diff options
| -rw-r--r-- | interface-definitions/interfaces-vxlan.xml.in | 16 | ||||
| -rw-r--r-- | python/vyos/ifconfig/vxlan.py | 66 | ||||
| -rw-r--r-- | python/vyos/utils/network.py | 45 | ||||
| -rw-r--r-- | python/vyos/utils/process.py | 2 | ||||
| -rwxr-xr-x | smoketest/scripts/cli/test_interfaces_vxlan.py | 50 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces-vxlan.py | 20 |
6 files changed, 195 insertions, 4 deletions
diff --git a/interface-definitions/interfaces-vxlan.xml.in b/interface-definitions/interfaces-vxlan.xml.in index fb60c93d0..b246d9a09 100644 --- a/interface-definitions/interfaces-vxlan.xml.in +++ b/interface-definitions/interfaces-vxlan.xml.in @@ -101,6 +101,22 @@ #include <include/interface/redirect.xml.i> #include <include/interface/vrf.xml.i> #include <include/vni.xml.i> + <tagNode name="vlan-to-vni"> + <properties> + <help>Configuring VLAN-to-VNI mappings for EVPN-VXLAN</help> + <valueHelp> + <format>u32:0-4094</format> + <description>Virtual Local Area Network (VLAN) ID</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 0-4094"/> + </constraint> + <constraintErrorMessage>VLAN ID must be between 0 and 4094</constraintErrorMessage> + </properties> + <children> + #include <include/vni.xml.i> + </children> + </tagNode> </children> </tagNode> </children> diff --git a/python/vyos/ifconfig/vxlan.py b/python/vyos/ifconfig/vxlan.py index 6a9911588..1fe5db7cd 100644 --- a/python/vyos/ifconfig/vxlan.py +++ b/python/vyos/ifconfig/vxlan.py @@ -1,4 +1,4 @@ -# Copyright 2019-2022 VyOS maintainers and contributors <maintainers@vyos.io> +# Copyright 2019-2023 VyOS maintainers and contributors <maintainers@vyos.io> # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public @@ -13,9 +13,15 @@ # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. +from json import loads + from vyos import ConfigError +from vyos.configdict import list_diff from vyos.ifconfig import Interface +from vyos.utils.assertion import assert_list from vyos.utils.dict import dict_search +from vyos.utils.network import get_interface_config +from vyos.utils.network import get_vxlan_vlan_tunnels @Interface.register class VXLANIf(Interface): @@ -49,6 +55,13 @@ class VXLANIf(Interface): } } + _command_set = {**Interface._command_set, **{ + 'vlan_tunnel': { + 'validate': lambda v: assert_list(v, ['on', 'off']), + 'shellcmd': 'bridge link set dev {ifname} vlan_tunnel {value}', + }, + }} + def _create(self): # This table represents a mapping from VyOS internal config dict to # arguments used by iproute2. For more information please refer to: @@ -99,3 +112,54 @@ class VXLANIf(Interface): cmd = f'bridge fdb append to 00:00:00:00:00:00 dst {remote} ' \ 'port {port} dev {ifname}' self._cmd(cmd.format(**self.config)) + + def set_vlan_vni_mapping(self, state): + """ + Controls whether vlan to tunnel mapping is enabled on the port. + By default this flag is off. + """ + if not isinstance(state, bool): + raise ValueError('Value out of range') + + cur_vlan_ids = [] + if 'vlan_to_vni_removed' in self.config: + cur_vlan_ids = self.config['vlan_to_vni_removed'] + for vlan in cur_vlan_ids: + self._cmd(f'bridge vlan del dev {self.ifname} vid {vlan}') + + # Determine current OS Kernel vlan_tunnel setting - only adjust when needed + tmp = get_interface_config(self.ifname) + cur_state = 'on' if dict_search(f'linkinfo.info_slave_data.vlan_tunnel', tmp) == True else 'off' + new_state = 'on' if state else 'off' + if cur_state != new_state: + self.set_interface('vlan_tunnel', new_state) + + # Determine current OS Kernel configured VLANs + os_configured_vlan_ids = get_vxlan_vlan_tunnels(self.ifname) + + if 'vlan_to_vni' in self.config: + add_vlan = list_diff(list(self.config['vlan_to_vni'].keys()), os_configured_vlan_ids) + + for vlan, vlan_config in self.config['vlan_to_vni'].items(): + # VLAN mapping already exists - skip + if vlan not in add_vlan: + continue + + vni = vlan_config['vni'] + # The following commands must be run one after another, + # they can not be combined with linux 6.1 and iproute2 6.1 + self._cmd(f'bridge vlan add dev {self.ifname} vid {vlan}') + self._cmd(f'bridge vlan add dev {self.ifname} vid {vlan} tunnel_info id {vni}') + + def update(self, config): + """ General helper function which works on a dictionary retrived by + get_config_dict(). It's main intention is to consolidate the scattered + interface setup code and provide a single point of entry when workin + on any interface. """ + + # call base class last + super().update(config) + + # Enable/Disable VLAN tunnel mapping + # This is only possible after the interface was assigned to the bridge + self.set_vlan_vni_mapping(dict_search('vlan_to_vni', config) != None) diff --git a/python/vyos/utils/network.py b/python/vyos/utils/network.py index bc6899e45..c96ee4eed 100644 --- a/python/vyos/utils/network.py +++ b/python/vyos/utils/network.py @@ -429,7 +429,7 @@ def is_subnet_connected(subnet, primary=False): return False -def is_afi_configured(interface, afi): +def is_afi_configured(interface: str, afi): """ Check if given address family is configured, or in other words - an IP address is assigned to the interface. """ from netifaces import ifaddresses @@ -446,3 +446,46 @@ def is_afi_configured(interface, afi): return False return afi in addresses + +def get_vxlan_vlan_tunnels(interface: str) -> list: + """ Return a list of strings with VLAN IDs configured in the Kernel """ + from json import loads + from vyos.utils.process import cmd + + if not interface.startswith('vxlan'): + raise ValueError('Only applicable for VXLAN interfaces!') + + # Determine current OS Kernel configured VLANs + # + # $ bridge -j -p vlan tunnelshow dev vxlan0 + # [ { + # "ifname": "vxlan0", + # "tunnels": [ { + # "vlan": 10, + # "vlanEnd": 11, + # "tunid": 10010, + # "tunidEnd": 10011 + # },{ + # "vlan": 20, + # "tunid": 10020 + # } ] + # } ] + # + os_configured_vlan_ids = [] + tmp = loads(cmd(f'bridge --json vlan tunnelshow dev {interface}')) + if tmp: + for tunnel in tmp[0].get('tunnels', {}): + vlanStart = tunnel['vlan'] + if 'vlanEnd' in tunnel: + vlanEnd = tunnel['vlanEnd'] + # Build a real list for user VLAN IDs + vlan_list = list(range(vlanStart, vlanEnd +1)) + # Convert list of integers to list or strings + os_configured_vlan_ids.extend(map(str, vlan_list)) + # Proceed with next tunnel - this one is complete + continue + + # Add single tunel id - not part of a range + os_configured_vlan_ids.append(str(vlanStart)) + + return os_configured_vlan_ids diff --git a/python/vyos/utils/process.py b/python/vyos/utils/process.py index e09c7d86d..1c861815e 100644 --- a/python/vyos/utils/process.py +++ b/python/vyos/utils/process.py @@ -139,7 +139,7 @@ def cmd(command, flag='', shell=None, input=None, timeout=None, env=None, expect: a list of error codes to consider as normal """ decoded, code = popen( - command, flag, + command.lstrip(), flag, stdout=stdout, stderr=stderr, input=input, timeout=timeout, env=env, shell=shell, diff --git a/smoketest/scripts/cli/test_interfaces_vxlan.py b/smoketest/scripts/cli/test_interfaces_vxlan.py index f6b203de4..e9c9e68fd 100755 --- a/smoketest/scripts/cli/test_interfaces_vxlan.py +++ b/smoketest/scripts/cli/test_interfaces_vxlan.py @@ -20,6 +20,8 @@ from vyos.configsession import ConfigSessionError from vyos.ifconfig import Interface from vyos.utils.network import get_bridge_fdb from vyos.utils.network import get_interface_config +from vyos.utils.network import interface_exists +from vyos.utils.network import get_vxlan_vlan_tunnels from vyos.template import is_ipv6 from base_interfaces_test import BasicInterfaceTest @@ -133,5 +135,53 @@ class VXLANInterfaceTest(BasicInterfaceTest.TestCase): self.assertTrue(options['linkinfo']['info_data']['external']) self.assertEqual('vxlan', options['linkinfo']['info_kind']) + def test_vxlan_vlan_vni_mapping(self): + bridge = 'br0' + interface = 'vxlan0' + source_interface = 'eth0' + + vlan_to_vni = { + '10': '10010', + '11': '10011', + '12': '10012', + '13': '10013', + '20': '10020', + '30': '10030', + '31': '10031', + } + + self.cli_set(self._base_path + [interface, 'external']) + self.cli_set(self._base_path + [interface, 'source-interface', source_interface]) + + for vlan, vni in vlan_to_vni.items(): + self.cli_set(self._base_path + [interface, 'vlan-to-vni', vlan, 'vni', vni]) + + # This must fail as this VXLAN interface is not associated with any bridge + with self.assertRaises(ConfigSessionError): + self.cli_commit() + self.cli_set(['interfaces', 'bridge', bridge, 'member', 'interface', interface]) + + # It is not allowed to use duplicate VNIs + self.cli_set(self._base_path + [interface, 'vlan-to-vni', '11', 'vni', vlan_to_vni['10']]) + with self.assertRaises(ConfigSessionError): + self.cli_commit() + # restore VLAN - VNI mappings + for vlan, vni in vlan_to_vni.items(): + self.cli_set(self._base_path + [interface, 'vlan-to-vni', vlan, 'vni', vni]) + + # commit configuration + self.cli_commit() + + self.assertTrue(interface_exists(bridge)) + self.assertTrue(interface_exists(interface)) + + tmp = get_interface_config(interface) + self.assertEqual(tmp['master'], bridge) + + tmp = get_vxlan_vlan_tunnels('vxlan0') + self.assertEqual(tmp, list(vlan_to_vni)) + + self.cli_delete(['interfaces', 'bridge', bridge]) + if __name__ == '__main__': unittest.main(verbosity=2) diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py index a3b0867e0..05f68112a 100755 --- a/src/conf_mode/interfaces-vxlan.py +++ b/src/conf_mode/interfaces-vxlan.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2019-2022 VyOS maintainers and contributors +# Copyright (C) 2019-2023 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as @@ -24,6 +24,7 @@ from vyos.config import Config from vyos.configdict import get_interface_dict from vyos.configdict import leaf_node_changed from vyos.configdict import is_node_changed +from vyos.configdict import node_changed from vyos.configverify import verify_address from vyos.configverify import verify_bridge_delete from vyos.configverify import verify_mtu_ipv6 @@ -58,6 +59,9 @@ def get_config(config=None): vxlan.update({'rebuild_required': {}}) break + tmp = node_changed(conf, base + [ifname, 'vlan-to-vni'], recursive=True) + if tmp: vxlan.update({'vlan_to_vni_removed': tmp}) + # We need to verify that no other VXLAN tunnel is configured when external # mode is in use - Linux Kernel limitation conf.set_level(base) @@ -146,6 +150,20 @@ def verify(vxlan): raise ConfigError(error_msg) protocol = 'ipv4' + if 'vlan_to_vni' in vxlan: + if 'is_bridge_member' not in vxlan: + raise ConfigError('VLAN to VNI mapping requires that VXLAN interface '\ + 'is member of a bridge interface!') + + vnis_used = [] + for vif, vif_config in vxlan['vlan_to_vni'].items(): + if 'vni' not in vif_config: + raise ConfigError(f'Must define VNI for VLAN "{vif}"!') + vni = vif_config['vni'] + if vni in vnis_used: + raise ConfigError(f'VNI "{vni}" is already assigned to a different VLAN!') + vnis_used.append(vni) + verify_mtu_ipv6(vxlan) verify_address(vxlan) verify_bond_bridge_member(vxlan) |