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test-network: check if static routes not overridden by NDisc routes

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This commit is contained in:
Yu Watanabe 2024-06-23 14:37:01 +09:00
parent fd436c8d67
commit 62fb079a3b
2 changed files with 38 additions and 0 deletions
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14
test/test-network/conf/25-ipv6-prefix-veth-static-route.network Normal file
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@ -0,0 +1,14 @@
# SPDX-License-Identifier: LGPL-2.1-or-later
[Match]
Name=veth99
[Network]
IPv6AcceptRA=true
[Route]
Gateway=fe80::1034:56ff:fe78:9abd
GatewayOnLink=no
Metric=256
[IPv6AcceptRA]
RouteMetric=256

24
test/test-network/systemd-networkd-tests.py
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@ -5824,6 +5824,30 @@ class NetworkdRATests(unittest.TestCase, Utilities):
self.assertIn('pref high', output)
self.assertNotIn('pref low', output)
def test_ndisc_vs_static_route(self):
copy_network_unit('25-veth.netdev', '25-ipv6-prefix.network', '25-ipv6-prefix-veth-static-route.network')
start_networkd()
self.wait_online('veth99:routable', 'veth-peer:degraded')
output = check_output('ip -6 route show dev veth99 table all')
print(output)
# If a conflicting static route is already configured, do not override the static route.
output = check_output('ip -6 route show dev veth99 default via fe80::1034:56ff:fe78:9abd')
print(output)
self.assertIn('default proto static metric 256 pref medium', output)
self.assertNotIn('proto ra', output)
if not os.path.exists(test_ndisc_send):
self.skipTest(f"{test_ndisc_send} does not exist.")
# Also check if the static route is protected from RA with zero lifetime
check_output(f'{test_ndisc_send} --interface veth-peer --type router-advertisement --lifetime 0')
time.sleep(2)
output = check_output('ip -6 route show dev veth99 default via fe80::1034:56ff:fe78:9abd')
print(output)
self.assertIn('default proto static metric 256 pref medium', output)
# radvd supports captive portal since v2.20.
# https://github.com/radvd-project/radvd/commit/791179a7f730decbddb2290ef0e34aa85d71b1bc
@unittest.skipUnless(radvd_check_config('captive-portal.conf'), "Installed radvd doesn't support captive portals")