diff options
| -rw-r--r-- | interface-definitions/interfaces-vxlan.xml.in | 6 | ||||
| -rw-r--r-- | python/vyos/ifconfig/vxlan.py | 10 | ||||
| -rwxr-xr-x | smoketest/scripts/cli/test_interfaces_vxlan.py | 29 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces-vxlan.py | 24 |
4 files changed, 63 insertions, 6 deletions
diff --git a/interface-definitions/interfaces-vxlan.xml.in b/interface-definitions/interfaces-vxlan.xml.in index 0a8a88596..caeb58116 100644 --- a/interface-definitions/interfaces-vxlan.xml.in +++ b/interface-definitions/interfaces-vxlan.xml.in @@ -19,6 +19,12 @@ #include <include/interface/address-ipv4-ipv6.xml.i> #include <include/interface/description.xml.i> #include <include/interface/disable.xml.i> + <leafNode name="external"> + <properties> + <help>Use external control plane</help> + <valueless/> + </properties> + </leafNode> <leafNode name="group"> <properties> <help>Multicast group address for VXLAN interface</help> diff --git a/python/vyos/ifconfig/vxlan.py b/python/vyos/ifconfig/vxlan.py index d73fb47b8..9615f396d 100644 --- a/python/vyos/ifconfig/vxlan.py +++ b/python/vyos/ifconfig/vxlan.py @@ -54,18 +54,20 @@ class VXLANIf(Interface): # arguments used by iproute2. For more information please refer to: # - https://man7.org/linux/man-pages/man8/ip-link.8.html mapping = { - 'source_address' : 'local', - 'source_interface' : 'dev', - 'remote' : 'remote', 'group' : 'group', + 'external' : 'external', 'parameters.ip.dont_fragment': 'df set', 'parameters.ip.tos' : 'tos', 'parameters.ip.ttl' : 'ttl', 'parameters.ipv6.flowlabel' : 'flowlabel', 'parameters.nolearning' : 'nolearning', + 'remote' : 'remote', + 'source_address' : 'local', + 'source_interface' : 'dev', + 'vni' : 'id', } - cmd = 'ip link add {ifname} type {type} id {vni} dstport {port}' + cmd = 'ip link add {ifname} type {type} dstport {port}' for vyos_key, iproute2_key in mapping.items(): # dict_search will return an empty dict "{}" for valueless nodes like # "parameters.nolearning" - thus we need to test the nodes existence diff --git a/smoketest/scripts/cli/test_interfaces_vxlan.py b/smoketest/scripts/cli/test_interfaces_vxlan.py index f63c850d8..17874af89 100755 --- a/smoketest/scripts/cli/test_interfaces_vxlan.py +++ b/smoketest/scripts/cli/test_interfaces_vxlan.py @@ -16,6 +16,7 @@ import unittest +from vyos.configsession import ConfigSessionError from vyos.ifconfig import Interface from vyos.util import get_interface_config @@ -78,6 +79,9 @@ class VXLANInterfaceTest(BasicInterfaceTest.TestCase): label = options['linkinfo']['info_data']['label'] self.assertIn(f'parameters ipv6 flowlabel {label}', self._options[interface]) + if any('external' in s for s in self._options[interface]): + self.assertTrue(options['linkinfo']['info_data']['external']) + self.assertEqual('vxlan', options['linkinfo']['info_kind']) self.assertEqual('set', options['linkinfo']['info_data']['df']) self.assertEqual(f'0x{tos}', options['linkinfo']['info_data']['tos']) @@ -85,5 +89,30 @@ class VXLANInterfaceTest(BasicInterfaceTest.TestCase): self.assertEqual(Interface(interface).get_admin_state(), 'up') ttl += 10 + def test_vxlan_external(self): + interface = 'vxlan0' + source_address = '192.0.2.1' + self.cli_set(self._base_path + [interface, 'external']) + self.cli_set(self._base_path + [interface, 'source-address', source_address]) + + # Now add some more interfaces - this must fail and a CLI error needs + # to be generated as Linux can only handle one VXLAN tunnel when using + # external mode. + for intf in self._interfaces: + for option in self._options.get(intf, []): + self.cli_set(self._base_path + [intf] + option.split()) + with self.assertRaises(ConfigSessionError): + self.cli_commit() + + # Remove those test interfaces again + for intf in self._interfaces: + self.cli_delete(self._base_path + [intf]) + + self.cli_commit() + + options = get_interface_config(interface) + self.assertTrue(options['linkinfo']['info_data']['external']) + self.assertEqual('vxlan', options['linkinfo']['info_kind']) + if __name__ == '__main__': unittest.main(verbosity=2) diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py index 804f2d14f..b197d08a6 100755 --- a/src/conf_mode/interfaces-vxlan.py +++ b/src/conf_mode/interfaces-vxlan.py @@ -44,6 +44,20 @@ def get_config(config=None): base = ['interfaces', 'vxlan'] vxlan = get_interface_dict(conf, base) + # We need to verify that no other VXLAN tunnel is configured when external + # mode is in use - Linux Kernel limitation + conf.set_level(base) + vxlan['other_tunnels'] = conf.get_config_dict([], key_mangling=('-', '_'), + get_first_key=True, + no_tag_node_value_mangle=True) + + # This if-clause is just to be sure - it will always evaluate to true + ifname = vxlan['ifname'] + if ifname in vxlan['other_tunnels']: + del vxlan['other_tunnels'][ifname] + if len(vxlan['other_tunnels']) == 0: + del vxlan['other_tunnels'] + return vxlan def verify(vxlan): @@ -63,8 +77,14 @@ def verify(vxlan): if not any(tmp in ['group', 'remote', 'source_address'] for tmp in vxlan): raise ConfigError('Group, remote or source-address must be configured') - if 'vni' not in vxlan: - raise ConfigError('Must configure VNI for VXLAN') + if 'vni' not in vxlan and 'external' not in vxlan: + raise ConfigError( + 'Must either configure VXLAN "vni" or use "external" CLI option!') + + if {'external', 'other_tunnels'} <= set(vxlan): + other_tunnels = ', '.join(vxlan['other_tunnels']) + raise ConfigError(f'Only one VXLAN tunnel is supported when "external" '\ + f'CLI option is used. Additional tunnels: {other_tunnels}') if 'source_interface' in vxlan: # VXLAN adds at least an overhead of 50 byte - we need to check the |