diff options
Diffstat (limited to 'src/conf_mode/vrf_vni.py')
| -rw-r--r--[-rwxr-xr-x] | src/conf_mode/vrf_vni.py | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/src/conf_mode/vrf_vni.py b/src/conf_mode/vrf_vni.py index 585fdbebf..a7424b517 100755..100644 --- a/src/conf_mode/vrf_vni.py +++ b/src/conf_mode/vrf_vni.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2020-2021 VyOS maintainers and contributors +# Copyright (C) 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 @@ -19,36 +19,75 @@ from sys import exit from vyos.config import Config from vyos.template import render_to_string +from vyos.util import dict_search from vyos import ConfigError from vyos import frr from vyos import airbag airbag.enable() -frr_daemon = 'zebra' - def get_config(config=None): if config: conf = config else: conf = Config() - base = ['vrf'] - vrf = conf.get_config_dict(base, get_first_key=True) + vrf_name = None + if len(argv) > 1: + vrf_name = argv[1] + else: + return None + + # Using duplicate L3VNIs makes no sense - it's also forbidden in FRR, + # thus VyOS CLI must deny this, too. Instead of getting only the dict for + # the requested VRF and den comparing it with depenent VRfs to not have any + # duplicate we will just grad ALL VRFs by default but only render/apply + # the configuration for the requested VRF - that makes the code easier and + # hopefully less error prone + vrf = conf.get_config_dict(['vrf'], key_mangling=('-', '_'), + no_tag_node_value_mangle=True, + get_first_key=True) + + # Store name of VRF we are interested in for FRR config rendering + vrf.update({'only_vrf' : vrf_name}) + return vrf def verify(vrf): + if not vrf: + return + + if len(argv) < 2: + raise ConfigError('VRF parameter not specified when valling vrf_vni.py') + + if 'name' in vrf: + vni_ids = [] + for name, vrf_config in vrf['name'].items(): + # VRF VNI (Virtual Network Identifier) must be unique on the system + if 'vni' in vrf_config: + if vrf_config['vni'] in vni_ids: + raise ConfigError(f'VRF "{name}" VNI is not unique!') + vni_ids.append(vrf_config['vni']) + return None def generate(vrf): - vrf['new_frr_config'] = render_to_string('frr/vrf-vni.frr.j2', vrf) + if not vrf: + return + + vrf['new_frr_config'] = render_to_string('frr/zebra.vrf.route-map.frr.j2', vrf) return None def apply(vrf): + frr_daemon = 'zebra' + # add configuration to FRR frr_cfg = frr.FRRConfig() frr_cfg.load_configuration(frr_daemon) - frr_cfg.modify_section(f'^vrf .+', stop_pattern='^exit-vrf', remove_stop_mark=True) - if 'new_frr_config' in vrf: + # There is only one VRF inside the dict as we read only one in get_config() + if vrf and 'name' in vrf: + vrf_name = vrf['only_vrf'] + frr_cfg.modify_section(f'^vrf {vrf_name}', stop_pattern='^exit-vrf', remove_stop_mark=True) + if vrf and 'new_frr_config' in vrf: frr_cfg.add_before(frr.default_add_before, vrf['new_frr_config']) frr_cfg.commit_configuration(frr_daemon) |