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test-network: add test cases for DHCPv6 prefix delegation

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This commit is contained in:
Yu Watanabe 2021-10-15 02:51:18 +09:00
parent dc5cae6c9d
commit caad88a22b
12 changed files with 348 additions and 0 deletions
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4
test/test-network/conf/13-dummy.netdev Normal file
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@ -0,0 +1,4 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[NetDev]
Name=dummy99
Kind=dummy

9
test/test-network/conf/25-veth-downstream.netdev Normal file
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@ -0,0 +1,9 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[NetDev]
Name=veth98
Kind=veth
MACAddress=12:34:56:78:9a:be
[Peer]
Name=veth98-peer
MACAddress=12:34:56:78:9a:bf

16
test/test-network/conf/dhcp6pd-downstream-dummy97.network Normal file
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@ -0,0 +1,16 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=dummy97
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=no
DHCP=no
DHCPv6PrefixDelegation=yes
[DHCPv6PrefixDelegation]
UplinkInterface=veth99
SubnetId=6
Announce=no
Token=eui64
Token=::1a:2b:3c:4d

16
test/test-network/conf/dhcp6pd-downstream-dummy98.network Normal file
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@ -0,0 +1,16 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=dummy98
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=no
DHCP=no
DHCPv6PrefixDelegation=yes
[DHCPv6PrefixDelegation]
UplinkInterface=veth99
SubnetId=3
Announce=no
Token=eui64
Token=::1a:2b:3c:4d

14
test/test-network/conf/dhcp6pd-downstream-dummy99.network Normal file
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@ -0,0 +1,14 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=dummy99
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=no
DHCP=no
DHCPv6PrefixDelegation=yes
[DHCPv6PrefixDelegation]
UplinkInterface=veth99
Assign=no
Announce=no

16
test/test-network/conf/dhcp6pd-downstream-test1.network Normal file
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@ -0,0 +1,16 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=test1
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=no
DHCP=no
DHCPv6PrefixDelegation=yes
[DHCPv6PrefixDelegation]
UplinkInterface=veth99
SubnetId=0
Announce=no
Token=eui64
Token=::1a:2b:3c:4d

11
test/test-network/conf/dhcp6pd-downstream-veth98-peer.network Normal file
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@ -0,0 +1,11 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=veth98-peer
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=yes
[IPv6AcceptRA]
Token=eui64
Token=::1a:2b:3c:4e

22
test/test-network/conf/dhcp6pd-downstream-veth98.network Normal file
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@ -0,0 +1,22 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=veth98
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=no
DHCP=no
DHCPv6PrefixDelegation=yes
IPv6SendRA=yes
[DHCPv6PrefixDelegation]
UplinkInterface=veth99
SubnetId=9
Announce=yes
Token=eui64
Token=::1a:2b:3c:4d
[IPv6SendRA]
UplinkInterface=:none
EmitDNS=no
EmitDomains=no

7
test/test-network/conf/dhcp6pd-server.network Normal file
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@ -0,0 +1,7 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=veth-peer
[Network]
IPv6AcceptRA=no
Address=3ffe:501:ffff:100::1/64

19
test/test-network/conf/dhcp6pd-upstream.network Normal file
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@ -0,0 +1,19 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=veth99
[Network]
IPv6PrivacyExtensions=yes
IPv6AcceptRA=no
DHCP=ipv6
DHCPv6PrefixDelegation=yes
[DHCPv6]
WithoutRA=solicit
[DHCPv6PrefixDelegation]
UplinkInterface=:self
SubnetId=10
Announce=no
Token=eui64
Token=::1a:2b:3c:4d

21
test/test-network/conf/isc-dhcpd-dhcp6pd.conf Normal file
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@ -0,0 +1,21 @@
default-lease-time 2592000;
preferred-lifetime 604800;
option dhcp-renewal-time 3600;
option dhcp-rebinding-time 7200;
# Enable RFC 5007 support (same than for DHCPv4)
allow leasequery;
option dhcp6.name-servers 3ffe:501:ffff:100:200:ff:fe00:3f3e;
option dhcp6.domain-search "test.example.com","example.com";
option dhcp6.info-refresh-time 21600;
subnet6 3ffe:501:ffff:100::/64 {
# Addresses available to clients
range6 3ffe:501:ffff:100::10 3ffe:501:ffff:100::100;
# Some /64 prefixes available for Prefix Delegation (RFC 3633)
prefix6 3ffe:501:ffff:200:: 3ffe:501:ffff:f00:: /56;
}

193
test/test-network/systemd-networkd-tests.py
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@ -14,6 +14,7 @@ import sys
import time
import unittest
from shutil import copytree
from pathlib import Path
network_unit_file_path='/run/systemd/network'
networkd_runtime_directory='/run/systemd/netif'
@ -26,6 +27,9 @@ dnsmasq_pid_file='/run/networkd-ci/test-dnsmasq.pid'
dnsmasq_log_file='/run/networkd-ci/test-dnsmasq.log'
dnsmasq_lease_file='/run/networkd-ci/test-dnsmasq.lease'
isc_dhcpd_pid_file='/run/networkd-ci/test-isc-dhcpd.pid'
isc_dhcpd_lease_file='/run/networkd-ci/test-isc-dhcpd.lease'
systemd_lib_paths=['/usr/lib/systemd', '/lib/systemd']
which_paths=':'.join(systemd_lib_paths + os.getenv('PATH', os.defpath).lstrip(':').split(':'))
@ -531,6 +535,17 @@ def remove_dnsmasq_log_file():
if os.path.exists(dnsmasq_log_file):
os.remove(dnsmasq_log_file)
def start_isc_dhcpd(interface, conf_file):
conf_file_path = os.path.join(networkd_ci_path, conf_file)
isc_dhcpd_command = f'dhcpd -6 -cf {conf_file_path} -lf {isc_dhcpd_lease_file} -pf {isc_dhcpd_pid_file} {interface}'
Path(isc_dhcpd_lease_file).touch()
check_output(isc_dhcpd_command)
def stop_isc_dhcpd():
stop_by_pid_file(isc_dhcpd_pid_file)
if os.path.exists(isc_dhcpd_lease_file):
os.remove(isc_dhcpd_lease_file)
def remove_networkd_state_files():
if os.path.exists(os.path.join(networkd_runtime_directory, 'state')):
os.remove(os.path.join(networkd_runtime_directory, 'state'))
@ -4846,6 +4861,184 @@ class NetworkdDHCPClientTests(unittest.TestCase, Utilities):
print(output)
self.assertRegex(output, 'inet 192.168.5.[0-9]*/24 metric 1024 brd 192.168.5.255 scope global dynamic veth99')
class NetworkdDHCP6PDTests(unittest.TestCase, Utilities):
links = [
'dummy97',
'dummy98',
'dummy99',
'test1',
'veth98',
'veth99',
]
units = [
'11-dummy.netdev',
'12-dummy.netdev',
'13-dummy.netdev',
'25-veth.netdev',
'25-veth-downstream.netdev',
'dhcp6pd-downstream-dummy97.network',
'dhcp6pd-downstream-dummy98.network',
'dhcp6pd-downstream-dummy99.network',
'dhcp6pd-downstream-test1.network',
'dhcp6pd-downstream-veth98.network',
'dhcp6pd-downstream-veth98-peer.network',
'dhcp6pd-server.network',
'dhcp6pd-upstream.network',
]
def setUp(self):
stop_isc_dhcpd()
remove_links(self.links)
stop_networkd(show_logs=False)
def tearDown(self):
stop_isc_dhcpd()
remove_links(self.links)
remove_unit_from_networkd_path(self.units)
stop_networkd(show_logs=True)
def test_dhcp6pd(self):
copy_unit_to_networkd_unit_path('25-veth.netdev', 'dhcp6pd-server.network', 'dhcp6pd-upstream.network',
'25-veth-downstream.netdev', 'dhcp6pd-downstream-veth98.network', 'dhcp6pd-downstream-veth98-peer.network',
'11-dummy.netdev', 'dhcp6pd-downstream-test1.network',
'dhcp6pd-downstream-dummy97.network',
'12-dummy.netdev', 'dhcp6pd-downstream-dummy98.network',
'13-dummy.netdev', 'dhcp6pd-downstream-dummy99.network')
start_networkd()
self.wait_online(['veth-peer:carrier'])
start_isc_dhcpd('veth-peer', 'isc-dhcpd-dhcp6pd.conf')
self.wait_online(['veth-peer:routable', 'veth99:routable', 'test1:routable', 'dummy98:routable', 'dummy99:degraded',
'veth98:routable', 'veth98-peer:routable'])
print('### ip -6 address show dev veth-peer scope global')
output = check_output('ip -6 address show dev veth-peer scope global')
print(output)
self.assertIn('inet6 3ffe:501:ffff:100::1/64 scope global', output)
print('### ip -6 address show dev veth99 scope global')
output = check_output('ip -6 address show dev veth99 scope global')
print(output)
# IA_NA
self.assertRegex(output, 'inet6 3ffe:501:ffff:100::[0-9]*/128 scope global (dynamic noprefixroute|noprefixroute dynamic)')
# address in IA_PD (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]10:1a:2b:3c:4d/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (Token=eui64)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]10:1034:56ff:fe78:9abc/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (temporary)
# Note that the temporary addresses may appear after the link enters configured state
self.wait_address('veth99', 'inet6 3ffe:501:ffff:[2-9a-f]10:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 address show dev test1 scope global')
output = check_output('ip -6 address show dev test1 scope global')
print(output)
# address in IA_PD (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]00:1a:2b:3c:4d/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (temporary)
self.wait_address('test1', 'inet6 3ffe:501:ffff:[2-9a-f]00:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 address show dev dummy98 scope global')
output = check_output('ip -6 address show dev dummy98 scope global')
print(output)
# address in IA_PD (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]03:1a:2b:3c:4d/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (temporary)
self.wait_address('dummy98', 'inet6 3ffe:501:ffff:[2-9a-f]03:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 address show dev veth98 scope global')
output = check_output('ip -6 address show dev veth98 scope global')
print(output)
# address in IA_PD (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]09:1a:2b:3c:4d/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (Token=eui64)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]09:1034:56ff:fe78:9abe/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (temporary)
self.wait_address('veth98', 'inet6 3ffe:501:ffff:[2-9a-f]09:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 address show dev veth98-peer scope global')
output = check_output('ip -6 address show dev veth98-peer scope global')
print(output)
# NDisc address (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]09:1a:2b:3c:4e/64 (metric 256 |)scope global dynamic mngtmpaddr')
# NDisc address (Token=eui64)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]09:1034:56ff:fe78:9abf/64 (metric 256 |)scope global dynamic mngtmpaddr')
# NDisc address (temporary)
self.wait_address('veth98-peer', 'inet6 3ffe:501:ffff:[2-9a-f]09:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 address show dev dummy99 scope global')
output = check_output('ip -6 address show dev dummy98 scope global')
print(output)
print('### ip -6 route show type unreachable')
output = check_output('ip -6 route show type unreachable')
print(output)
self.assertRegex(output, 'unreachable 3ffe:501:ffff:[2-9a-f]00::/56 dev lo proto dhcp')
print('### ip -6 route show dev veth99')
output = check_output('ip -6 route show dev veth99')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]10::/64 proto kernel metric [0-9]* expires')
print('### ip -6 route show dev test1')
output = check_output('ip -6 route show dev test1')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]00::/64 proto kernel metric [0-9]* expires')
print('### ip -6 route show dev dummy98')
output = check_output('ip -6 route show dev dummy98')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]03::/64 proto kernel metric [0-9]* expires')
print('### ip -6 route show dev dummy99')
output = check_output('ip -6 route show dev dummy99')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]01::/64 proto dhcp metric [0-9]* expires')
print('### ip -6 route show dev veth98')
output = check_output('ip -6 route show dev veth98')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]09::/64 proto kernel metric [0-9]* expires')
print('### ip -6 route show dev veth98-peer')
output = check_output('ip -6 route show dev veth98-peer')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]09::/64 proto ra metric [0-9]* expires')
# Test case for a downstream which appears later
check_output('ip link add dummy97 type dummy')
self.wait_online(['dummy97:routable'])
print('### ip -6 address show dev dummy97 scope global')
output = check_output('ip -6 address show dev dummy97 scope global')
print(output)
# address in IA_PD (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]06:1a:2b:3c:4d/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (temporary)
self.wait_address('dummy97', 'inet6 3ffe:501:ffff:[2-9a-f]06:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 route show dev dummy97')
output = check_output('ip -6 route show dev dummy97')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]06::/64 proto kernel metric [0-9]* expires')
# Test case for reconfigure
check_output(*networkctl_cmd, 'reconfigure', 'dummy98', env=env)
self.wait_online(['dummy98:routable'])
print('### ip -6 address show dev dummy98 scope global')
output = check_output('ip -6 address show dev dummy98 scope global')
print(output)
# address in IA_PD (Token=static)
self.assertRegex(output, 'inet6 3ffe:501:ffff:[2-9a-f]03:1a:2b:3c:4d/64 (metric 256 |)scope global dynamic mngtmpaddr')
# address in IA_PD (temporary)
self.wait_address('dummy98', 'inet6 3ffe:501:ffff:[2-9a-f]03:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*:[0-9a-f]*/64 (metric 256 |)scope global temporary dynamic', ipv='-6')
print('### ip -6 route show dev dummy98')
output = check_output('ip -6 route show dev dummy98')
print(output)
self.assertRegex(output, '3ffe:501:ffff:[2-9a-f]03::/64 proto kernel metric [0-9]* expires')
class NetworkdIPv6PrefixTests(unittest.TestCase, Utilities):
links = [
'dummy98',