bind9/bin/tests/system/optout/tests_optout.py
Michal Nowak c41f63c82d Remove redundant Python 3.7 skip markers from system tests
The test framework already requires Python 3.10+ (conftest.py raises
RuntimeError if version < 3.10), so skipif(sys.version_info < (3, 7))
can never trigger. Remove the dead markers and now-unused sys imports.

Assisted-by: Claude:claude-opus-4-7
2026-06-01 19:37:22 +02:00

134 lines
3.5 KiB
Python
Executable file

#!/usr/bin/python3
# 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.
import os
import re
import dns.query
import dns.rcode
import dns.zone
import pytest
import isctest
pytestmark = [
pytest.mark.extra_artifacts(
[
"*.out",
"ns2/*.infile",
"ns2/*.signed",
"ns2/*.jnl",
"ns2/*.jbk",
"ns2/dsset-*",
"ns2/K*",
]
),
]
def has_nsec3param(zone, response):
match = rf"{re.escape(zone)}\.\s+\d+\s+IN\s+NSEC3PARAM\s+1\s+0\s+0\s+-"
for rr in response.answer:
if re.search(match, rr.to_text()):
return True
return False
def do_query(server, qname, qtype, tcp=False):
msg = isctest.query.create(qname, qtype)
query_func = isctest.query.tcp if tcp else isctest.query.udp
response = query_func(msg, server.ip, expected_rcode=dns.rcode.NOERROR)
return response
def do_xfr(server, qname):
xfr = dns.zone.Zone(origin=f"{qname}.", relativize=False)
dns.query.inbound_xfr(
where=server.ip, txn_manager=xfr, port=int(os.environ["PORT"])
)
return xfr
def verify_zone(zone, transfer):
verify = os.getenv("VERIFY")
assert verify is not None
filename = f"{zone}.out"
with open(filename, "w", encoding="utf-8") as file:
file.write(transfer.to_text())
# dnssec-verify command with default arguments.
verify_cmd = [verify, "-z", "-o", zone, filename]
verifier = isctest.run.cmd(verify_cmd)
if verifier.rc != 0:
isctest.log.error(f"dnssec-verify {zone} failed")
return verifier.rc == 0
def test_optout(ns2):
zone = "test"
expect_nsec3param = True
# Wait until the provided zone is signed and then verify its DNSSEC data.
def check_nsec3param():
response = do_query(ns2, zone, "NSEC3PARAM")
if expect_nsec3param:
return has_nsec3param(zone, response)
return not has_nsec3param(zone, response)
# check zone is fully signed.
isctest.run.retry_with_timeout(check_nsec3param, timeout=100)
# check if zone if DNSSEC valid.
transfer = do_xfr(ns2, zone)
assert verify_zone(zone, transfer)
def test_optout_to_nsec(ns2, templates):
zone = "small.test"
expect_nsec3param = True
# Wait until the provided zone is signed and then verify its DNSSEC data.
def check_nsec3param():
response = do_query(ns2, zone, "NSEC3PARAM")
if expect_nsec3param:
return has_nsec3param(zone, response)
return not has_nsec3param(zone, response)
# check zone is fully signed.
isctest.run.retry_with_timeout(check_nsec3param, timeout=100)
# check if zone if DNSSEC valid.
transfer = do_xfr(ns2, zone)
assert verify_zone(zone, transfer)
# reconfigure to NSEC.
data = {
"reconfiged": True,
}
templates.render(f"{ns2.identifier}/named.conf", data)
ns2.reconfigure()
# wait until NSEC3PARAM is removed.
expect_nsec3param = False
isctest.run.retry_with_timeout(check_nsec3param, timeout=100)
# check if zone if DNSSEC valid.
transfer = do_xfr(ns2, zone)
assert verify_zone(zone, transfer)