diff options
Diffstat (limited to 'src/conf_mode/interfaces-vxlan.py')
| -rwxr-xr-x | src/conf_mode/interfaces-vxlan.py | 24 |
1 files changed, 22 insertions, 2 deletions
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 |