diff options
Diffstat (limited to 'src/conf_mode/vrf.py')
| -rwxr-xr-x | src/conf_mode/vrf.py | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/src/conf_mode/vrf.py b/src/conf_mode/vrf.py index 72b178c89..1eacba112 100755 --- a/src/conf_mode/vrf.py +++ b/src/conf_mode/vrf.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2020-2024 VyOS maintainers and contributors +# Copyright VyOS maintainers and contributors <maintainers@vyos.io> # # 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 @@ -18,24 +18,26 @@ from sys import exit from jmespath import search from json import loads +import vyos.defaults + from vyos.config import Config -from vyos.configdict import dict_merge from vyos.configdict import node_changed from vyos.configverify import verify_route_map from vyos.firewall import conntrack_required +from vyos.frrender import FRRender +from vyos.frrender import get_frrender_dict from vyos.ifconfig import Interface from vyos.template import render -from vyos.template import render_to_string from vyos.utils.dict import dict_search from vyos.utils.network import get_vrf_tableid from vyos.utils.network import get_vrf_members from vyos.utils.network import interface_exists from vyos.utils.process import call from vyos.utils.process import cmd +from vyos.utils.process import is_systemd_service_running from vyos.utils.process import popen from vyos.utils.system import sysctl_write from vyos import ConfigError -from vyos import frr from vyos import airbag airbag.enable() @@ -132,15 +134,9 @@ def get_config(config=None): if 'name' in vrf: vrf['conntrack'] = conntrack_required(conf) - # We also need the route-map information from the config - # - # XXX: one MUST always call this without the key_mangling() option! See - # vyos.configverify.verify_common_route_maps() for more information. - tmp = {'policy' : {'route-map' : conf.get_config_dict(['policy', 'route-map'], - get_first_key=True)}} - - # Merge policy dict into "regular" config dict - vrf = dict_merge(tmp, vrf) + # We need to merge the FRR rendering dict into the VRF dict + # this is required to get the route-map information to FRR + vrf.update({'frr_dict' : get_frrender_dict(conf)}) return vrf def verify(vrf): @@ -155,9 +151,11 @@ def verify(vrf): f'static routes installed!') if 'name' in vrf: - reserved_names = ["add", "all", "broadcast", "default", "delete", "dev", - "get", "inet", "mtu", "link", "type", "vrf"] + reserved_names = ['add', 'all', 'broadcast', 'default', 'delete', 'dev', + 'down', 'get', 'inet', 'link', 'mtu', 'type', 'up', 'vrf'] + table_ids = [] + vnis = [] for name, vrf_config in vrf['name'].items(): # Reserved VRF names if name in reserved_names: @@ -167,6 +165,11 @@ def verify(vrf): if 'table' not in vrf_config: raise ConfigError(f'VRF "{name}" table id is mandatory!') + if int(vrf_config['table']) == vyos.defaults.rt_global_vrf: + raise ConfigError( + f'VRF "{name}" table id {vrf_config["table"]} cannot be used!' + ) + # routing table id can't be changed - OS restriction if interface_exists(name): tmp = get_vrf_tableid(name) @@ -178,17 +181,24 @@ def verify(vrf): raise ConfigError(f'VRF "{name}" table id is not unique!') table_ids.append(vrf_config['table']) + # VRF VNIs must be unique on the system + if 'vni' in vrf_config: + vni = vrf_config['vni'] + if vni in vnis: + raise ConfigError(f'VRF "{name}" VNI "{vni}" is not unique!') + vnis.append(vni) + tmp = dict_search('ip.protocol', vrf_config) if tmp != None: for protocol, protocol_options in tmp.items(): if 'route_map' in protocol_options: - verify_route_map(protocol_options['route_map'], vrf) + verify_route_map(protocol_options['route_map'], vrf['frr_dict']) tmp = dict_search('ipv6.protocol', vrf_config) if tmp != None: for protocol, protocol_options in tmp.items(): if 'route_map' in protocol_options: - verify_route_map(protocol_options['route_map'], vrf) + verify_route_map(protocol_options['route_map'], vrf['frr_dict']) return None @@ -196,8 +206,9 @@ def verify(vrf): def generate(vrf): # Render iproute2 VR helper names render(config_file, 'iproute2/vrf.conf.j2', vrf) - # Render VRF Kernel/Zebra route-map filters - vrf['frr_zebra_config'] = render_to_string('frr/zebra.vrf.route-map.frr.j2', vrf) + + if 'frr_dict' in vrf and not is_systemd_service_running('vyos-configd.service'): + FRRender().generate(vrf['frr_dict']) return None @@ -229,7 +240,7 @@ def apply(vrf): vrf_iface.set_dhcpv6(False) # Remove nftables conntrack zone map item - nft_del_element = f'delete element inet vrf_zones ct_iface_map {{ "{tmp}" }}' + nft_del_element = f'delete element inet vrf_zones ct_iface_map {{ \'"{tmp}"\' }}' # Check if deleting is possible first to avoid raising errors _, err = popen(f'nft --check {nft_del_element}') if not err: @@ -309,7 +320,7 @@ def apply(vrf): state = 'down' if 'disable' in config else 'up' vrf_if.set_admin_state(state) # Add nftables conntrack zone map item - nft_add_element = f'add element inet vrf_zones ct_iface_map {{ "{name}" : {table} }}' + nft_add_element = f'add element inet vrf_zones ct_iface_map {{ \'"{name}"\' : {table} }}' cmd(f'nft {nft_add_element}') # Only call into nftables as long as there is nothing setup to avoid wasting @@ -339,17 +350,8 @@ def apply(vrf): if has_rule(afi, 2000, 'l3mdev'): call(f'ip {afi} rule del pref 2000 l3mdev unreachable') - # Apply FRR filters - zebra_daemon = 'zebra' - # Save original configuration prior to starting any commit actions - frr_cfg = frr.FRRConfig() - - # The route-map used for the FIB (zebra) is part of the zebra daemon - frr_cfg.load_configuration(zebra_daemon) - frr_cfg.modify_section(f'^vrf .+', stop_pattern='^exit-vrf', remove_stop_mark=True) - if 'frr_zebra_config' in vrf: - frr_cfg.add_before(frr.default_add_before, vrf['frr_zebra_config']) - frr_cfg.commit_configuration(zebra_daemon) + if 'frr_dict' in vrf and not is_systemd_service_running('vyos-configd.service'): + FRRender().apply() return None |