]>
git.ipfire.org Git - thirdparty/systemd.git/blob - test/networkd-test.py
3 # networkd integration test
4 # This uses temporary configuration in /run and temporary veth devices, and
5 # does not write anything on disk or change any system configuration;
6 # but it assumes (and checks at the beginning) that networkd is not currently
9 # This can be run on a normal installation, in QEMU, nspawn (with
10 # --private-network), LXD (with "--config raw.lxc=lxc.aa_profile=unconfined"),
11 # or LXC system containers. You need at least the "ip" tool from the iproute
12 # package; it is recommended to install dnsmasq too to get full test coverage.
14 # ATTENTION: This uses the *installed* networkd, not the one from the built
17 # (C) 2015 Canonical Ltd.
18 # Author: Martin Pitt <martin.pitt@ubuntu.com>
20 # systemd is free software; you can redistribute it and/or modify it
21 # under the terms of the GNU Lesser General Public License as published by
22 # the Free Software Foundation; either version 2.1 of the License, or
23 # (at your option) any later version.
25 # systemd is distributed in the hope that it will be useful, but
26 # WITHOUT ANY WARRANTY; without even the implied warranty of
27 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28 # Lesser General Public License for more details.
30 # You should have received a copy of the GNU Lesser General Public License
31 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
43 HAVE_DNSMASQ
= shutil
.which('dnsmasq') is not None
45 NETWORK_UNITDIR
= '/run/systemd/network'
47 NETWORKD_WAIT_ONLINE
= shutil
.which('systemd-networkd-wait-online',
48 path
='/usr/lib/systemd:/lib/systemd')
50 RESOLV_CONF
= '/run/systemd/resolve/resolv.conf'
54 """Initialize the environment, and perform sanity checks on it."""
55 if NETWORKD_WAIT_ONLINE
is None:
56 raise OSError(errno
.ENOENT
, 'systemd-networkd-wait-online not found')
58 # Do not run any tests if the system is using networkd already.
59 if subprocess
.call(['systemctl', 'is-active', '--quiet',
60 'systemd-networkd.service']) == 0:
61 raise unittest
.SkipTest('networkd is already active')
63 # Avoid "Failed to open /dev/tty" errors in containers.
64 os
.environ
['SYSTEMD_LOG_TARGET'] = 'journal'
66 # Ensure the unit directory exists so tests can dump files into it.
67 os
.makedirs(NETWORK_UNITDIR
, exist_ok
=True)
70 class NetworkdTestingUtilities
:
71 """Provide a set of utility functions to facilitate networkd tests.
73 This class must be inherited along with unittest.TestCase to define
74 some required methods.
77 def add_veth_pair(self
, veth
, peer
, veth_options
=(), peer_options
=()):
78 """Add a veth interface pair, and queue them to be removed."""
79 subprocess
.check_call(['ip', 'link', 'add', 'name', veth
] +
81 ['type', 'veth', 'peer', 'name', peer
] +
83 self
.addCleanup(subprocess
.call
, ['ip', 'link', 'del', 'dev', peer
])
85 def write_network(self
, unit_name
, contents
):
86 """Write a network unit file, and queue it to be removed."""
87 unit_path
= os
.path
.join(NETWORK_UNITDIR
, unit_name
)
89 with
open(unit_path
, 'w') as unit
:
91 self
.addCleanup(os
.remove
, unit_path
)
93 def write_network_dropin(self
, unit_name
, dropin_name
, contents
):
94 """Write a network unit drop-in, and queue it to be removed."""
95 dropin_dir
= os
.path
.join(NETWORK_UNITDIR
, "%s.d" % unit_name
)
96 dropin_path
= os
.path
.join(dropin_dir
, "%s.conf" % dropin_name
)
98 os
.makedirs(dropin_dir
, exist_ok
=True)
99 self
.addCleanup(os
.rmdir
, dropin_dir
)
100 with
open(dropin_path
, 'w') as dropin
:
101 dropin
.write(contents
)
102 self
.addCleanup(os
.remove
, dropin_path
)
104 def read_attr(self
, link
, attribute
):
105 """Read a link attributed from the sysfs."""
106 # Note we we don't want to check if interface `link' is managed, we
107 # want to evaluate link variable and pass the value of the link to
108 # assert_link_states e.g. eth0=managed.
109 self
.assert_link_states(**{link
:'managed'})
110 with
open(os
.path
.join('/sys/class/net', link
, attribute
)) as f
:
111 return f
.readline().strip()
113 def assert_link_states(self
, **kwargs
):
114 """Match networkctl link states to the given ones.
116 Each keyword argument should be the name of a network interface
117 with its expected value of the "SETUP" column in output from
118 networkctl. The interfaces have five seconds to come online
119 before the check is performed. Every specified interface must
120 be present in the output, and any other interfaces found in the
123 A special interface state "managed" is supported, which matches
124 any value in the "SETUP" column other than "unmanaged".
128 interfaces
= set(kwargs
)
130 # Wait for the requested interfaces, but don't fail for them.
131 subprocess
.call([NETWORKD_WAIT_ONLINE
, '--timeout=5'] +
132 ['--interface=%s' % iface
for iface
in kwargs
])
134 # Validate each link state found in the networkctl output.
135 out
= subprocess
.check_output(['networkctl', '--no-legend']).rstrip()
136 for line
in out
.decode('utf-8').split('\n'):
137 fields
= line
.split()
138 if len(fields
) >= 5 and fields
[1] in kwargs
:
140 expected
= kwargs
[iface
]
142 if (actual
!= expected
and
143 not (expected
== 'managed' and actual
!= 'unmanaged')):
144 self
.fail("Link %s expects state %s, found %s" %
145 (iface
, expected
, actual
))
146 interfaces
.remove(iface
)
148 # Ensure that all requested interfaces have been covered.
150 self
.fail("Missing links in status output: %s" % interfaces
)
153 class BridgeTest(NetworkdTestingUtilities
, unittest
.TestCase
):
154 """Provide common methods for testing networkd against servers."""
157 self
.write_network('port1.netdev', '''\
161 MACAddress=12:34:56:78:9a:bc''')
162 self
.write_network('port2.netdev', '''\
166 MACAddress=12:34:56:78:9a:bd''')
167 self
.write_network('mybridge.netdev', '''\
171 self
.write_network('port1.network', '''\
176 self
.write_network('port2.network', '''\
181 self
.write_network('mybridge.network', '''\
186 Address=192.168.250.33/24
187 Gateway=192.168.250.1''')
188 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
191 subprocess
.check_call(['systemctl', 'stop', 'systemd-networkd'])
192 subprocess
.check_call(['ip', 'link', 'del', 'mybridge'])
193 subprocess
.check_call(['ip', 'link', 'del', 'port1'])
194 subprocess
.check_call(['ip', 'link', 'del', 'port2'])
196 def test_bridge_init(self
):
197 self
.assert_link_states(
202 def test_bridge_port_priority(self
):
203 self
.assertEqual(self
.read_attr('port1', 'brport/priority'), '32')
204 self
.write_network_dropin('port1.network', 'priority', '''\
208 subprocess
.check_call(['systemctl', 'restart', 'systemd-networkd'])
209 self
.assertEqual(self
.read_attr('port1', 'brport/priority'), '28')
211 def test_bridge_port_priority_set_zero(self
):
212 """It should be possible to set the bridge port priority to 0"""
213 self
.assertEqual(self
.read_attr('port2', 'brport/priority'), '32')
214 self
.write_network_dropin('port2.network', 'priority', '''\
218 subprocess
.check_call(['systemctl', 'restart', 'systemd-networkd'])
219 self
.assertEqual(self
.read_attr('port2', 'brport/priority'), '0')
221 class ClientTestBase(NetworkdTestingUtilities
):
222 """Provide common methods for testing networkd against servers."""
225 def setUpClass(klass
):
226 klass
.orig_log_level
= subprocess
.check_output(
227 ['systemctl', 'show', '--value', '--property', 'LogLevel'],
228 universal_newlines
=True).strip()
229 subprocess
.check_call(['systemd-analyze', 'set-log-level', 'debug'])
232 def tearDownClass(klass
):
233 subprocess
.check_call(['systemd-analyze', 'set-log-level', klass
.orig_log_level
])
236 self
.iface
= 'test_eth42'
237 self
.if_router
= 'router_eth42'
238 self
.workdir_obj
= tempfile
.TemporaryDirectory()
239 self
.workdir
= self
.workdir_obj
.name
240 self
.config
= 'test_eth42.network'
242 # get current journal cursor
243 subprocess
.check_output(['journalctl', '--sync'])
244 out
= subprocess
.check_output(['journalctl', '-b', '--quiet',
245 '--no-pager', '-n0', '--show-cursor'],
246 universal_newlines
=True)
247 self
.assertTrue(out
.startswith('-- cursor:'))
248 self
.journal_cursor
= out
.split()[-1]
251 self
.shutdown_iface()
252 subprocess
.call(['systemctl', 'stop', 'systemd-networkd'])
253 subprocess
.call(['ip', 'link', 'del', 'dummy0'],
254 stderr
=subprocess
.DEVNULL
)
256 def show_journal(self
, unit
):
257 '''Show journal of given unit since start of the test'''
259 print('---- %s ----' % unit
)
260 subprocess
.check_output(['journalctl', '--sync'])
262 subprocess
.call(['journalctl', '-b', '--no-pager', '--quiet',
263 '--cursor', self
.journal_cursor
, '-u', unit
])
265 def create_iface(self
, ipv6
=False):
266 '''Create test interface with DHCP server behind it'''
268 raise NotImplementedError('must be implemented by a subclass')
270 def shutdown_iface(self
):
271 '''Remove test interface and stop DHCP server'''
273 raise NotImplementedError('must be implemented by a subclass')
275 def print_server_log(self
):
276 '''Print DHCP server log for debugging failures'''
278 raise NotImplementedError('must be implemented by a subclass')
280 def do_test(self
, coldplug
=True, ipv6
=False, extra_opts
='',
281 online_timeout
=10, dhcp_mode
='yes'):
283 subprocess
.check_call(['systemctl', 'start', 'systemd-resolved'])
284 except subprocess
.CalledProcessError
:
285 self
.show_journal('systemd-resolved.service')
287 self
.write_network(self
.config
, '''\
292 %s''' % (self
.iface
, dhcp_mode
, extra_opts
))
295 # create interface first, then start networkd
296 self
.create_iface(ipv6
=ipv6
)
297 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
298 elif coldplug
is not None:
299 # start networkd first, then create interface
300 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
301 self
.create_iface(ipv6
=ipv6
)
303 # "None" means test sets up interface by itself
304 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
307 subprocess
.check_call([NETWORKD_WAIT_ONLINE
, '--interface',
308 self
.iface
, '--timeout=%i' % online_timeout
])
311 # check iface state and IP 6 address; FIXME: we need to wait a bit
312 # longer, as the iface is "configured" already with IPv4 *or*
313 # IPv6, but we want to wait for both
315 out
= subprocess
.check_output(['ip', 'a', 'show', 'dev', self
.iface
])
316 if b
'state UP' in out
and b
'inet6 2600' in out
and b
'inet 192.168' in out
:
320 self
.fail('timed out waiting for IPv6 configuration')
322 self
.assertRegex(out
, b
'inet6 2600::.* scope global .*dynamic')
323 self
.assertRegex(out
, b
'inet6 fe80::.* scope link')
325 # should have link-local address on IPv6 only
326 out
= subprocess
.check_output(['ip', '-6', 'a', 'show', 'dev', self
.iface
])
327 self
.assertRegex(out
, br
'inet6 fe80::.* scope link')
328 self
.assertNotIn(b
'scope global', out
)
330 # should have IPv4 address
331 out
= subprocess
.check_output(['ip', '-4', 'a', 'show', 'dev', self
.iface
])
332 self
.assertIn(b
'state UP', out
)
333 self
.assertRegex(out
, br
'inet 192.168.5.\d+/.* scope global dynamic')
335 # check networkctl state
336 out
= subprocess
.check_output(['networkctl'])
337 self
.assertRegex(out
, (r
'%s\s+ether\s+[a-z-]+\s+unmanaged' % self
.if_router
).encode())
338 self
.assertRegex(out
, (r
'%s\s+ether\s+routable\s+configured' % self
.iface
).encode())
340 out
= subprocess
.check_output(['networkctl', 'status', self
.iface
])
341 self
.assertRegex(out
, br
'Type:\s+ether')
342 self
.assertRegex(out
, br
'State:\s+routable.*configured')
343 self
.assertRegex(out
, br
'Address:\s+192.168.5.\d+')
345 self
.assertRegex(out
, br
'2600::')
347 self
.assertNotIn(br
'2600::', out
)
348 self
.assertRegex(out
, br
'fe80::')
349 self
.assertRegex(out
, br
'Gateway:\s+192.168.5.1')
350 self
.assertRegex(out
, br
'DNS:\s+192.168.5.1')
351 except (AssertionError, subprocess
.CalledProcessError
):
352 # show networkd status, journal, and DHCP server log on failure
353 with
open(os
.path
.join(NETWORK_UNITDIR
, self
.config
)) as f
:
354 print('\n---- %s ----\n%s' % (self
.config
, f
.read()))
355 print('---- interface status ----')
357 subprocess
.call(['ip', 'a', 'show', 'dev', self
.iface
])
358 print('---- networkctl status %s ----' % self
.iface
)
360 subprocess
.call(['networkctl', 'status', self
.iface
])
361 self
.show_journal('systemd-networkd.service')
362 self
.print_server_log()
365 for timeout
in range(50):
366 with
open(RESOLV_CONF
) as f
:
368 if 'nameserver 192.168.5.1\n' in contents
:
372 self
.fail('nameserver 192.168.5.1 not found in ' + RESOLV_CONF
)
374 if coldplug
is False:
375 # check post-down.d hook
376 self
.shutdown_iface()
378 def test_coldplug_dhcp_yes_ip4(self
):
379 # we have a 12s timeout on RA, so we need to wait longer
380 self
.do_test(coldplug
=True, ipv6
=False, online_timeout
=15)
382 def test_coldplug_dhcp_yes_ip4_no_ra(self
):
383 # with disabling RA explicitly things should be fast
384 self
.do_test(coldplug
=True, ipv6
=False,
385 extra_opts
='IPv6AcceptRA=False')
387 def test_coldplug_dhcp_ip4_only(self
):
388 # we have a 12s timeout on RA, so we need to wait longer
389 self
.do_test(coldplug
=True, ipv6
=False, dhcp_mode
='ipv4',
392 def test_coldplug_dhcp_ip4_only_no_ra(self
):
393 # with disabling RA explicitly things should be fast
394 self
.do_test(coldplug
=True, ipv6
=False, dhcp_mode
='ipv4',
395 extra_opts
='IPv6AcceptRA=False')
397 def test_coldplug_dhcp_ip6(self
):
398 self
.do_test(coldplug
=True, ipv6
=True)
400 def test_hotplug_dhcp_ip4(self
):
401 # With IPv4 only we have a 12s timeout on RA, so we need to wait longer
402 self
.do_test(coldplug
=False, ipv6
=False, online_timeout
=15)
404 def test_hotplug_dhcp_ip6(self
):
405 self
.do_test(coldplug
=False, ipv6
=True)
407 def test_route_only_dns(self
):
408 self
.write_network('myvpn.netdev', '''\
412 MACAddress=12:34:56:78:9a:bc''')
413 self
.write_network('myvpn.network', '''\
417 Address=192.168.42.100
419 Domains= ~company''')
421 self
.do_test(coldplug
=True, ipv6
=False,
422 extra_opts
='IPv6AcceptRouterAdvertisements=False')
424 with
open(RESOLV_CONF
) as f
:
426 # ~company is not a search domain, only a routing domain
427 self
.assertNotRegex(contents
, 'search.*company')
428 # our global server should appear
429 self
.assertIn('nameserver 192.168.5.1\n', contents
)
430 # should not have domain-restricted server as global server
431 self
.assertNotIn('nameserver 192.168.42.1\n', contents
)
433 def test_route_only_dns_all_domains(self
):
434 self
.write_network('myvpn.netdev', '''[NetDev]
437 MACAddress=12:34:56:78:9a:bc''')
438 self
.write_network('myvpn.network', '''[Match]
441 Address=192.168.42.100
443 Domains= ~company ~.''')
445 self
.do_test(coldplug
=True, ipv6
=False,
446 extra_opts
='IPv6AcceptRouterAdvertisements=False')
448 with
open(RESOLV_CONF
) as f
:
451 # ~company is not a search domain, only a routing domain
452 self
.assertNotRegex(contents
, 'search.*company')
454 # our global server should appear
455 self
.assertIn('nameserver 192.168.5.1\n', contents
)
456 # should have company server as global server due to ~.
457 self
.assertIn('nameserver 192.168.42.1\n', contents
)
460 @unittest.skipUnless(HAVE_DNSMASQ
, 'dnsmasq not installed')
461 class DnsmasqClientTest(ClientTestBase
, unittest
.TestCase
):
462 '''Test networkd client against dnsmasq'''
467 self
.iface_mac
= 'de:ad:be:ef:47:11'
469 def create_iface(self
, ipv6
=False, dnsmasq_opts
=None):
470 '''Create test interface with DHCP server behind it'''
473 subprocess
.check_call(['ip', 'link', 'add', 'name', self
.iface
,
474 'address', self
.iface_mac
,
475 'type', 'veth', 'peer', 'name', self
.if_router
])
477 # give our router an IP
478 subprocess
.check_call(['ip', 'a', 'flush', 'dev', self
.if_router
])
479 subprocess
.check_call(['ip', 'a', 'add', '192.168.5.1/24', 'dev', self
.if_router
])
481 subprocess
.check_call(['ip', 'a', 'add', '2600::1/64', 'dev', self
.if_router
])
482 subprocess
.check_call(['ip', 'link', 'set', self
.if_router
, 'up'])
485 self
.dnsmasq_log
= os
.path
.join(self
.workdir
, 'dnsmasq.log')
486 lease_file
= os
.path
.join(self
.workdir
, 'dnsmasq.leases')
488 extra_opts
= ['--enable-ra', '--dhcp-range=2600::10,2600::20']
492 extra_opts
+= dnsmasq_opts
493 self
.dnsmasq
= subprocess
.Popen(
494 ['dnsmasq', '--keep-in-foreground', '--log-queries',
495 '--log-facility=' + self
.dnsmasq_log
, '--conf-file=/dev/null',
496 '--dhcp-leasefile=' + lease_file
, '--bind-interfaces',
497 '--interface=' + self
.if_router
, '--except-interface=lo',
498 '--dhcp-range=192.168.5.10,192.168.5.200'] + extra_opts
)
500 def shutdown_iface(self
):
501 '''Remove test interface and stop DHCP server'''
504 subprocess
.check_call(['ip', 'link', 'del', 'dev', self
.if_router
])
505 self
.if_router
= None
511 def print_server_log(self
):
512 '''Print DHCP server log for debugging failures'''
514 with
open(self
.dnsmasq_log
) as f
:
515 sys
.stdout
.write('\n\n---- dnsmasq log ----\n%s\n------\n\n' % f
.read())
517 def test_resolved_domain_restricted_dns(self
):
518 '''resolved: domain-restricted DNS servers'''
520 # create interface for generic connections; this will map all DNS names
522 self
.create_iface(dnsmasq_opts
=['--address=/#/192.168.42.1'])
523 self
.write_network('general.network', '''\
528 IPv6AcceptRA=False''' % self
.iface
)
530 # create second device/dnsmasq for a .company/.lab VPN interface
531 # static IPs for simplicity
532 self
.add_veth_pair('testvpnclient', 'testvpnrouter')
533 subprocess
.check_call(['ip', 'a', 'flush', 'dev', 'testvpnrouter'])
534 subprocess
.check_call(['ip', 'a', 'add', '10.241.3.1/24', 'dev', 'testvpnrouter'])
535 subprocess
.check_call(['ip', 'link', 'set', 'testvpnrouter', 'up'])
537 vpn_dnsmasq_log
= os
.path
.join(self
.workdir
, 'dnsmasq-vpn.log')
538 vpn_dnsmasq
= subprocess
.Popen(
539 ['dnsmasq', '--keep-in-foreground', '--log-queries',
540 '--log-facility=' + vpn_dnsmasq_log
, '--conf-file=/dev/null',
541 '--dhcp-leasefile=/dev/null', '--bind-interfaces',
542 '--interface=testvpnrouter', '--except-interface=lo',
543 '--address=/math.lab/10.241.3.3', '--address=/cantina.company/10.241.4.4'])
544 self
.addCleanup(vpn_dnsmasq
.wait
)
545 self
.addCleanup(vpn_dnsmasq
.kill
)
547 self
.write_network('vpn.network', '''\
552 Address=10.241.3.2/24
554 Domains= ~company ~lab''')
556 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
557 subprocess
.check_call([NETWORKD_WAIT_ONLINE
, '--interface', self
.iface
,
558 '--interface=testvpnclient', '--timeout=20'])
560 # ensure we start fresh with every test
561 subprocess
.check_call(['systemctl', 'restart', 'systemd-resolved'])
563 # test vpnclient specific domains; these should *not* be answered by
565 out
= subprocess
.check_output(['systemd-resolve', 'math.lab'])
566 self
.assertIn(b
'math.lab: 10.241.3.3', out
)
567 out
= subprocess
.check_output(['systemd-resolve', 'kettle.cantina.company'])
568 self
.assertIn(b
'kettle.cantina.company: 10.241.4.4', out
)
570 # test general domains
571 out
= subprocess
.check_output(['systemd-resolve', 'megasearch.net'])
572 self
.assertIn(b
'megasearch.net: 192.168.42.1', out
)
574 with
open(self
.dnsmasq_log
) as f
:
575 general_log
= f
.read()
576 with
open(vpn_dnsmasq_log
) as f
:
579 # VPN domains should only be sent to VPN DNS
580 self
.assertRegex(vpn_log
, 'query.*math.lab')
581 self
.assertRegex(vpn_log
, 'query.*cantina.company')
582 self
.assertNotIn('.lab', general_log
)
583 self
.assertNotIn('.company', general_log
)
585 # general domains should not be sent to the VPN DNS
586 self
.assertRegex(general_log
, 'query.*megasearch.net')
587 self
.assertNotIn('megasearch.net', vpn_log
)
589 def test_resolved_etc_hosts(self
):
590 '''resolved queries to /etc/hosts'''
592 # FIXME: -t MX query fails with enabled DNSSEC (even when using
593 # the known negative trust anchor .internal instead of .example)
594 conf
= '/run/systemd/resolved.conf.d/test-disable-dnssec.conf'
595 os
.makedirs(os
.path
.dirname(conf
), exist_ok
=True)
596 with
open(conf
, 'w') as f
:
597 f
.write('[Resolve]\nDNSSEC=no')
598 self
.addCleanup(os
.remove
, conf
)
600 # create /etc/hosts bind mount which resolves my.example for IPv4
601 hosts
= os
.path
.join(self
.workdir
, 'hosts')
602 with
open(hosts
, 'w') as f
:
603 f
.write('172.16.99.99 my.example\n')
604 subprocess
.check_call(['mount', '--bind', hosts
, '/etc/hosts'])
605 self
.addCleanup(subprocess
.call
, ['umount', '/etc/hosts'])
606 subprocess
.check_call(['systemctl', 'stop', 'systemd-resolved.service'])
608 # note: different IPv4 address here, so that it's easy to tell apart
609 # what resolved the query
610 self
.create_iface(dnsmasq_opts
=['--host-record=my.example,172.16.99.1,2600::99:99',
611 '--host-record=other.example,172.16.0.42,2600::42',
612 '--mx-host=example,mail.example'],
614 self
.do_test(coldplug
=None, ipv6
=True)
617 # family specific queries
618 out
= subprocess
.check_output(['systemd-resolve', '-4', 'my.example'])
619 self
.assertIn(b
'my.example: 172.16.99.99', out
)
620 # we don't expect an IPv6 answer; if /etc/hosts has any IP address,
621 # it's considered a sufficient source
622 self
.assertNotEqual(subprocess
.call(['systemd-resolve', '-6', 'my.example']), 0)
623 # "any family" query; IPv4 should come from /etc/hosts
624 out
= subprocess
.check_output(['systemd-resolve', 'my.example'])
625 self
.assertIn(b
'my.example: 172.16.99.99', out
)
626 # IP → name lookup; again, takes the /etc/hosts one
627 out
= subprocess
.check_output(['systemd-resolve', '172.16.99.99'])
628 self
.assertIn(b
'172.16.99.99: my.example', out
)
630 # non-address RRs should fall back to DNS
631 out
= subprocess
.check_output(['systemd-resolve', '--type=MX', 'example'])
632 self
.assertIn(b
'example IN MX 1 mail.example', out
)
634 # other domains query DNS
635 out
= subprocess
.check_output(['systemd-resolve', 'other.example'])
636 self
.assertIn(b
'172.16.0.42', out
)
637 out
= subprocess
.check_output(['systemd-resolve', '172.16.0.42'])
638 self
.assertIn(b
'172.16.0.42: other.example', out
)
639 except (AssertionError, subprocess
.CalledProcessError
):
640 self
.show_journal('systemd-resolved.service')
641 self
.print_server_log()
644 def test_transient_hostname(self
):
645 '''networkd sets transient hostname from DHCP'''
647 orig_hostname
= socket
.gethostname()
648 self
.addCleanup(socket
.sethostname
, orig_hostname
)
649 # temporarily move /etc/hostname away; restart hostnamed to pick it up
650 if os
.path
.exists('/etc/hostname'):
651 subprocess
.check_call(['mount', '--bind', '/dev/null', '/etc/hostname'])
652 self
.addCleanup(subprocess
.call
, ['umount', '/etc/hostname'])
653 subprocess
.check_call(['systemctl', 'stop', 'systemd-hostnamed.service'])
655 self
.create_iface(dnsmasq_opts
=['--dhcp-host=%s,192.168.5.210,testgreen' % self
.iface_mac
])
656 self
.do_test(coldplug
=None, extra_opts
='IPv6AcceptRA=False', dhcp_mode
='ipv4')
659 # should have received the fixed IP above
660 out
= subprocess
.check_output(['ip', '-4', 'a', 'show', 'dev', self
.iface
])
661 self
.assertRegex(out
, b
'inet 192.168.5.210/24 .* scope global dynamic')
662 # should have set transient hostname in hostnamed; this is
663 # sometimes a bit lagging (issue #4753), so retry a few times
664 for retry
in range(1, 6):
665 out
= subprocess
.check_output(['hostnamectl'])
666 if b
'testgreen' in out
:
669 sys
.stdout
.write('[retry %i] ' % retry
)
672 self
.fail('Transient hostname not found in hostnamectl:\n%s' % out
.decode())
673 # and also applied to the system
674 self
.assertEqual(socket
.gethostname(), 'testgreen')
675 except AssertionError:
676 self
.show_journal('systemd-networkd.service')
677 self
.show_journal('systemd-hostnamed.service')
678 self
.print_server_log()
681 def test_transient_hostname_with_static(self
):
682 '''transient hostname is not applied if static hostname exists'''
684 orig_hostname
= socket
.gethostname()
685 self
.addCleanup(socket
.sethostname
, orig_hostname
)
686 if not os
.path
.exists('/etc/hostname'):
687 self
.writeConfig('/etc/hostname', orig_hostname
)
688 subprocess
.check_call(['systemctl', 'stop', 'systemd-hostnamed.service'])
690 self
.create_iface(dnsmasq_opts
=['--dhcp-host=%s,192.168.5.210,testgreen' % self
.iface_mac
])
691 self
.do_test(coldplug
=None, extra_opts
='IPv6AcceptRA=False', dhcp_mode
='ipv4')
694 # should have received the fixed IP above
695 out
= subprocess
.check_output(['ip', '-4', 'a', 'show', 'dev', self
.iface
])
696 self
.assertRegex(out
, b
'inet 192.168.5.210/24 .* scope global dynamic')
697 # static hostname wins over transient one, thus *not* applied
698 self
.assertEqual(socket
.gethostname(), orig_hostname
)
699 except AssertionError:
700 self
.show_journal('systemd-networkd.service')
701 self
.show_journal('systemd-hostnamed.service')
702 self
.print_server_log()
706 class NetworkdClientTest(ClientTestBase
, unittest
.TestCase
):
707 '''Test networkd client against networkd server'''
713 def create_iface(self
, ipv6
=False, dhcpserver_opts
=None):
714 '''Create test interface with DHCP server behind it'''
716 # run "router-side" networkd in own mount namespace to shield it from
717 # "client-side" configuration and networkd
718 (fd
, script
) = tempfile
.mkstemp(prefix
='networkd-router.sh')
719 self
.addCleanup(os
.remove
, script
)
720 with os
.fdopen(fd
, 'w+') as f
:
723 mkdir -p /run/systemd/network
724 mkdir -p /run/systemd/netif
725 mount -t tmpfs none /run/systemd/network
726 mount -t tmpfs none /run/systemd/netif
727 [ ! -e /run/dbus ] || mount -t tmpfs none /run/dbus
728 # create router/client veth pair
729 cat << EOF > /run/systemd/network/test.netdev
738 cat << EOF > /run/systemd/network/test.network
743 Address=192.168.5.1/24
754 # run networkd as in systemd-networkd.service
755 exec $(systemctl cat systemd-networkd.service | sed -n '/^ExecStart=/ { s/^.*=//; s/^[@+-]//; s/^!*//; p}')
756 ''' % {'ifr': self
.if_router
, 'ifc': self
.iface
, 'addr6': ipv6
and 'Address=2600::1/64' or '',
757 'dhopts': dhcpserver_opts
or ''})
761 subprocess
.check_call(['systemd-run', '--unit=networkd-test-router.service',
762 '-p', 'InaccessibleDirectories=-/etc/systemd/network',
763 '-p', 'InaccessibleDirectories=-/run/systemd/network',
764 '-p', 'InaccessibleDirectories=-/run/systemd/netif',
765 '--service-type=notify', script
])
767 # wait until devices got created
769 out
= subprocess
.check_output(['ip', 'a', 'show', 'dev', self
.if_router
])
770 if b
'state UP' in out
and b
'scope global' in out
:
774 def shutdown_iface(self
):
775 '''Remove test interface and stop DHCP server'''
778 subprocess
.check_call(['systemctl', 'stop', 'networkd-test-router.service'])
779 # ensure failed transient unit does not stay around
780 subprocess
.call(['systemctl', 'reset-failed', 'networkd-test-router.service'])
781 subprocess
.call(['ip', 'link', 'del', 'dev', self
.if_router
])
782 self
.if_router
= None
784 def print_server_log(self
):
785 '''Print DHCP server log for debugging failures'''
787 self
.show_journal('networkd-test-router.service')
789 @unittest.skip('networkd does not have DHCPv6 server support')
790 def test_hotplug_dhcp_ip6(self
):
793 @unittest.skip('networkd does not have DHCPv6 server support')
794 def test_coldplug_dhcp_ip6(self
):
797 def test_search_domains(self
):
799 # we don't use this interface for this test
800 self
.if_router
= None
802 self
.write_network('test.netdev', '''\
806 MACAddress=12:34:56:78:9a:bc''')
807 self
.write_network('test.network', '''\
811 Address=192.168.42.100
813 Domains= one two three four five six seven eight nine ten''')
815 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
817 for timeout
in range(50):
818 with
open(RESOLV_CONF
) as f
:
820 if ' one' in contents
:
823 self
.assertRegex(contents
, 'search .*one two three four')
824 self
.assertNotIn('seven\n', contents
)
825 self
.assertIn('# Too many search domains configured, remaining ones ignored.\n', contents
)
827 def test_search_domains_too_long(self
):
829 # we don't use this interface for this test
830 self
.if_router
= None
832 name_prefix
= 'a' * 60
834 self
.write_network('test.netdev', '''\
838 MACAddress=12:34:56:78:9a:bc''')
839 self
.write_network('test.network', '''\
843 Address=192.168.42.100
845 Domains={p}0 {p}1 {p}2 {p}3 {p}4'''.format(p
=name_prefix
))
847 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
849 for timeout
in range(50):
850 with
open(RESOLV_CONF
) as f
:
852 if ' one' in contents
:
855 self
.assertRegex(contents
, 'search .*{p}0 {p}1 {p}2'.format(p
=name_prefix
))
856 self
.assertIn('# Total length of all search domains is too long, remaining ones ignored.', contents
)
858 def test_dropin(self
):
859 # we don't use this interface for this test
860 self
.if_router
= None
862 self
.write_network('test.netdev', '''\
866 MACAddress=12:34:56:78:9a:bc''')
867 self
.write_network('test.network', '''\
871 Address=192.168.42.100
873 self
.write_network_dropin('test.network', 'dns', '''\
877 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
879 for timeout
in range(50):
880 with
open(RESOLV_CONF
) as f
:
882 if ' 127.0.0.1' in contents
:
885 self
.assertIn('nameserver 192.168.42.1\n', contents
)
886 self
.assertIn('nameserver 127.0.0.1\n', contents
)
888 def test_dhcp_timezone(self
):
889 '''networkd sets time zone from DHCP'''
892 out
= subprocess
.check_output(['busctl', 'get-property', 'org.freedesktop.timedate1',
893 '/org/freedesktop/timedate1', 'org.freedesktop.timedate1', 'Timezone'])
894 assert out
.startswith(b
's "')
896 assert out
.endswith(b
'"')
897 return out
[3:-1].decode()
899 orig_timezone
= get_tz()
900 self
.addCleanup(subprocess
.call
, ['timedatectl', 'set-timezone', orig_timezone
])
902 self
.create_iface(dhcpserver_opts
='EmitTimezone=yes\nTimezone=Pacific/Honolulu')
903 self
.do_test(coldplug
=None, extra_opts
='IPv6AcceptRA=false\n[DHCP]\nUseTimezone=true', dhcp_mode
='ipv4')
905 # should have applied the received timezone
907 self
.assertEqual(get_tz(), 'Pacific/Honolulu')
908 except AssertionError:
909 self
.show_journal('systemd-networkd.service')
910 self
.show_journal('systemd-hostnamed.service')
914 class MatchClientTest(unittest
.TestCase
, NetworkdTestingUtilities
):
915 """Test [Match] sections in .network files.
917 Be aware that matching the test host's interfaces will wipe their
918 configuration, so as a precaution, all network files should have a
919 restrictive [Match] section to only ever interfere with the
920 temporary veth interfaces created here.
925 subprocess
.call(['systemctl', 'stop', 'systemd-networkd'])
927 def test_basic_matching(self
):
928 """Verify the Name= line works throughout this class."""
929 self
.add_veth_pair('test_if1', 'fake_if2')
930 self
.write_network('test.network', "[Match]\nName=test_*\n[Network]")
931 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
932 self
.assert_link_states(test_if1
='managed', fake_if2
='unmanaged')
934 def test_inverted_matching(self
):
935 """Verify that a '!'-prefixed value inverts the match."""
936 # Use a MAC address as the interfaces' common matching attribute
937 # to avoid depending on udev, to support testing in containers.
938 mac
= '00:01:02:03:98:99'
939 self
.add_veth_pair('test_veth', 'test_peer',
940 ['addr', mac
], ['addr', mac
])
941 self
.write_network('no-veth.network', """\
944 Name=!nonexistent *peer*
946 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
947 self
.assert_link_states(test_veth
='managed', test_peer
='unmanaged')
950 class UnmanagedClientTest(unittest
.TestCase
, NetworkdTestingUtilities
):
951 """Test if networkd manages the correct interfaces."""
954 """Write .network files to match the named veth devices."""
955 # Define the veth+peer pairs to be created.
956 # Their pairing doesn't actually matter, only their names do.
962 # Define the contents of .network files to be read in order.
964 "[Match]\nName=m1def\n",
965 "[Match]\nName=m1unm\n[Link]\nUnmanaged=yes\n",
966 "[Match]\nName=m1*\n[Link]\nUnmanaged=no\n",
969 # Write out the .network files to be cleaned up automatically.
970 for i
, config
in enumerate(self
.configs
):
971 self
.write_network("%02d-test.network" % i
, config
)
975 subprocess
.call(['systemctl', 'stop', 'systemd-networkd'])
977 def create_iface(self
):
978 """Create temporary veth pairs for interface matching."""
979 for veth
, peer
in self
.veths
.items():
980 self
.add_veth_pair(veth
, peer
)
982 def test_unmanaged_setting(self
):
983 """Verify link states with Unmanaged= settings, hot-plug."""
984 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
986 self
.assert_link_states(m1def
='managed',
991 def test_unmanaged_setting_coldplug(self
):
992 """Verify link states with Unmanaged= settings, cold-plug."""
994 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
995 self
.assert_link_states(m1def
='managed',
1000 def test_catchall_config(self
):
1001 """Verify link states with a catch-all config, hot-plug."""
1002 # Don't actually catch ALL interfaces. It messes up the host.
1003 self
.write_network('all.network', "[Match]\nName=m[01]???\n")
1004 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
1006 self
.assert_link_states(m1def
='managed',
1011 def test_catchall_config_coldplug(self
):
1012 """Verify link states with a catch-all config, cold-plug."""
1013 # Don't actually catch ALL interfaces. It messes up the host.
1014 self
.write_network('all.network', "[Match]\nName=m[01]???\n")
1016 subprocess
.check_call(['systemctl', 'start', 'systemd-networkd'])
1017 self
.assert_link_states(m1def
='managed',
1023 if __name__
== '__main__':
1024 unittest
.main(testRunner
=unittest
.TextTestRunner(stream
=sys
.stdout
,