diff options
| -rw-r--r-- | data/configd-include.json | 3 | ||||
| -rw-r--r-- | data/templates/frr/zebra.vrf.route-map.frr.j2 | 6 | ||||
| -rw-r--r-- | interface-definitions/vrf.xml.in | 15 | ||||
| -rwxr-xr-x | smoketest/scripts/cli/test_vrf.py | 55 | ||||
| -rwxr-xr-x | src/conf_mode/protocols_bgp.py | 46 | ||||
| -rwxr-xr-x | src/conf_mode/vrf.py | 5 | ||||
| -rw-r--r-- | src/conf_mode/vrf_vni.py | 103 |
7 files changed, 74 insertions, 159 deletions
diff --git a/data/configd-include.json b/data/configd-include.json index dc00f0698..0c767f987 100644 --- a/data/configd-include.json +++ b/data/configd-include.json @@ -108,6 +108,5 @@ "vpn_openconnect.py", "vpn_pptp.py", "vpn_sstp.py", -"vrf.py", -"vrf_vni.py" +"vrf.py" ] diff --git a/data/templates/frr/zebra.vrf.route-map.frr.j2 b/data/templates/frr/zebra.vrf.route-map.frr.j2 index f1cc6fe66..8ebb82511 100644 --- a/data/templates/frr/zebra.vrf.route-map.frr.j2 +++ b/data/templates/frr/zebra.vrf.route-map.frr.j2 @@ -1,10 +1,6 @@ ! {% if name is vyos_defined %} {% for vrf, vrf_config in name.items() %} -{# code path required for vrf_vni.py as we will only render the required VR configuration and not all of them #} -{% if only_vrf is vyos_defined and vrf is not vyos_defined(only_vrf) %} -{% continue %} -{% endif %} vrf {{ vrf }} {% if vrf_config.ip.nht.no_resolve_via_default is vyos_defined %} no ip nht resolve-via-default @@ -25,7 +21,7 @@ vrf {{ vrf }} ipv6 protocol {{ protocol_name }} route-map {{ protocol_config.route_map }} {% endfor %} {% endif %} -{% if vrf_config.vni is vyos_defined and no_vni is not vyos_defined %} +{% if vrf_config.vni is vyos_defined %} vni {{ vrf_config.vni }} {% endif %} exit-vrf diff --git a/interface-definitions/vrf.xml.in b/interface-definitions/vrf.xml.in index 94ed96e4b..a20be995a 100644 --- a/interface-definitions/vrf.xml.in +++ b/interface-definitions/vrf.xml.in @@ -120,20 +120,7 @@ <constraintErrorMessage>VRF routing table must be in range from 100 to 65535</constraintErrorMessage> </properties> </leafNode> - <leafNode name="vni" owner="${vyos_conf_scripts_dir}/vrf_vni.py $VAR(../@)"> - <properties> - <help>Virtual Network Identifier</help> - <!-- must be after BGP to keep correct order when removing L3VNIs in FRR --> - <priority>822</priority> - <valueHelp> - <format>u32:0-16777214</format> - <description>VXLAN virtual network identifier</description> - </valueHelp> - <constraint> - <validator name="numeric" argument="--range 0-16777214"/> - </constraint> - </properties> - </leafNode> + #include <include/vni.xml.i> </children> </tagNode> </children> diff --git a/smoketest/scripts/cli/test_vrf.py b/smoketest/scripts/cli/test_vrf.py index f6e4181c0..243397dc2 100755 --- a/smoketest/scripts/cli/test_vrf.py +++ b/smoketest/scripts/cli/test_vrf.py @@ -18,7 +18,6 @@ import re import os import unittest -from netifaces import interfaces from base_vyostest_shim import VyOSUnitTestSHIM from vyos.configsession import ConfigSessionError @@ -27,6 +26,7 @@ from vyos.ifconfig import Section from vyos.utils.file import read_file from vyos.utils.network import get_interface_config from vyos.utils.network import is_intf_addr_assigned +from vyos.utils.network import interface_exists from vyos.utils.system import sysctl_read base_path = ['vrf'] @@ -60,7 +60,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): self.cli_delete(base_path) self.cli_commit() for vrf in vrfs: - self.assertNotIn(vrf, interfaces()) + self.assertFalse(interface_exists(vrf)) def test_vrf_vni_and_table_id(self): base_table = '1000' @@ -89,7 +89,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): iproute2_config = read_file('/etc/iproute2/rt_tables.d/vyos-vrf.conf') for vrf in vrfs: description = f'VyOS-VRF-{vrf}' - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) vrf_if = Interface(vrf) # validate proper interface description self.assertEqual(vrf_if.get_alias(), description) @@ -131,7 +131,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): loopbacks = ['127.0.0.1', '::1'] for vrf in vrfs: # Ensure VRF was created - self.assertIn(vrf, interfaces()) + self.assertTrue(interface_exists(vrf)) # Verify IP forwarding is 1 (enabled) self.assertEqual(sysctl_read(f'net.ipv4.conf.{vrf}.forwarding'), '1') self.assertEqual(sysctl_read(f'net.ipv6.conf.{vrf}.forwarding'), '1') @@ -171,7 +171,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): self.cli_commit() # Check if VRF has been created - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) table = str(int(table) + 1) self.cli_set(base + ['table', table]) @@ -228,7 +228,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): next_hop = f'192.0.{table}.1' prefix = f'10.0.{table}.0/24' - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) frrconfig = self.getFRRconfig(f'vrf {vrf}') self.assertIn(f' vni {table}', frrconfig) @@ -261,7 +261,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): # Apply VRF config self.cli_commit() # Ensure VRF got created - self.assertIn(vrf, interfaces()) + self.assertTrue(interface_exists(vrf)) # ... and IP addresses are still assigned for address in addresses: self.assertTrue(is_intf_addr_assigned(interface, address)) @@ -293,7 +293,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): loopbacks = ['127.0.0.1', '::1'] for vrf in vrfs: # Ensure VRF was created - self.assertIn(vrf, interfaces()) + self.assertTrue(interface_exists(vrf)) # Verify IP forwarding is 0 (disabled) self.assertEqual(sysctl_read(f'net.ipv4.conf.{vrf}.forwarding'), '0') self.assertEqual(sysctl_read(f'net.ipv6.conf.{vrf}.forwarding'), '0') @@ -425,7 +425,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): # Verify VRF configuration table = base_table for vrf in vrfs: - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) frrconfig = self.getFRRconfig(f'vrf {vrf}') self.assertIn(f' vni {table}', frrconfig) @@ -447,7 +447,7 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): # Verify VRF configuration table = base_table for vrf in vrfs: - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) frrconfig = self.getFRRconfig(f'vrf {vrf}') self.assertIn(f' vni {table}', frrconfig) @@ -470,13 +470,39 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): # Verify VRF configuration table = base_table for vrf in vrfs: - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) frrconfig = self.getFRRconfig(f'vrf {vrf}') self.assertIn(f' vni {table}', frrconfig) # Increment table ID for the next run table = str(int(table) + 2) + + # add a new VRF with VNI - this must not delete any existing VRF/VNI + purple = 'purple' + table = str(int(table) + 10) + self.cli_set(base_path + ['name', purple, 'table', table]) + self.cli_set(base_path + ['name', purple, 'vni', table]) + + # commit changes + self.cli_commit() + + # Verify VRF configuration + table = base_table + for vrf in vrfs: + self.assertTrue(interface_exists(vrf)) + + frrconfig = self.getFRRconfig(f'vrf {vrf}') + self.assertIn(f' vni {table}', frrconfig) + # Increment table ID for the next run + table = str(int(table) + 2) + + # Verify purple VRF/VNI + self.assertTrue(interface_exists(purple)) + table = str(int(table) + 10) + frrconfig = self.getFRRconfig(f'vrf {purple}') + self.assertIn(f' vni {table}', frrconfig) + # Now delete all the VNIs for vrf in vrfs: base = base_path + ['name', vrf] @@ -487,11 +513,16 @@ class VRFTest(VyOSUnitTestSHIM.TestCase): # Verify no VNI is defined for vrf in vrfs: - self.assertTrue(vrf in interfaces()) + self.assertTrue(interface_exists(vrf)) frrconfig = self.getFRRconfig(f'vrf {vrf}') self.assertNotIn('vni', frrconfig) + # Verify purple VNI remains + self.assertTrue(interface_exists(purple)) + frrconfig = self.getFRRconfig(f'vrf {purple}') + self.assertIn(f' vni {table}', frrconfig) + def test_vrf_ip_ipv6_nht(self): table = '6910' diff --git a/src/conf_mode/protocols_bgp.py b/src/conf_mode/protocols_bgp.py index 4df97d133..44409c0e3 100755 --- a/src/conf_mode/protocols_bgp.py +++ b/src/conf_mode/protocols_bgp.py @@ -31,6 +31,7 @@ from vyos.utils.dict import dict_search from vyos.utils.network import get_interface_vrf from vyos.utils.network import is_addr_assigned from vyos.utils.process import process_named_running +from vyos.utils.process import call from vyos import ConfigError from vyos import frr from vyos import airbag @@ -50,13 +51,8 @@ def get_config(config=None): # eqivalent of the C foo ? 'a' : 'b' statement base = vrf and ['vrf', 'name', vrf, 'protocols', 'bgp'] or base_path - bgp = conf.get_config_dict( - base, - key_mangling=('-', '_'), - get_first_key=True, - no_tag_node_value_mangle=True, - with_recursive_defaults=True, - ) + bgp = conf.get_config_dict(base, key_mangling=('-', '_'), + get_first_key=True, no_tag_node_value_mangle=True) bgp['dependent_vrfs'] = conf.get_config_dict(['vrf', 'name'], key_mangling=('-', '_'), @@ -75,22 +71,29 @@ def get_config(config=None): if vrf: bgp.update({'vrf' : vrf}) # We can not delete the BGP VRF instance if there is a L3VNI configured + # FRR L3VNI must be deleted first otherwise we will see error: + # "FRR error: Please unconfigure l3vni 3000" tmp = ['vrf', 'name', vrf, 'vni'] - if conf.exists(tmp): - bgp.update({'vni' : conf.return_value(tmp)}) + if conf.exists_effective(tmp): + bgp.update({'vni' : conf.return_effective_value(tmp)}) # We can safely delete ourself from the dependent vrf list if vrf in bgp['dependent_vrfs']: del bgp['dependent_vrfs'][vrf] - bgp['dependent_vrfs'].update({'default': {'protocols': { - 'bgp': conf.get_config_dict(base_path, key_mangling=('-', '_'), - get_first_key=True, - no_tag_node_value_mangle=True)}}}) + bgp['dependent_vrfs'].update({'default': {'protocols': { + 'bgp': conf.get_config_dict(base_path, key_mangling=('-', '_'), + get_first_key=True, + no_tag_node_value_mangle=True)}}}) + if not conf.exists(base): # If bgp instance is deleted then mark it bgp.update({'deleted' : ''}) return bgp + # We have gathered the dict representation of the CLI, but there are default + # options which we need to update into the dictionary retrived. + bgp = conf.merge_defaults(bgp, recursive=True) + # We also need some additional information from the config, prefix-lists # and route-maps for instance. They will be used in verify(). # @@ -242,10 +245,6 @@ def verify(bgp): if verify_vrf_as_import(bgp['vrf'], tmp_afi, bgp['dependent_vrfs']): raise ConfigError(f'Cannot delete VRF instance "{bgp["vrf"]}", ' \ 'unconfigure "import vrf" commands!') - # We can not delete the BGP instance if a L3VNI instance exists - if 'vni' in bgp: - raise ConfigError(f'Cannot delete VRF instance "{bgp["vrf"]}", ' \ - f'unconfigure VNI "{bgp["vni"]}" first!') else: # We are running in the default VRF context, thus we can not delete # our main BGP instance if there are dependent BGP VRF instances. @@ -254,7 +253,11 @@ def verify(bgp): if vrf != 'default': if dict_search('protocols.bgp', vrf_options): raise ConfigError('Cannot delete default BGP instance, ' \ - 'dependent VRF instance(s) exist!') + 'dependent VRF instance(s) exist(s)!') + if 'vni' in vrf_options: + raise ConfigError('Cannot delete default BGP instance, ' \ + 'dependent L3VNI exists!') + return None if 'system_as' not in bgp: @@ -607,6 +610,13 @@ def generate(bgp): return None def apply(bgp): + if 'deleted' in bgp: + # We need to ensure that the L3VNI is deleted first. + # This is not possible with old config backend + # priority bug + if {'vrf', 'vni'} <= set(bgp): + call('vtysh -c "conf t" -c "vrf {vrf}" -c "no vni {vni}"'.format(**bgp)) + bgp_daemon = 'bgpd' # Save original configuration prior to starting any commit actions diff --git a/src/conf_mode/vrf.py b/src/conf_mode/vrf.py index 587309005..8d8c234c0 100755 --- a/src/conf_mode/vrf.py +++ b/src/conf_mode/vrf.py @@ -130,11 +130,6 @@ def get_config(config=None): tmp = {'policy' : {'route-map' : conf.get_config_dict(['policy', 'route-map'], get_first_key=True)}} - # L3VNI setup is done via vrf_vni.py as it must be de-configured (on node - # deletetion prior to the BGP process. Tell the Jinja2 template no VNI - # setup is needed - vrf.update({'no_vni' : ''}) - # Merge policy dict into "regular" config dict vrf = dict_merge(tmp, vrf) return vrf diff --git a/src/conf_mode/vrf_vni.py b/src/conf_mode/vrf_vni.py deleted file mode 100644 index 8dab164d7..000000000 --- a/src/conf_mode/vrf_vni.py +++ /dev/null @@ -1,103 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2023-2024 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 -# published by the Free Software Foundation. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. - -from sys import argv -from sys import exit - -from vyos.config import Config -from vyos.template import render_to_string -from vyos import ConfigError -from vyos import frr -from vyos import airbag -airbag.enable() - -def get_config(config=None): - if config: - conf = config - else: - conf = Config() - - 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): - 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) - # There is only one VRF inside the dict as we read only one in get_config() - if vrf and 'only_vrf' 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) - - return None - -if __name__ == '__main__': - try: - c = get_config() - verify(c) - generate(c) - apply(c) - except ConfigError as e: - print(e) - exit(1) |