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-rwxr-xr-xtest/networkd-test.py56
1 files changed, 52 insertions, 4 deletions
diff --git a/test/networkd-test.py b/test/networkd-test.py
index 3091722fc1..a00941095b 100755
--- a/test/networkd-test.py
+++ b/test/networkd-test.py
@@ -37,6 +37,7 @@ import unittest
import tempfile
import subprocess
import shutil
+import socket
networkd_active = subprocess.call(['systemctl', 'is-active', '--quiet',
'systemd-networkd']) == 0
@@ -77,6 +78,8 @@ class ClientTestBase:
def tearDown(self):
self.shutdown_iface()
subprocess.call(['systemctl', 'stop', 'systemd-networkd'])
+ subprocess.call(['ip', 'link', 'del', 'dummy0'],
+ stderr=subprocess.DEVNULL)
def writeConfig(self, fname, contents):
os.makedirs(os.path.dirname(fname), exist_ok=True)
@@ -121,10 +124,13 @@ DHCP=%s
# create interface first, then start networkd
self.create_iface(ipv6=ipv6)
subprocess.check_call(['systemctl', 'start', 'systemd-networkd'])
- else:
+ elif coldplug is not None:
# start networkd first, then create interface
subprocess.check_call(['systemctl', 'start', 'systemd-networkd'])
self.create_iface(ipv6=ipv6)
+ else:
+ # "None" means test sets up interface by itself
+ subprocess.check_call(['systemctl', 'start', 'systemd-networkd'])
try:
subprocess.check_call([self.networkd_wait_online, '--interface',
@@ -194,7 +200,7 @@ DHCP=%s
else:
self.fail('nameserver 192.168.5.1 not found in ' + RESOLV_CONF)
- if not coldplug:
+ if coldplug is False:
# check post-down.d hook
self.shutdown_iface()
@@ -291,13 +297,15 @@ class DnsmasqClientTest(ClientTestBase, unittest.TestCase):
def setUp(self):
super().setUp()
self.dnsmasq = None
+ self.iface_mac = 'de:ad:be:ef:47:11'
def create_iface(self, ipv6=False, dnsmasq_opts=None):
'''Create test interface with DHCP server behind it'''
# add veth pair
- subprocess.check_call(['ip', 'link', 'add', 'name', self.iface, 'type',
- 'veth', 'peer', 'name', self.if_router])
+ subprocess.check_call(['ip', 'link', 'add', 'name', self.iface,
+ 'address', self.iface_mac,
+ 'type', 'veth', 'peer', 'name', self.if_router])
# give our router an IP
subprocess.check_call(['ip', 'a', 'flush', 'dev', self.if_router])
@@ -413,6 +421,46 @@ Domains= ~company ~lab''')
self.assertRegex(general_log, 'query.*megasearch.net')
self.assertNotIn('megasearch.net', vpn_log)
+ def test_transient_hostname(self):
+ '''networkd sets transient hostname from DHCP'''
+
+ orig_hostname = socket.gethostname()
+ self.addCleanup(socket.sethostname, orig_hostname)
+ # temporarily move /etc/hostname away; restart hostnamed to pick it up
+ if os.path.exists('/etc/hostname'):
+ subprocess.check_call(['mount', '--bind', '/dev/null', '/etc/hostname'])
+ self.addCleanup(subprocess.call, ['umount', '/etc/hostname'])
+ subprocess.check_call(['systemctl', 'stop', 'systemd-hostnamed.service'])
+
+ self.create_iface(dnsmasq_opts=['--dhcp-host=%s,192.168.5.210,testgreen' % self.iface_mac])
+ self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=False', dhcp_mode='ipv4')
+
+ # should have received the fixed IP above
+ out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface])
+ self.assertRegex(out, b'inet 192.168.5.210/24 .* scope global dynamic')
+ # should have set transient hostname in hostnamed
+ self.assertIn(b'testgreen', subprocess.check_output(['hostnamectl']))
+ # and also applied to the system
+ self.assertEqual(socket.gethostname(), 'testgreen')
+
+ def test_transient_hostname_with_static(self):
+ '''transient hostname is not applied if static hostname exists'''
+
+ orig_hostname = socket.gethostname()
+ self.addCleanup(socket.sethostname, orig_hostname)
+ if not os.path.exists('/etc/hostname'):
+ self.writeConfig('/etc/hostname', orig_hostname)
+ subprocess.check_call(['systemctl', 'stop', 'systemd-hostnamed.service'])
+
+ self.create_iface(dnsmasq_opts=['--dhcp-host=%s,192.168.5.210,testgreen' % self.iface_mac])
+ self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=False', dhcp_mode='ipv4')
+
+ # should have received the fixed IP above
+ out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface])
+ self.assertRegex(out, b'inet 192.168.5.210/24 .* scope global dynamic')
+ # static hostname wins over transient one, thus *not* applied
+ self.assertEqual(socket.gethostname(), orig_hostname)
+
class NetworkdClientTest(ClientTestBase, unittest.TestCase):
'''Test networkd client against networkd server'''