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test_service_ssh.py
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test_service_ssh.py
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#!/usr/bin/env python3
#
# Copyright (C) 2019-2020 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import re
import os
import unittest
from vyos.configsession import ConfigSession
from vyos.configsession import ConfigSessionError
from vyos.util import read_file
from vyos.util import process_named_running
PROCESS_NAME = 'sshd'
SSHD_CONF = '/run/ssh/sshd_config'
base_path = ['service', 'ssh']
def get_config_value(key):
tmp = read_file(SSHD_CONF)
tmp = re.findall(f'\n?{key}\s+(.*)', tmp)
return tmp
class TestServiceSSH(unittest.TestCase):
def setUp(self):
self.session = ConfigSession(os.getpid())
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
self.session.delete(base_path)
def tearDown(self):
# delete testing SSH config
self.session.delete(base_path)
# restore "plain" SSH access
self.session.set(base_path)
self.session.commit()
del self.session
def test_ssh_default(self):
""" Check if SSH service runs with default settings - used for checking
behavior of <defaultValue> in XML definition """
self.session.set(base_path)
# commit changes
self.session.commit()
# Check configured port
port = get_config_value('Port')[0]
self.assertEqual('22', port)
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
def test_ssh_single(self):
""" Check if SSH service can be configured and runs """
self.session.set(base_path + ['port', '1234'])
self.session.set(base_path + ['disable-host-validation'])
self.session.set(base_path + ['disable-password-authentication'])
self.session.set(base_path + ['loglevel', 'verbose'])
self.session.set(base_path + ['client-keepalive-interval', '100'])
self.session.set(base_path + ['listen-address', '127.0.0.1'])
# commit changes
self.session.commit()
# Check configured port
port = get_config_value('Port')[0]
self.assertTrue("1234" in port)
# Check DNS usage
dns = get_config_value('UseDNS')[0]
self.assertTrue("no" in dns)
# Check PasswordAuthentication
pwd = get_config_value('PasswordAuthentication')[0]
self.assertTrue("no" in pwd)
# Check loglevel
loglevel = get_config_value('LogLevel')[0]
self.assertTrue("VERBOSE" in loglevel)
# Check listen address
address = get_config_value('ListenAddress')[0]
self.assertTrue("127.0.0.1" in address)
# Check keepalive
keepalive = get_config_value('ClientAliveInterval')[0]
self.assertTrue("100" in keepalive)
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
def test_ssh_multi(self):
""" Check if SSH service can be configured and runs with multiple
listen ports and listen-addresses """
ports = ['22', '2222']
for port in ports:
self.session.set(base_path + ['port', port])
addresses = ['127.0.0.1', '::1']
for address in addresses:
self.session.set(base_path + ['listen-address', address])
# commit changes
self.session.commit()
# Check configured port
tmp = get_config_value('Port')
for port in ports:
self.assertIn(port, tmp)
# Check listen address
tmp = get_config_value('ListenAddress')
for address in addresses:
self.assertIn(address, tmp)
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
if __name__ == '__main__':
unittest.main()

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