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#!/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 pathlib
import subprocess
import pytest
def is_pid_alive(pid):
try:
os.kill(pid, 0)
return True
except OSError:
return False
def run_sslyze_in_a_loop(executable, port, log_file_prefix):
# Determine the PID of ns1.
with open(pathlib.Path("ns1", "named.pid"), encoding="utf-8") as pidfile:
pid = int(pidfile.read())
# Ensure ns1 is alive before starting the loop below to avoid reporting
# false positives.
if not is_pid_alive(pid):
pytest.skip(f"ns1 (PID: {pid}) is not running")
# Run sslyze on ns1 in a loop with a limit of 30 iterations. Interrupt the
# test as soon as ns1 is determined to not be running any more. Log sslyze
# output.
sslyze_args = [executable, f"10.53.0.1:{port}"]
for i in range(0, 30):
log_file = f"{log_file_prefix}.ns1.{port}.{i + 1}"
with open(log_file, "wb") as sslyze_log:
# Run sslyze, logging stdout+stderr. Ignore the exit code since
# sslyze is only used for triggering crashes here rather than
# actual TLS analysis.
subprocess.run(
sslyze_args,
stdout=sslyze_log,
stderr=subprocess.STDOUT,
timeout=30,
check=False,
)
# Ensure ns1 is still alive after each sslyze run.
assert is_pid_alive(pid), f"ns1 (PID: {pid}) exited prematurely"
def test_sslyze_doh(sslyze_executable, named_httpsport):
run_sslyze_in_a_loop(sslyze_executable, named_httpsport, "sslyze.log.doh")
def test_sslyze_dot(sslyze_executable, named_tlsport):
run_sslyze_in_a_loop(sslyze_executable, named_tlsport, "sslyze.log.dot")
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