",
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],
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"keyrelationships": [0, 1],
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"nextev": None,
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}
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isctest.kasp.check_rollover_step(ns3, CONFIG, policy, step)
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