From e721c998ba977db9184d13e119dda4d56269d553 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sat, 27 Feb 2021 22:16:56 +0100
Subject: tunnel: T3366: support changing tunnel parameters for gre-bridge
Linux prevents changing parameters on a gretap (which is used by gre-bridge)
interfaces. To overcome this limitation a tunnel must be destroyed and recreated
on demand when gre-bridge is used.
---
smoketest/scripts/cli/test_interfaces_tunnel.py | 31 +++++++++++++++++++++++++
1 file changed, 31 insertions(+)
(limited to 'smoketest')
diff --git a/smoketest/scripts/cli/test_interfaces_tunnel.py b/smoketest/scripts/cli/test_interfaces_tunnel.py
index 5f3791655..a041427a8 100755
--- a/smoketest/scripts/cli/test_interfaces_tunnel.py
+++ b/smoketest/scripts/cli/test_interfaces_tunnel.py
@@ -19,6 +19,7 @@ import json
from vyos.configsession import ConfigSession
from vyos.configsession import ConfigSessionError
+from vyos.template import inc_ip
from vyos.util import cmd
from base_interfaces_test import BasicInterfaceTest
@@ -203,5 +204,35 @@ class TunnelInterfaceTest(BasicInterfaceTest.BaseTest):
# Check if commit is ok
self.session.commit()
+ def test_gretap_parameters_change(self):
+ interface = f'tun1040'
+ gre_key = '10'
+ encapsulation = 'gre-bridge'
+ tos = '20'
+
+ self.session.set(self._base_path + [interface, 'encapsulation', encapsulation])
+ self.session.set(self._base_path + [interface, 'local-ip', self.local_v4])
+ self.session.set(self._base_path + [interface, 'remote-ip', remote_ip4])
+
+ # Check if commit is ok
+ self.session.commit()
+
+ conf = tunnel_conf(interface)
+ self.assertEqual(mtu, conf['mtu'])
+ self.assertEqual(interface, conf['ifname'])
+ self.assertEqual('gretap', conf['linkinfo']['info_kind'])
+ self.assertEqual(self.local_v4, conf['linkinfo']['info_data']['local'])
+ self.assertEqual(remote_ip4, conf['linkinfo']['info_data']['remote'])
+ self.assertEqual(0, conf['linkinfo']['info_data']['ttl'])
+
+ # Change remote ip address (inc host by 2
+ new_remote = inc_ip(remote_ip4, 2)
+ self.session.set(self._base_path + [interface, 'remote-ip', new_remote])
+ # Check if commit is ok
+ self.session.commit()
+
+ conf = tunnel_conf(interface)
+ self.assertEqual(new_remote, conf['linkinfo']['info_data']['remote'])
+
if __name__ == '__main__':
unittest.main(verbosity=2)
--
cgit v1.2.3