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1 | #!/usr/bin/env python3 | |
2 | # SPDX-License-Identifier: LGPL-2.1+ | |
3 | # | |
4 | # networkd integration test | |
5 | # This uses temporary configuration in /run and temporary veth devices, and | |
6 | # does not write anything on disk or change any system configuration; | |
7 | # but it assumes (and checks at the beginning) that networkd is not currently | |
8 | # running. | |
9 | # | |
10 | # This can be run on a normal installation, in QEMU, nspawn (with | |
11 | # --private-network), LXD (with "--config raw.lxc=lxc.aa_profile=unconfined"), | |
12 | # or LXC system containers. You need at least the "ip" tool from the iproute | |
13 | # package; it is recommended to install dnsmasq too to get full test coverage. | |
14 | # | |
15 | # ATTENTION: This uses the *installed* networkd, not the one from the built | |
16 | # source tree. | |
17 | # | |
18 | # © 2015 Canonical Ltd. | |
19 | # Author: Martin Pitt <martin.pitt@ubuntu.com> | |
20 | ||
21 | import errno | |
22 | import os | |
23 | import shutil | |
24 | import socket | |
25 | import subprocess | |
26 | import sys | |
27 | import tempfile | |
28 | import time | |
29 | import unittest | |
30 | ||
31 | HAVE_DNSMASQ = shutil.which('dnsmasq') is not None | |
32 | IS_CONTAINER = subprocess.call(['systemd-detect-virt', '--quiet', '--container']) == 0 | |
33 | ||
34 | NETWORK_UNITDIR = '/run/systemd/network' | |
35 | ||
36 | NETWORKD_WAIT_ONLINE = shutil.which('systemd-networkd-wait-online', | |
37 | path='/usr/lib/systemd:/lib/systemd') | |
38 | ||
39 | RESOLV_CONF = '/run/systemd/resolve/resolv.conf' | |
40 | ||
41 | tmpmounts = [] | |
42 | running_units = [] | |
43 | stopped_units = [] | |
44 | ||
45 | ||
46 | def setUpModule(): | |
47 | global tmpmounts | |
48 | ||
49 | """Initialize the environment, and perform sanity checks on it.""" | |
50 | if NETWORKD_WAIT_ONLINE is None: | |
51 | raise OSError(errno.ENOENT, 'systemd-networkd-wait-online not found') | |
52 | ||
53 | # Do not run any tests if the system is using networkd already and it's not virtualized | |
54 | if (subprocess.call(['systemctl', 'is-active', '--quiet', 'systemd-networkd.service']) == 0 and | |
55 | subprocess.call(['systemd-detect-virt', '--quiet']) != 0): | |
56 | raise unittest.SkipTest('not virtualized and networkd is already active') | |
57 | ||
58 | # Ensure we don't mess with an existing networkd config | |
59 | for u in ['systemd-networkd.socket', 'systemd-networkd', 'systemd-resolved']: | |
60 | if subprocess.call(['systemctl', 'is-active', '--quiet', u]) == 0: | |
61 | subprocess.call(['systemctl', 'stop', u]) | |
62 | running_units.append(u) | |
63 | else: | |
64 | stopped_units.append(u) | |
65 | ||
66 | # create static systemd-network user for networkd-test-router.service (it | |
67 | # needs to do some stuff as root and can't start as user; but networkd | |
68 | # still insists on the user) | |
69 | subprocess.call(['adduser', '--system', '--no-create-home', 'systemd-network']) | |
70 | ||
71 | for d in ['/etc/systemd/network', '/run/systemd/network', | |
72 | '/run/systemd/netif', '/run/systemd/resolve']: | |
73 | if os.path.isdir(d): | |
74 | subprocess.check_call(["mount", "-t", "tmpfs", "none", d]) | |
75 | tmpmounts.append(d) | |
76 | if os.path.isdir('/run/systemd/resolve'): | |
77 | os.chmod('/run/systemd/resolve', 0o755) | |
78 | shutil.chown('/run/systemd/resolve', 'systemd-resolve', 'systemd-resolve') | |
79 | if os.path.isdir('/run/systemd/netif'): | |
80 | os.chmod('/run/systemd/netif', 0o755) | |
81 | shutil.chown('/run/systemd/netif', 'systemd-network', 'systemd-network') | |
82 | ||
83 | # Avoid "Failed to open /dev/tty" errors in containers. | |
84 | os.environ['SYSTEMD_LOG_TARGET'] = 'journal' | |
85 | ||
86 | # Ensure the unit directory exists so tests can dump files into it. | |
87 | os.makedirs(NETWORK_UNITDIR, exist_ok=True) | |
88 | ||
89 | ||
90 | def tearDownModule(): | |
91 | global tmpmounts | |
92 | for d in tmpmounts: | |
93 | subprocess.check_call(["umount", d]) | |
94 | for u in stopped_units: | |
95 | subprocess.call(["systemctl", "stop", u]) | |
96 | for u in running_units: | |
97 | subprocess.call(["systemctl", "restart", u]) | |
98 | ||
99 | ||
100 | class NetworkdTestingUtilities: | |
101 | """Provide a set of utility functions to facilitate networkd tests. | |
102 | ||
103 | This class must be inherited along with unittest.TestCase to define | |
104 | some required methods. | |
105 | """ | |
106 | ||
107 | def add_veth_pair(self, veth, peer, veth_options=(), peer_options=()): | |
108 | """Add a veth interface pair, and queue them to be removed.""" | |
109 | subprocess.check_call(['ip', 'link', 'add', 'name', veth] + | |
110 | list(veth_options) + | |
111 | ['type', 'veth', 'peer', 'name', peer] + | |
112 | list(peer_options)) | |
113 | self.addCleanup(subprocess.call, ['ip', 'link', 'del', 'dev', peer]) | |
114 | ||
115 | def write_config(self, path, contents): | |
116 | """"Write a configuration file, and queue it to be removed.""" | |
117 | ||
118 | with open(path, 'w') as f: | |
119 | f.write(contents) | |
120 | ||
121 | self.addCleanup(os.remove, path) | |
122 | ||
123 | def write_network(self, unit_name, contents): | |
124 | """Write a network unit file, and queue it to be removed.""" | |
125 | self.write_config(os.path.join(NETWORK_UNITDIR, unit_name), contents) | |
126 | ||
127 | def write_network_dropin(self, unit_name, dropin_name, contents): | |
128 | """Write a network unit drop-in, and queue it to be removed.""" | |
129 | dropin_dir = os.path.join(NETWORK_UNITDIR, "{}.d".format(unit_name)) | |
130 | dropin_path = os.path.join(dropin_dir, "{}.conf".format(dropin_name)) | |
131 | ||
132 | os.makedirs(dropin_dir, exist_ok=True) | |
133 | self.addCleanup(os.rmdir, dropin_dir) | |
134 | with open(dropin_path, 'w') as dropin: | |
135 | dropin.write(contents) | |
136 | self.addCleanup(os.remove, dropin_path) | |
137 | ||
138 | def read_attr(self, link, attribute): | |
139 | """Read a link attributed from the sysfs.""" | |
140 | # Note we we don't want to check if interface `link' is managed, we | |
141 | # want to evaluate link variable and pass the value of the link to | |
142 | # assert_link_states e.g. eth0=managed. | |
143 | self.assert_link_states(**{link:'managed'}) | |
144 | with open(os.path.join('/sys/class/net', link, attribute)) as f: | |
145 | return f.readline().strip() | |
146 | ||
147 | def assert_link_states(self, **kwargs): | |
148 | """Match networkctl link states to the given ones. | |
149 | ||
150 | Each keyword argument should be the name of a network interface | |
151 | with its expected value of the "SETUP" column in output from | |
152 | networkctl. The interfaces have five seconds to come online | |
153 | before the check is performed. Every specified interface must | |
154 | be present in the output, and any other interfaces found in the | |
155 | output are ignored. | |
156 | ||
157 | A special interface state "managed" is supported, which matches | |
158 | any value in the "SETUP" column other than "unmanaged". | |
159 | """ | |
160 | if not kwargs: | |
161 | return | |
162 | interfaces = set(kwargs) | |
163 | ||
164 | # Wait for the requested interfaces, but don't fail for them. | |
165 | subprocess.call([NETWORKD_WAIT_ONLINE, '--timeout=5'] + | |
166 | ['--interface={}'.format(iface) for iface in kwargs]) | |
167 | ||
168 | # Validate each link state found in the networkctl output. | |
169 | out = subprocess.check_output(['networkctl', '--no-legend']).rstrip() | |
170 | for line in out.decode('utf-8').split('\n'): | |
171 | fields = line.split() | |
172 | if len(fields) >= 5 and fields[1] in kwargs: | |
173 | iface = fields[1] | |
174 | expected = kwargs[iface] | |
175 | actual = fields[-1] | |
176 | if (actual != expected and | |
177 | not (expected == 'managed' and actual != 'unmanaged')): | |
178 | self.fail("Link {} expects state {}, found {}".format(iface, expected, actual)) | |
179 | interfaces.remove(iface) | |
180 | ||
181 | # Ensure that all requested interfaces have been covered. | |
182 | if interfaces: | |
183 | self.fail("Missing links in status output: {}".format(interfaces)) | |
184 | ||
185 | ||
186 | class BridgeTest(NetworkdTestingUtilities, unittest.TestCase): | |
187 | """Provide common methods for testing networkd against servers.""" | |
188 | ||
189 | def setUp(self): | |
190 | self.write_network('port1.netdev', '''\ | |
191 | [NetDev] | |
192 | Name=port1 | |
193 | Kind=dummy | |
194 | MACAddress=12:34:56:78:9a:bc''') | |
195 | self.write_network('port2.netdev', '''\ | |
196 | [NetDev] | |
197 | Name=port2 | |
198 | Kind=dummy | |
199 | MACAddress=12:34:56:78:9a:bd''') | |
200 | self.write_network('mybridge.netdev', '''\ | |
201 | [NetDev] | |
202 | Name=mybridge | |
203 | Kind=bridge''') | |
204 | self.write_network('port1.network', '''\ | |
205 | [Match] | |
206 | Name=port1 | |
207 | [Network] | |
208 | Bridge=mybridge''') | |
209 | self.write_network('port2.network', '''\ | |
210 | [Match] | |
211 | Name=port2 | |
212 | [Network] | |
213 | Bridge=mybridge''') | |
214 | self.write_network('mybridge.network', '''\ | |
215 | [Match] | |
216 | Name=mybridge | |
217 | [Network] | |
218 | DNS=192.168.250.1 | |
219 | Address=192.168.250.33/24 | |
220 | Gateway=192.168.250.1''') | |
221 | subprocess.call(['systemctl', 'reset-failed', 'systemd-networkd', 'systemd-resolved']) | |
222 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
223 | ||
224 | def tearDown(self): | |
225 | subprocess.check_call(['systemctl', 'stop', 'systemd-networkd']) | |
226 | subprocess.check_call(['ip', 'link', 'del', 'mybridge']) | |
227 | subprocess.check_call(['ip', 'link', 'del', 'port1']) | |
228 | subprocess.check_call(['ip', 'link', 'del', 'port2']) | |
229 | ||
230 | def test_bridge_init(self): | |
231 | self.assert_link_states( | |
232 | port1='managed', | |
233 | port2='managed', | |
234 | mybridge='managed') | |
235 | ||
236 | def test_bridge_port_priority(self): | |
237 | self.assertEqual(self.read_attr('port1', 'brport/priority'), '32') | |
238 | self.write_network_dropin('port1.network', 'priority', '''\ | |
239 | [Bridge] | |
240 | Priority=28 | |
241 | ''') | |
242 | subprocess.check_call(['systemctl', 'restart', 'systemd-networkd']) | |
243 | self.assertEqual(self.read_attr('port1', 'brport/priority'), '28') | |
244 | ||
245 | def test_bridge_port_priority_set_zero(self): | |
246 | """It should be possible to set the bridge port priority to 0""" | |
247 | self.assertEqual(self.read_attr('port2', 'brport/priority'), '32') | |
248 | self.write_network_dropin('port2.network', 'priority', '''\ | |
249 | [Bridge] | |
250 | Priority=0 | |
251 | ''') | |
252 | subprocess.check_call(['systemctl', 'restart', 'systemd-networkd']) | |
253 | self.assertEqual(self.read_attr('port2', 'brport/priority'), '0') | |
254 | ||
255 | def test_bridge_port_property(self): | |
256 | """Test the "[Bridge]" section keys""" | |
257 | self.assertEqual(self.read_attr('port2', 'brport/priority'), '32') | |
258 | self.write_network_dropin('port2.network', 'property', '''\ | |
259 | [Bridge] | |
260 | UnicastFlood=true | |
261 | HairPin=true | |
262 | UseBPDU=true | |
263 | FastLeave=true | |
264 | AllowPortToBeRoot=true | |
265 | Cost=555 | |
266 | Priority=23 | |
267 | ''') | |
268 | subprocess.check_call(['systemctl', 'restart', 'systemd-networkd']) | |
269 | ||
270 | self.assertEqual(self.read_attr('port2', 'brport/priority'), '23') | |
271 | self.assertEqual(self.read_attr('port2', 'brport/hairpin_mode'), '1') | |
272 | self.assertEqual(self.read_attr('port2', 'brport/path_cost'), '555') | |
273 | self.assertEqual(self.read_attr('port2', 'brport/multicast_fast_leave'), '1') | |
274 | self.assertEqual(self.read_attr('port2', 'brport/unicast_flood'), '1') | |
275 | self.assertEqual(self.read_attr('port2', 'brport/bpdu_guard'), '1') | |
276 | self.assertEqual(self.read_attr('port2', 'brport/root_block'), '1') | |
277 | ||
278 | class ClientTestBase(NetworkdTestingUtilities): | |
279 | """Provide common methods for testing networkd against servers.""" | |
280 | ||
281 | @classmethod | |
282 | def setUpClass(klass): | |
283 | klass.orig_log_level = subprocess.check_output( | |
284 | ['systemctl', 'show', '--value', '--property', 'LogLevel'], | |
285 | universal_newlines=True).strip() | |
286 | subprocess.check_call(['systemd-analyze', 'log-level', 'debug']) | |
287 | ||
288 | @classmethod | |
289 | def tearDownClass(klass): | |
290 | subprocess.check_call(['systemd-analyze', 'log-level', klass.orig_log_level]) | |
291 | ||
292 | def setUp(self): | |
293 | self.iface = 'test_eth42' | |
294 | self.if_router = 'router_eth42' | |
295 | self.workdir_obj = tempfile.TemporaryDirectory() | |
296 | self.workdir = self.workdir_obj.name | |
297 | self.config = 'test_eth42.network' | |
298 | ||
299 | # get current journal cursor | |
300 | subprocess.check_output(['journalctl', '--sync']) | |
301 | out = subprocess.check_output(['journalctl', '-b', '--quiet', | |
302 | '--no-pager', '-n0', '--show-cursor'], | |
303 | universal_newlines=True) | |
304 | self.assertTrue(out.startswith('-- cursor:')) | |
305 | self.journal_cursor = out.split()[-1] | |
306 | ||
307 | subprocess.call(['systemctl', 'reset-failed', 'systemd-networkd', 'systemd-resolved']) | |
308 | ||
309 | def tearDown(self): | |
310 | self.shutdown_iface() | |
311 | subprocess.call(['systemctl', 'stop', 'systemd-networkd']) | |
312 | subprocess.call(['ip', 'link', 'del', 'dummy0'], | |
313 | stderr=subprocess.DEVNULL) | |
314 | ||
315 | def show_journal(self, unit): | |
316 | '''Show journal of given unit since start of the test''' | |
317 | ||
318 | print('---- {} ----'.format(unit)) | |
319 | subprocess.check_output(['journalctl', '--sync']) | |
320 | sys.stdout.flush() | |
321 | subprocess.call(['journalctl', '-b', '--no-pager', '--quiet', | |
322 | '--cursor', self.journal_cursor, '-u', unit]) | |
323 | ||
324 | def create_iface(self, ipv6=False): | |
325 | '''Create test interface with DHCP server behind it''' | |
326 | ||
327 | raise NotImplementedError('must be implemented by a subclass') | |
328 | ||
329 | def shutdown_iface(self): | |
330 | '''Remove test interface and stop DHCP server''' | |
331 | ||
332 | raise NotImplementedError('must be implemented by a subclass') | |
333 | ||
334 | def print_server_log(self): | |
335 | '''Print DHCP server log for debugging failures''' | |
336 | ||
337 | raise NotImplementedError('must be implemented by a subclass') | |
338 | ||
339 | def start_unit(self, unit): | |
340 | try: | |
341 | subprocess.check_call(['systemctl', 'start', unit]) | |
342 | except subprocess.CalledProcessError: | |
343 | self.show_journal(unit) | |
344 | raise | |
345 | ||
346 | def do_test(self, coldplug=True, ipv6=False, extra_opts='', | |
347 | online_timeout=10, dhcp_mode='yes'): | |
348 | self.start_unit('systemd-resolved') | |
349 | self.write_network(self.config, '''\ | |
350 | [Match] | |
351 | Name={} | |
352 | [Network] | |
353 | DHCP={} | |
354 | {}'''.format(self.iface, dhcp_mode, extra_opts)) | |
355 | ||
356 | if coldplug: | |
357 | # create interface first, then start networkd | |
358 | self.create_iface(ipv6=ipv6) | |
359 | self.start_unit('systemd-networkd') | |
360 | elif coldplug is not None: | |
361 | # start networkd first, then create interface | |
362 | self.start_unit('systemd-networkd') | |
363 | self.create_iface(ipv6=ipv6) | |
364 | else: | |
365 | # "None" means test sets up interface by itself | |
366 | self.start_unit('systemd-networkd') | |
367 | ||
368 | try: | |
369 | subprocess.check_call([NETWORKD_WAIT_ONLINE, '--interface', | |
370 | self.iface, '--timeout=%i' % online_timeout]) | |
371 | ||
372 | if ipv6: | |
373 | # check iface state and IP 6 address; FIXME: we need to wait a bit | |
374 | # longer, as the iface is "configured" already with IPv4 *or* | |
375 | # IPv6, but we want to wait for both | |
376 | for _ in range(10): | |
377 | out = subprocess.check_output(['ip', 'a', 'show', 'dev', self.iface]) | |
378 | if b'state UP' in out and b'inet6 2600' in out and b'inet 192.168' in out: | |
379 | break | |
380 | time.sleep(1) | |
381 | else: | |
382 | self.fail('timed out waiting for IPv6 configuration') | |
383 | ||
384 | self.assertRegex(out, b'inet6 2600::.* scope global .*dynamic') | |
385 | self.assertRegex(out, b'inet6 fe80::.* scope link') | |
386 | else: | |
387 | # should have link-local address on IPv6 only | |
388 | out = subprocess.check_output(['ip', '-6', 'a', 'show', 'dev', self.iface]) | |
389 | self.assertRegex(out, br'inet6 fe80::.* scope link') | |
390 | self.assertNotIn(b'scope global', out) | |
391 | ||
392 | # should have IPv4 address | |
393 | out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface]) | |
394 | self.assertIn(b'state UP', out) | |
395 | self.assertRegex(out, br'inet 192.168.5.\d+/.* scope global dynamic') | |
396 | ||
397 | # check networkctl state | |
398 | out = subprocess.check_output(['networkctl']) | |
399 | self.assertRegex(out, (r'{}\s+ether\s+[a-z-]+\s+unmanaged'.format(self.if_router)).encode()) | |
400 | self.assertRegex(out, (r'{}\s+ether\s+routable\s+configured'.format(self.iface)).encode()) | |
401 | ||
402 | out = subprocess.check_output(['networkctl', 'status', self.iface]) | |
403 | self.assertRegex(out, br'Type:\s+ether') | |
404 | self.assertRegex(out, br'State:\s+routable.*configured') | |
405 | self.assertRegex(out, br'Address:\s+192.168.5.\d+') | |
406 | if ipv6: | |
407 | self.assertRegex(out, br'2600::') | |
408 | else: | |
409 | self.assertNotIn(br'2600::', out) | |
410 | self.assertRegex(out, br'fe80::') | |
411 | self.assertRegex(out, br'Gateway:\s+192.168.5.1') | |
412 | self.assertRegex(out, br'DNS:\s+192.168.5.1') | |
413 | except (AssertionError, subprocess.CalledProcessError): | |
414 | # show networkd status, journal, and DHCP server log on failure | |
415 | with open(os.path.join(NETWORK_UNITDIR, self.config)) as f: | |
416 | print('\n---- {} ----\n{}'.format(self.config, f.read())) | |
417 | print('---- interface status ----') | |
418 | sys.stdout.flush() | |
419 | subprocess.call(['ip', 'a', 'show', 'dev', self.iface]) | |
420 | print('---- networkctl status {} ----'.format(self.iface)) | |
421 | sys.stdout.flush() | |
422 | subprocess.call(['networkctl', 'status', self.iface]) | |
423 | self.show_journal('systemd-networkd.service') | |
424 | self.print_server_log() | |
425 | raise | |
426 | ||
427 | for timeout in range(50): | |
428 | with open(RESOLV_CONF) as f: | |
429 | contents = f.read() | |
430 | if 'nameserver 192.168.5.1\n' in contents: | |
431 | break | |
432 | time.sleep(0.1) | |
433 | else: | |
434 | self.fail('nameserver 192.168.5.1 not found in ' + RESOLV_CONF) | |
435 | ||
436 | if coldplug is False: | |
437 | # check post-down.d hook | |
438 | self.shutdown_iface() | |
439 | ||
440 | def test_coldplug_dhcp_yes_ip4(self): | |
441 | # we have a 12s timeout on RA, so we need to wait longer | |
442 | self.do_test(coldplug=True, ipv6=False, online_timeout=15) | |
443 | ||
444 | def test_coldplug_dhcp_yes_ip4_no_ra(self): | |
445 | # with disabling RA explicitly things should be fast | |
446 | self.do_test(coldplug=True, ipv6=False, | |
447 | extra_opts='IPv6AcceptRA=False') | |
448 | ||
449 | def test_coldplug_dhcp_ip4_only(self): | |
450 | # we have a 12s timeout on RA, so we need to wait longer | |
451 | self.do_test(coldplug=True, ipv6=False, dhcp_mode='ipv4', | |
452 | online_timeout=15) | |
453 | ||
454 | def test_coldplug_dhcp_ip4_only_no_ra(self): | |
455 | # with disabling RA explicitly things should be fast | |
456 | self.do_test(coldplug=True, ipv6=False, dhcp_mode='ipv4', | |
457 | extra_opts='IPv6AcceptRA=False') | |
458 | ||
459 | def test_coldplug_dhcp_ip6(self): | |
460 | self.do_test(coldplug=True, ipv6=True) | |
461 | ||
462 | def test_hotplug_dhcp_ip4(self): | |
463 | # With IPv4 only we have a 12s timeout on RA, so we need to wait longer | |
464 | self.do_test(coldplug=False, ipv6=False, online_timeout=15) | |
465 | ||
466 | def test_hotplug_dhcp_ip6(self): | |
467 | self.do_test(coldplug=False, ipv6=True) | |
468 | ||
469 | def test_route_only_dns(self): | |
470 | self.write_network('myvpn.netdev', '''\ | |
471 | [NetDev] | |
472 | Name=dummy0 | |
473 | Kind=dummy | |
474 | MACAddress=12:34:56:78:9a:bc''') | |
475 | self.write_network('myvpn.network', '''\ | |
476 | [Match] | |
477 | Name=dummy0 | |
478 | [Network] | |
479 | Address=192.168.42.100/24 | |
480 | DNS=192.168.42.1 | |
481 | Domains= ~company''') | |
482 | ||
483 | try: | |
484 | self.do_test(coldplug=True, ipv6=False, | |
485 | extra_opts='IPv6AcceptRouterAdvertisements=False') | |
486 | except subprocess.CalledProcessError as e: | |
487 | # networkd often fails to start in LXC: https://github.com/systemd/systemd/issues/11848 | |
488 | if IS_CONTAINER and e.cmd == ['systemctl', 'start', 'systemd-networkd']: | |
489 | raise unittest.SkipTest('https://github.com/systemd/systemd/issues/11848') | |
490 | else: | |
491 | raise | |
492 | ||
493 | with open(RESOLV_CONF) as f: | |
494 | contents = f.read() | |
495 | # ~company is not a search domain, only a routing domain | |
496 | self.assertNotRegex(contents, 'search.*company') | |
497 | # our global server should appear | |
498 | self.assertIn('nameserver 192.168.5.1\n', contents) | |
499 | # should not have domain-restricted server as global server | |
500 | self.assertNotIn('nameserver 192.168.42.1\n', contents) | |
501 | ||
502 | def test_route_only_dns_all_domains(self): | |
503 | self.write_network('myvpn.netdev', '''[NetDev] | |
504 | Name=dummy0 | |
505 | Kind=dummy | |
506 | MACAddress=12:34:56:78:9a:bc''') | |
507 | self.write_network('myvpn.network', '''[Match] | |
508 | Name=dummy0 | |
509 | [Network] | |
510 | Address=192.168.42.100/24 | |
511 | DNS=192.168.42.1 | |
512 | Domains= ~company ~.''') | |
513 | ||
514 | try: | |
515 | self.do_test(coldplug=True, ipv6=False, | |
516 | extra_opts='IPv6AcceptRouterAdvertisements=False') | |
517 | except subprocess.CalledProcessError as e: | |
518 | # networkd often fails to start in LXC: https://github.com/systemd/systemd/issues/11848 | |
519 | if IS_CONTAINER and e.cmd == ['systemctl', 'start', 'systemd-networkd']: | |
520 | raise unittest.SkipTest('https://github.com/systemd/systemd/issues/11848') | |
521 | else: | |
522 | raise | |
523 | ||
524 | with open(RESOLV_CONF) as f: | |
525 | contents = f.read() | |
526 | ||
527 | # ~company is not a search domain, only a routing domain | |
528 | self.assertNotRegex(contents, 'search.*company') | |
529 | ||
530 | # our global server should appear | |
531 | self.assertIn('nameserver 192.168.5.1\n', contents) | |
532 | # should have company server as global server due to ~. | |
533 | self.assertIn('nameserver 192.168.42.1\n', contents) | |
534 | ||
535 | ||
536 | @unittest.skipUnless(HAVE_DNSMASQ, 'dnsmasq not installed') | |
537 | class DnsmasqClientTest(ClientTestBase, unittest.TestCase): | |
538 | '''Test networkd client against dnsmasq''' | |
539 | ||
540 | def setUp(self): | |
541 | super().setUp() | |
542 | self.dnsmasq = None | |
543 | self.iface_mac = 'de:ad:be:ef:47:11' | |
544 | ||
545 | def create_iface(self, ipv6=False, dnsmasq_opts=None): | |
546 | '''Create test interface with DHCP server behind it''' | |
547 | ||
548 | # add veth pair | |
549 | subprocess.check_call(['ip', 'link', 'add', 'name', self.iface, | |
550 | 'address', self.iface_mac, | |
551 | 'type', 'veth', 'peer', 'name', self.if_router]) | |
552 | ||
553 | # give our router an IP | |
554 | subprocess.check_call(['ip', 'a', 'flush', 'dev', self.if_router]) | |
555 | subprocess.check_call(['ip', 'a', 'add', '192.168.5.1/24', 'dev', self.if_router]) | |
556 | if ipv6: | |
557 | subprocess.check_call(['ip', 'a', 'add', '2600::1/64', 'dev', self.if_router]) | |
558 | subprocess.check_call(['ip', 'link', 'set', self.if_router, 'up']) | |
559 | ||
560 | # add DHCP server | |
561 | self.dnsmasq_log = os.path.join(self.workdir, 'dnsmasq.log') | |
562 | lease_file = os.path.join(self.workdir, 'dnsmasq.leases') | |
563 | if ipv6: | |
564 | extra_opts = ['--enable-ra', '--dhcp-range=2600::10,2600::20'] | |
565 | else: | |
566 | extra_opts = [] | |
567 | if dnsmasq_opts: | |
568 | extra_opts += dnsmasq_opts | |
569 | self.dnsmasq = subprocess.Popen( | |
570 | ['dnsmasq', '--keep-in-foreground', '--log-queries', | |
571 | '--log-facility=' + self.dnsmasq_log, '--conf-file=/dev/null', | |
572 | '--dhcp-leasefile=' + lease_file, '--bind-interfaces', | |
573 | '--interface=' + self.if_router, '--except-interface=lo', | |
574 | '--dhcp-range=192.168.5.10,192.168.5.200'] + extra_opts) | |
575 | ||
576 | def shutdown_iface(self): | |
577 | '''Remove test interface and stop DHCP server''' | |
578 | ||
579 | if self.if_router: | |
580 | subprocess.check_call(['ip', 'link', 'del', 'dev', self.if_router]) | |
581 | self.if_router = None | |
582 | if self.dnsmasq: | |
583 | self.dnsmasq.kill() | |
584 | self.dnsmasq.wait() | |
585 | self.dnsmasq = None | |
586 | ||
587 | def print_server_log(self): | |
588 | '''Print DHCP server log for debugging failures''' | |
589 | ||
590 | with open(self.dnsmasq_log) as f: | |
591 | sys.stdout.write('\n\n---- dnsmasq log ----\n{}\n------\n\n'.format(f.read())) | |
592 | ||
593 | def test_resolved_domain_restricted_dns(self): | |
594 | '''resolved: domain-restricted DNS servers''' | |
595 | ||
596 | # FIXME: resolvectl query fails with enabled DNSSEC against our dnsmasq | |
597 | conf = '/run/systemd/resolved.conf.d/test-disable-dnssec.conf' | |
598 | os.makedirs(os.path.dirname(conf), exist_ok=True) | |
599 | with open(conf, 'w') as f: | |
600 | f.write('[Resolve]\nDNSSEC=no\n') | |
601 | self.addCleanup(os.remove, conf) | |
602 | ||
603 | # create interface for generic connections; this will map all DNS names | |
604 | # to 192.168.42.1 | |
605 | self.create_iface(dnsmasq_opts=['--address=/#/192.168.42.1']) | |
606 | self.write_network('general.network', '''\ | |
607 | [Match] | |
608 | Name={} | |
609 | [Network] | |
610 | DHCP=ipv4 | |
611 | IPv6AcceptRA=False'''.format(self.iface)) | |
612 | ||
613 | # create second device/dnsmasq for a .company/.lab VPN interface | |
614 | # static IPs for simplicity | |
615 | self.add_veth_pair('testvpnclient', 'testvpnrouter') | |
616 | subprocess.check_call(['ip', 'a', 'flush', 'dev', 'testvpnrouter']) | |
617 | subprocess.check_call(['ip', 'a', 'add', '10.241.3.1/24', 'dev', 'testvpnrouter']) | |
618 | subprocess.check_call(['ip', 'link', 'set', 'testvpnrouter', 'up']) | |
619 | ||
620 | vpn_dnsmasq_log = os.path.join(self.workdir, 'dnsmasq-vpn.log') | |
621 | vpn_dnsmasq = subprocess.Popen( | |
622 | ['dnsmasq', '--keep-in-foreground', '--log-queries', | |
623 | '--log-facility=' + vpn_dnsmasq_log, '--conf-file=/dev/null', | |
624 | '--dhcp-leasefile=/dev/null', '--bind-interfaces', | |
625 | '--interface=testvpnrouter', '--except-interface=lo', | |
626 | '--address=/math.lab/10.241.3.3', '--address=/cantina.company/10.241.4.4']) | |
627 | self.addCleanup(vpn_dnsmasq.wait) | |
628 | self.addCleanup(vpn_dnsmasq.kill) | |
629 | ||
630 | self.write_network('vpn.network', '''\ | |
631 | [Match] | |
632 | Name=testvpnclient | |
633 | [Network] | |
634 | IPv6AcceptRA=False | |
635 | Address=10.241.3.2/24 | |
636 | DNS=10.241.3.1 | |
637 | Domains= ~company ~lab''') | |
638 | ||
639 | self.start_unit('systemd-networkd') | |
640 | subprocess.check_call([NETWORKD_WAIT_ONLINE, '--interface', self.iface, | |
641 | '--interface=testvpnclient', '--timeout=20']) | |
642 | ||
643 | # ensure we start fresh with every test | |
644 | subprocess.check_call(['systemctl', 'restart', 'systemd-resolved']) | |
645 | ||
646 | # test vpnclient specific domains; these should *not* be answered by | |
647 | # the general DNS | |
648 | out = subprocess.check_output(['resolvectl', 'query', 'math.lab']) | |
649 | self.assertIn(b'math.lab: 10.241.3.3', out) | |
650 | out = subprocess.check_output(['resolvectl', 'query', 'kettle.cantina.company']) | |
651 | self.assertIn(b'kettle.cantina.company: 10.241.4.4', out) | |
652 | ||
653 | # test general domains | |
654 | out = subprocess.check_output(['resolvectl', 'query', 'megasearch.net']) | |
655 | self.assertIn(b'megasearch.net: 192.168.42.1', out) | |
656 | ||
657 | with open(self.dnsmasq_log) as f: | |
658 | general_log = f.read() | |
659 | with open(vpn_dnsmasq_log) as f: | |
660 | vpn_log = f.read() | |
661 | ||
662 | # VPN domains should only be sent to VPN DNS | |
663 | self.assertRegex(vpn_log, 'query.*math.lab') | |
664 | self.assertRegex(vpn_log, 'query.*cantina.company') | |
665 | self.assertNotIn('.lab', general_log) | |
666 | self.assertNotIn('.company', general_log) | |
667 | ||
668 | # general domains should not be sent to the VPN DNS | |
669 | self.assertRegex(general_log, 'query.*megasearch.net') | |
670 | self.assertNotIn('megasearch.net', vpn_log) | |
671 | ||
672 | def test_resolved_etc_hosts(self): | |
673 | '''resolved queries to /etc/hosts''' | |
674 | ||
675 | # FIXME: -t MX query fails with enabled DNSSEC (even when using | |
676 | # the known negative trust anchor .internal instead of .example.com) | |
677 | conf = '/run/systemd/resolved.conf.d/test-disable-dnssec.conf' | |
678 | os.makedirs(os.path.dirname(conf), exist_ok=True) | |
679 | with open(conf, 'w') as f: | |
680 | f.write('[Resolve]\nDNSSEC=no\nLLMNR=no\nMulticastDNS=no\n') | |
681 | self.addCleanup(os.remove, conf) | |
682 | ||
683 | # create /etc/hosts bind mount which resolves my.example.com for IPv4 | |
684 | hosts = os.path.join(self.workdir, 'hosts') | |
685 | with open(hosts, 'w') as f: | |
686 | f.write('172.16.99.99 my.example.com\n') | |
687 | subprocess.check_call(['mount', '--bind', hosts, '/etc/hosts']) | |
688 | self.addCleanup(subprocess.call, ['umount', '/etc/hosts']) | |
689 | subprocess.check_call(['systemctl', 'stop', 'systemd-resolved.service']) | |
690 | ||
691 | # note: different IPv4 address here, so that it's easy to tell apart | |
692 | # what resolved the query | |
693 | self.create_iface(dnsmasq_opts=['--host-record=my.example.com,172.16.99.1,2600::99:99', | |
694 | '--host-record=other.example.com,172.16.0.42,2600::42', | |
695 | '--mx-host=example.com,mail.example.com'], | |
696 | ipv6=True) | |
697 | self.do_test(coldplug=None, ipv6=True) | |
698 | ||
699 | try: | |
700 | # family specific queries | |
701 | out = subprocess.check_output(['resolvectl', 'query', '-4', 'my.example.com']) | |
702 | self.assertIn(b'my.example.com: 172.16.99.99', out) | |
703 | # we don't expect an IPv6 answer; if /etc/hosts has any IP address, | |
704 | # it's considered a sufficient source | |
705 | self.assertNotEqual(subprocess.call(['resolvectl', 'query', '-6', 'my.example.com']), 0) | |
706 | # "any family" query; IPv4 should come from /etc/hosts | |
707 | out = subprocess.check_output(['resolvectl', 'query', 'my.example.com']) | |
708 | self.assertIn(b'my.example.com: 172.16.99.99', out) | |
709 | # IP → name lookup; again, takes the /etc/hosts one | |
710 | out = subprocess.check_output(['resolvectl', 'query', '172.16.99.99']) | |
711 | self.assertIn(b'172.16.99.99: my.example.com', out) | |
712 | ||
713 | # non-address RRs should fall back to DNS | |
714 | out = subprocess.check_output(['resolvectl', 'query', '--type=MX', 'example.com']) | |
715 | self.assertIn(b'example.com IN MX 1 mail.example.com', out) | |
716 | ||
717 | # other domains query DNS | |
718 | out = subprocess.check_output(['resolvectl', 'query', 'other.example.com']) | |
719 | self.assertIn(b'172.16.0.42', out) | |
720 | out = subprocess.check_output(['resolvectl', 'query', '172.16.0.42']) | |
721 | self.assertIn(b'172.16.0.42: other.example.com', out) | |
722 | except (AssertionError, subprocess.CalledProcessError): | |
723 | self.show_journal('systemd-resolved.service') | |
724 | self.print_server_log() | |
725 | raise | |
726 | ||
727 | def test_transient_hostname(self): | |
728 | '''networkd sets transient hostname from DHCP''' | |
729 | ||
730 | orig_hostname = socket.gethostname() | |
731 | self.addCleanup(socket.sethostname, orig_hostname) | |
732 | # temporarily move /etc/hostname away; restart hostnamed to pick it up | |
733 | if os.path.exists('/etc/hostname'): | |
734 | subprocess.check_call(['mount', '--bind', '/dev/null', '/etc/hostname']) | |
735 | self.addCleanup(subprocess.call, ['umount', '/etc/hostname']) | |
736 | subprocess.check_call(['systemctl', 'stop', 'systemd-hostnamed.service']) | |
737 | self.addCleanup(subprocess.call, ['systemctl', 'stop', 'systemd-hostnamed.service']) | |
738 | ||
739 | self.create_iface(dnsmasq_opts=['--dhcp-host={},192.168.5.210,testgreen'.format(self.iface_mac)]) | |
740 | self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=False', dhcp_mode='ipv4') | |
741 | ||
742 | try: | |
743 | # should have received the fixed IP above | |
744 | out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface]) | |
745 | self.assertRegex(out, b'inet 192.168.5.210/24 .* scope global dynamic') | |
746 | # should have set transient hostname in hostnamed; this is | |
747 | # sometimes a bit lagging (issue #4753), so retry a few times | |
748 | for retry in range(1, 6): | |
749 | out = subprocess.check_output(['hostnamectl']) | |
750 | if b'testgreen' in out: | |
751 | break | |
752 | time.sleep(5) | |
753 | sys.stdout.write('[retry %i] ' % retry) | |
754 | sys.stdout.flush() | |
755 | else: | |
756 | self.fail('Transient hostname not found in hostnamectl:\n{}'.format(out.decode())) | |
757 | # and also applied to the system | |
758 | self.assertEqual(socket.gethostname(), 'testgreen') | |
759 | except AssertionError: | |
760 | self.show_journal('systemd-networkd.service') | |
761 | self.show_journal('systemd-hostnamed.service') | |
762 | self.print_server_log() | |
763 | raise | |
764 | ||
765 | def test_transient_hostname_with_static(self): | |
766 | '''transient hostname is not applied if static hostname exists''' | |
767 | ||
768 | orig_hostname = socket.gethostname() | |
769 | self.addCleanup(socket.sethostname, orig_hostname) | |
770 | ||
771 | if not os.path.exists('/etc/hostname'): | |
772 | self.write_config('/etc/hostname', "foobarqux") | |
773 | else: | |
774 | self.write_config('/run/hostname.tmp', "foobarqux") | |
775 | subprocess.check_call(['mount', '--bind', '/run/hostname.tmp', '/etc/hostname']) | |
776 | self.addCleanup(subprocess.call, ['umount', '/etc/hostname']) | |
777 | ||
778 | socket.sethostname("foobarqux"); | |
779 | ||
780 | subprocess.check_call(['systemctl', 'stop', 'systemd-hostnamed.service']) | |
781 | self.addCleanup(subprocess.call, ['systemctl', 'stop', 'systemd-hostnamed.service']) | |
782 | ||
783 | self.create_iface(dnsmasq_opts=['--dhcp-host={},192.168.5.210,testgreen'.format(self.iface_mac)]) | |
784 | self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=False', dhcp_mode='ipv4') | |
785 | ||
786 | try: | |
787 | # should have received the fixed IP above | |
788 | out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface]) | |
789 | self.assertRegex(out, b'inet 192.168.5.210/24 .* scope global dynamic') | |
790 | # static hostname wins over transient one, thus *not* applied | |
791 | self.assertEqual(socket.gethostname(), "foobarqux") | |
792 | except AssertionError: | |
793 | self.show_journal('systemd-networkd.service') | |
794 | self.show_journal('systemd-hostnamed.service') | |
795 | self.print_server_log() | |
796 | raise | |
797 | ||
798 | ||
799 | class NetworkdClientTest(ClientTestBase, unittest.TestCase): | |
800 | '''Test networkd client against networkd server''' | |
801 | ||
802 | def setUp(self): | |
803 | super().setUp() | |
804 | self.dnsmasq = None | |
805 | ||
806 | def create_iface(self, ipv6=False, dhcpserver_opts=None): | |
807 | '''Create test interface with DHCP server behind it''' | |
808 | ||
809 | # run "router-side" networkd in own mount namespace to shield it from | |
810 | # "client-side" configuration and networkd | |
811 | (fd, script) = tempfile.mkstemp(prefix='networkd-router.sh') | |
812 | self.addCleanup(os.remove, script) | |
813 | with os.fdopen(fd, 'w+') as f: | |
814 | f.write('''\ | |
815 | #!/bin/sh | |
816 | set -eu | |
817 | mkdir -p /run/systemd/network | |
818 | mkdir -p /run/systemd/netif | |
819 | mount -t tmpfs none /run/systemd/network | |
820 | mount -t tmpfs none /run/systemd/netif | |
821 | [ ! -e /run/dbus ] || mount -t tmpfs none /run/dbus | |
822 | # create router/client veth pair | |
823 | cat << EOF > /run/systemd/network/test.netdev | |
824 | [NetDev] | |
825 | Name=%(ifr)s | |
826 | Kind=veth | |
827 | ||
828 | [Peer] | |
829 | Name=%(ifc)s | |
830 | EOF | |
831 | ||
832 | cat << EOF > /run/systemd/network/test.network | |
833 | [Match] | |
834 | Name=%(ifr)s | |
835 | ||
836 | [Network] | |
837 | Address=192.168.5.1/24 | |
838 | %(addr6)s | |
839 | DHCPServer=yes | |
840 | ||
841 | [DHCPServer] | |
842 | PoolOffset=10 | |
843 | PoolSize=50 | |
844 | DNS=192.168.5.1 | |
845 | %(dhopts)s | |
846 | EOF | |
847 | ||
848 | # run networkd as in systemd-networkd.service | |
849 | exec $(systemctl cat systemd-networkd.service | sed -n '/^ExecStart=/ { s/^.*=//; s/^[@+-]//; s/^!*//; p}') | |
850 | ''' % {'ifr': self.if_router, 'ifc': self.iface, 'addr6': ipv6 and 'Address=2600::1/64' or '', | |
851 | 'dhopts': dhcpserver_opts or ''}) | |
852 | ||
853 | os.fchmod(fd, 0o755) | |
854 | ||
855 | subprocess.check_call(['systemd-run', '--unit=networkd-test-router.service', | |
856 | '-p', 'InaccessibleDirectories=-/etc/systemd/network', | |
857 | '-p', 'InaccessibleDirectories=-/run/systemd/network', | |
858 | '-p', 'InaccessibleDirectories=-/run/systemd/netif', | |
859 | '--service-type=notify', script]) | |
860 | ||
861 | # wait until devices got created | |
862 | for _ in range(50): | |
863 | out = subprocess.check_output(['ip', 'a', 'show', 'dev', self.if_router]) | |
864 | if b'state UP' in out and b'scope global' in out: | |
865 | break | |
866 | time.sleep(0.1) | |
867 | ||
868 | def shutdown_iface(self): | |
869 | '''Remove test interface and stop DHCP server''' | |
870 | ||
871 | if self.if_router: | |
872 | subprocess.check_call(['systemctl', 'stop', 'networkd-test-router.service']) | |
873 | # ensure failed transient unit does not stay around | |
874 | subprocess.call(['systemctl', 'reset-failed', 'networkd-test-router.service']) | |
875 | subprocess.call(['ip', 'link', 'del', 'dev', self.if_router]) | |
876 | self.if_router = None | |
877 | ||
878 | def print_server_log(self): | |
879 | '''Print DHCP server log for debugging failures''' | |
880 | ||
881 | self.show_journal('networkd-test-router.service') | |
882 | ||
883 | @unittest.skip('networkd does not have DHCPv6 server support') | |
884 | def test_hotplug_dhcp_ip6(self): | |
885 | pass | |
886 | ||
887 | @unittest.skip('networkd does not have DHCPv6 server support') | |
888 | def test_coldplug_dhcp_ip6(self): | |
889 | pass | |
890 | ||
891 | def test_search_domains(self): | |
892 | ||
893 | # we don't use this interface for this test | |
894 | self.if_router = None | |
895 | ||
896 | self.write_network('test.netdev', '''\ | |
897 | [NetDev] | |
898 | Name=dummy0 | |
899 | Kind=dummy | |
900 | MACAddress=12:34:56:78:9a:bc''') | |
901 | self.write_network('test.network', '''\ | |
902 | [Match] | |
903 | Name=dummy0 | |
904 | [Network] | |
905 | Address=192.168.42.100/24 | |
906 | DNS=192.168.42.1 | |
907 | Domains= one two three four five six seven eight nine ten''') | |
908 | ||
909 | self.start_unit('systemd-networkd') | |
910 | ||
911 | for timeout in range(50): | |
912 | with open(RESOLV_CONF) as f: | |
913 | contents = f.read() | |
914 | if ' one' in contents: | |
915 | break | |
916 | time.sleep(0.1) | |
917 | self.assertRegex(contents, 'search .*one two three four') | |
918 | self.assertNotIn('seven\n', contents) | |
919 | self.assertIn('# Too many search domains configured, remaining ones ignored.\n', contents) | |
920 | ||
921 | def test_search_domains_too_long(self): | |
922 | ||
923 | # we don't use this interface for this test | |
924 | self.if_router = None | |
925 | ||
926 | name_prefix = 'a' * 60 | |
927 | ||
928 | self.write_network('test.netdev', '''\ | |
929 | [NetDev] | |
930 | Name=dummy0 | |
931 | Kind=dummy | |
932 | MACAddress=12:34:56:78:9a:bc''') | |
933 | self.write_network('test.network', '''\ | |
934 | [Match] | |
935 | Name=dummy0 | |
936 | [Network] | |
937 | Address=192.168.42.100/24 | |
938 | DNS=192.168.42.1 | |
939 | Domains={p}0 {p}1 {p}2 {p}3 {p}4'''.format(p=name_prefix)) | |
940 | ||
941 | self.start_unit('systemd-networkd') | |
942 | ||
943 | for timeout in range(50): | |
944 | with open(RESOLV_CONF) as f: | |
945 | contents = f.read() | |
946 | if ' one' in contents: | |
947 | break | |
948 | time.sleep(0.1) | |
949 | self.assertRegex(contents, 'search .*{p}0 {p}1 {p}2'.format(p=name_prefix)) | |
950 | self.assertIn('# Total length of all search domains is too long, remaining ones ignored.', contents) | |
951 | ||
952 | def test_dropin(self): | |
953 | # we don't use this interface for this test | |
954 | self.if_router = None | |
955 | ||
956 | self.write_network('test.netdev', '''\ | |
957 | [NetDev] | |
958 | Name=dummy0 | |
959 | Kind=dummy | |
960 | MACAddress=12:34:56:78:9a:bc''') | |
961 | self.write_network('test.network', '''\ | |
962 | [Match] | |
963 | Name=dummy0 | |
964 | [Network] | |
965 | Address=192.168.42.100/24 | |
966 | DNS=192.168.42.1''') | |
967 | self.write_network_dropin('test.network', 'dns', '''\ | |
968 | [Network] | |
969 | DNS=127.0.0.1''') | |
970 | ||
971 | self.start_unit('systemd-resolved') | |
972 | self.start_unit('systemd-networkd') | |
973 | ||
974 | for timeout in range(50): | |
975 | with open(RESOLV_CONF) as f: | |
976 | contents = f.read() | |
977 | if ' 127.0.0.1' in contents and '192.168.42.1' in contents: | |
978 | break | |
979 | time.sleep(0.1) | |
980 | self.assertIn('nameserver 192.168.42.1\n', contents) | |
981 | self.assertIn('nameserver 127.0.0.1\n', contents) | |
982 | ||
983 | def test_dhcp_timezone(self): | |
984 | '''networkd sets time zone from DHCP''' | |
985 | ||
986 | def get_tz(): | |
987 | out = subprocess.check_output(['busctl', 'get-property', 'org.freedesktop.timedate1', | |
988 | '/org/freedesktop/timedate1', 'org.freedesktop.timedate1', 'Timezone']) | |
989 | assert out.startswith(b's "') | |
990 | out = out.strip() | |
991 | assert out.endswith(b'"') | |
992 | return out[3:-1].decode() | |
993 | ||
994 | orig_timezone = get_tz() | |
995 | self.addCleanup(subprocess.call, ['timedatectl', 'set-timezone', orig_timezone]) | |
996 | ||
997 | self.create_iface(dhcpserver_opts='EmitTimezone=yes\nTimezone=Pacific/Honolulu') | |
998 | self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=false\n[DHCP]\nUseTimezone=true', dhcp_mode='ipv4') | |
999 | ||
1000 | # should have applied the received timezone | |
1001 | try: | |
1002 | self.assertEqual(get_tz(), 'Pacific/Honolulu') | |
1003 | except AssertionError: | |
1004 | self.show_journal('systemd-networkd.service') | |
1005 | self.show_journal('systemd-hostnamed.service') | |
1006 | raise | |
1007 | ||
1008 | ||
1009 | class MatchClientTest(unittest.TestCase, NetworkdTestingUtilities): | |
1010 | """Test [Match] sections in .network files. | |
1011 | ||
1012 | Be aware that matching the test host's interfaces will wipe their | |
1013 | configuration, so as a precaution, all network files should have a | |
1014 | restrictive [Match] section to only ever interfere with the | |
1015 | temporary veth interfaces created here. | |
1016 | """ | |
1017 | ||
1018 | def tearDown(self): | |
1019 | """Stop networkd.""" | |
1020 | subprocess.call(['systemctl', 'stop', 'systemd-networkd']) | |
1021 | ||
1022 | def test_basic_matching(self): | |
1023 | """Verify the Name= line works throughout this class.""" | |
1024 | self.add_veth_pair('test_if1', 'fake_if2') | |
1025 | self.write_network('test.network', "[Match]\nName=test_*\n[Network]") | |
1026 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
1027 | self.assert_link_states(test_if1='managed', fake_if2='unmanaged') | |
1028 | ||
1029 | def test_inverted_matching(self): | |
1030 | """Verify that a '!'-prefixed value inverts the match.""" | |
1031 | # Use a MAC address as the interfaces' common matching attribute | |
1032 | # to avoid depending on udev, to support testing in containers. | |
1033 | mac = '00:01:02:03:98:99' | |
1034 | self.add_veth_pair('test_veth', 'test_peer', | |
1035 | ['addr', mac], ['addr', mac]) | |
1036 | self.write_network('no-veth.network', """\ | |
1037 | [Match] | |
1038 | MACAddress={} | |
1039 | Name=!nonexistent *peer* | |
1040 | [Network]""".format(mac)) | |
1041 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
1042 | self.assert_link_states(test_veth='managed', test_peer='unmanaged') | |
1043 | ||
1044 | ||
1045 | class UnmanagedClientTest(unittest.TestCase, NetworkdTestingUtilities): | |
1046 | """Test if networkd manages the correct interfaces.""" | |
1047 | ||
1048 | def setUp(self): | |
1049 | """Write .network files to match the named veth devices.""" | |
1050 | # Define the veth+peer pairs to be created. | |
1051 | # Their pairing doesn't actually matter, only their names do. | |
1052 | self.veths = { | |
1053 | 'm1def': 'm0unm', | |
1054 | 'm1man': 'm1unm', | |
1055 | } | |
1056 | ||
1057 | # Define the contents of .network files to be read in order. | |
1058 | self.configs = ( | |
1059 | "[Match]\nName=m1def\n", | |
1060 | "[Match]\nName=m1unm\n[Link]\nUnmanaged=yes\n", | |
1061 | "[Match]\nName=m1*\n[Link]\nUnmanaged=no\n", | |
1062 | ) | |
1063 | ||
1064 | # Write out the .network files to be cleaned up automatically. | |
1065 | for i, config in enumerate(self.configs): | |
1066 | self.write_network("%02d-test.network" % i, config) | |
1067 | ||
1068 | def tearDown(self): | |
1069 | """Stop networkd.""" | |
1070 | subprocess.call(['systemctl', 'stop', 'systemd-networkd']) | |
1071 | ||
1072 | def create_iface(self): | |
1073 | """Create temporary veth pairs for interface matching.""" | |
1074 | for veth, peer in self.veths.items(): | |
1075 | self.add_veth_pair(veth, peer) | |
1076 | ||
1077 | def test_unmanaged_setting(self): | |
1078 | """Verify link states with Unmanaged= settings, hot-plug.""" | |
1079 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
1080 | self.create_iface() | |
1081 | self.assert_link_states(m1def='managed', | |
1082 | m1man='managed', | |
1083 | m1unm='unmanaged', | |
1084 | m0unm='unmanaged') | |
1085 | ||
1086 | def test_unmanaged_setting_coldplug(self): | |
1087 | """Verify link states with Unmanaged= settings, cold-plug.""" | |
1088 | self.create_iface() | |
1089 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
1090 | self.assert_link_states(m1def='managed', | |
1091 | m1man='managed', | |
1092 | m1unm='unmanaged', | |
1093 | m0unm='unmanaged') | |
1094 | ||
1095 | def test_catchall_config(self): | |
1096 | """Verify link states with a catch-all config, hot-plug.""" | |
1097 | # Don't actually catch ALL interfaces. It messes up the host. | |
1098 | self.write_network('all.network', "[Match]\nName=m[01]???\n") | |
1099 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
1100 | self.create_iface() | |
1101 | self.assert_link_states(m1def='managed', | |
1102 | m1man='managed', | |
1103 | m1unm='unmanaged', | |
1104 | m0unm='managed') | |
1105 | ||
1106 | def test_catchall_config_coldplug(self): | |
1107 | """Verify link states with a catch-all config, cold-plug.""" | |
1108 | # Don't actually catch ALL interfaces. It messes up the host. | |
1109 | self.write_network('all.network', "[Match]\nName=m[01]???\n") | |
1110 | self.create_iface() | |
1111 | subprocess.check_call(['systemctl', 'start', 'systemd-networkd']) | |
1112 | self.assert_link_states(m1def='managed', | |
1113 | m1man='managed', | |
1114 | m1unm='unmanaged', | |
1115 | m0unm='managed') | |
1116 | ||
1117 | ||
1118 | if __name__ == '__main__': | |
1119 | unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, | |
1120 | verbosity=2)) |