diff options
Diffstat (limited to 'src/conf_mode/interfaces-vxlan.py')
| -rwxr-xr-x | src/conf_mode/interfaces-vxlan.py | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py index 6bf3227d5..4251e611b 100755 --- a/src/conf_mode/interfaces-vxlan.py +++ b/src/conf_mode/interfaces-vxlan.py @@ -60,8 +60,14 @@ def get_config(config=None): vxlan.update({'rebuild_required': {}}) break + # When dealing with VNI filtering we need to know what VNI was actually removed, + # so build up a dict matching the vlan_to_vni structure but with removed values. tmp = node_changed(conf, base + [ifname, 'vlan-to-vni'], recursive=True) - if tmp: vxlan.update({'vlan_to_vni_removed': tmp}) + if tmp: + vxlan.update({'vlan_to_vni_removed': {}}) + for vlan in tmp: + vni = leaf_node_changed(conf, base + [ifname, 'vlan-to-vni', vlan, 'vni']) + vxlan['vlan_to_vni_removed'].update({vlan : {'vni' : vni[0]}}) # We need to verify that no other VXLAN tunnel is configured when external # mode is in use - Linux Kernel limitation @@ -98,14 +104,31 @@ def verify(vxlan): if 'vni' not in vxlan and dict_search('parameters.external', vxlan) == None: raise ConfigError('Must either configure VXLAN "vni" or use "external" CLI option!') - if dict_search('parameters.external', vxlan): + if dict_search('parameters.external', vxlan) != None: if 'vni' in vxlan: raise ConfigError('Can not specify both "external" and "VNI"!') if 'other_tunnels' in 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}') + # When multiple VXLAN interfaces are defined and "external" is used, + # all VXLAN interfaces need to have vni-filter enabled! + # See Linux Kernel commit f9c4bb0b245cee35ef66f75bf409c9573d934cf9 + other_vni_filter = False + for tunnel, tunnel_config in vxlan['other_tunnels'].items(): + if dict_search('parameters.vni_filter', tunnel_config) != None: + other_vni_filter = True + break + # eqivalent of the C foo ? 'a' : 'b' statement + vni_filter = True and (dict_search('parameters.vni_filter', vxlan) != None) or False + # If either one is enabled, so must be the other. Both can be off and both can be on + if (vni_filter and not other_vni_filter) or (not vni_filter and other_vni_filter): + raise ConfigError(f'Using multiple VXLAN interfaces with "external" '\ + 'requires all VXLAN interfaces to have "vni-filter" configured!') + + if not vni_filter and not other_vni_filter: + other_tunnels = ', '.join(vxlan['other_tunnels']) + raise ConfigError(f'Only one VXLAN tunnel is supported when "external" '\ + f'CLI option is used and "vni-filter" is unset. '\ + f'Additional tunnels: {other_tunnels}') if 'gpe' in vxlan and 'external' not in vxlan: raise ConfigError(f'VXLAN-GPE is only supported when "external" '\ @@ -165,7 +188,7 @@ def verify(vxlan): raise ConfigError(f'VNI "{vni}" is already assigned to a different VLAN!') vnis_used.append(vni) - if dict_search('parameters.neighbor_suppress', vxlan): + if dict_search('parameters.neighbor_suppress', vxlan) != None: if 'is_bridge_member' not in vxlan: raise ConfigError('Neighbor suppression requires that VXLAN interface '\ 'is member of a bridge interface!') |