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#
# Wireshark tests
# By Gerald Combs <gerald@wireshark.org>
#
# Ported from a set of Bash scripts which were copyright 2005 Ulf Lamping
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
'''Name resolution tests'''
import os.path
import shutil
import subprocess
from subprocesstest import grep_output
import pytest
tf_str = { True: 'TRUE', False: 'FALSE' }
custom_profile_name = 'Custom Profile'
@pytest.fixture
def nameres_setup(program_path, conf_path):
bundle_path = os.path.join(program_path, 'Wireshark.app', 'Contents', 'MacOS')
if os.path.isdir(bundle_path):
# Don't modify our application bundle.
global_path = None
else:
global_path = program_path
custom_profile_path = os.path.join(conf_path, 'profiles', custom_profile_name)
os.makedirs(custom_profile_path)
this_dir = os.path.dirname(__file__)
hosts_path_pfx = os.path.join(this_dir, 'hosts.')
if global_path is not None:
shutil.copyfile(hosts_path_pfx + 'global', os.path.join(global_path, 'hosts'))
shutil.copyfile(hosts_path_pfx + 'personal', os.path.join(conf_path, 'hosts'))
shutil.copyfile(hosts_path_pfx + 'custom', os.path.join(custom_profile_path, 'hosts'))
return global_path is not None
@pytest.fixture
def check_name_resolution(cmd_tshark, capture_file, nameres_setup, test_env):
def check_name_resolution_real(o_net_name, o_external_name_res, custom_profile, grep_str, fail_on_match=False):
if grep_str.startswith('global') and not nameres_setup:
pytest.skip('Global name resolution tests would require modifying the application bundle')
tshark_cmd = (cmd_tshark,
'-r', capture_file('dns+icmp.pcapng.gz'),
'-o', 'nameres.network_name: ' + tf_str[o_net_name],
'-o', 'nameres.use_external_name_resolver: ' + tf_str[o_external_name_res],
)
if custom_profile:
tshark_cmd += ('-C', custom_profile_name)
proc = subprocess.run(tshark_cmd, check=True, capture_output=True, encoding='utf-8', env=test_env)
if fail_on_match:
assert not grep_output(proc.stdout, grep_str)
else:
assert grep_output(proc.stdout, grep_str)
return check_name_resolution_real
class TestNameResolution:
def test_name_resolution_net_t_ext_f_hosts_f_global(self, check_name_resolution):
'''Name resolution, no external, global profile.'''
# nameres.network_name: True
# nameres.use_external_name_resolver: False
# Profile: Default
check_name_resolution(True, False, False, 'global-8-8-8-8')
def test_name_resolution_net_t_ext_f_hosts_f_personal(self, check_name_resolution):
'''Name resolution, no external, personal profile.'''
# nameres.network_name: True
# nameres.use_external_name_resolver: False
# Profile: Default
check_name_resolution(True, False, False, 'personal-8-8-4-4')
def test_name_resolution_net_t_ext_f_hosts_f_custom(self, check_name_resolution):
'''Name resolution, no external, no profile hosts, custom profile.'''
# nameres.network_name: True
# nameres_use_external_name_resolver: False
# Profile: Custom
check_name_resolution(True, False, True, 'custom-4-2-2-2')
def test_hosts_any(self, cmd_tshark, capture_file):
stdout = subprocess.check_output((cmd_tshark,
'-r', capture_file('dns+icmp.pcapng.gz'),
'-qz', 'hosts',
), encoding='utf-8')
assert '174.137.42.65\twww.wireshark.org' in stdout
assert 'fe80::6233:4bff:fe13:c558\tCrunch.local' in stdout
def test_hosts_ipv4(self, cmd_tshark, capture_file):
stdout = subprocess.check_output((cmd_tshark,
'-r', capture_file('dns+icmp.pcapng.gz'),
'-qz', 'hosts,ipv4',
), encoding='utf-8')
assert '174.137.42.65\twww.wireshark.org' in stdout
assert 'fe80::6233:4bff:fe13:c558\tCrunch.local' not in stdout
def test_hosts_ipv6(self, cmd_tshark, capture_file):
stdout = subprocess.check_output((cmd_tshark,
'-r', capture_file('dns+icmp.pcapng.gz'),
'-qz', 'hosts,ipv6',
), encoding='utf-8')
assert '174.137.42.65\twww.wireshark.org' not in stdout
assert 'fe80::6233:4bff:fe13:c558\tCrunch.local' in stdout
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