diff options
Diffstat (limited to 'src/conf_mode')
| -rwxr-xr-x | src/conf_mode/protocols_pim6.py | 102 | ||||
| -rwxr-xr-x | src/conf_mode/system_frr.py | 25 |
2 files changed, 110 insertions, 17 deletions
diff --git a/src/conf_mode/protocols_pim6.py b/src/conf_mode/protocols_pim6.py new file mode 100755 index 000000000..6a1235ba5 --- /dev/null +++ b/src/conf_mode/protocols_pim6.py @@ -0,0 +1,102 @@ +#!/usr/bin/env python3 +# +# 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 +# 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 ipaddress import IPv6Address +from sys import exit +from typing import Optional + +from vyos import ConfigError, airbag, frr +from vyos.config import Config, ConfigDict +from vyos.configdict import node_changed +from vyos.configverify import verify_interface_exists +from vyos.template import render_to_string + +airbag.enable() + + +def get_config(config=None): + if config: + conf = config + else: + conf = Config() + base = ['protocols', 'pim6'] + pim6 = conf.get_config_dict(base, key_mangling=('-', '_'), + get_first_key=True, with_recursive_defaults=True) + + # FRR has VRF support for different routing daemons. As interfaces belong + # to VRFs - or the global VRF, we need to check for changed interfaces so + # that they will be properly rendered for the FRR config. Also this eases + # removal of interfaces from the running configuration. + interfaces_removed = node_changed(conf, base + ['interface']) + if interfaces_removed: + pim6['interface_removed'] = list(interfaces_removed) + + return pim6 + + +def verify(pim6): + if pim6 is None: + return + + for interface, interface_config in pim6.get('interface', {}).items(): + verify_interface_exists(interface) + if 'mld' in interface_config: + mld = interface_config['mld'] + for group in mld.get('join', {}).keys(): + # Validate multicast group address + if not IPv6Address(group).is_multicast: + raise ConfigError(f"{group} is not a multicast group") + + +def generate(pim6): + if pim6 is None: + return + + pim6['new_frr_config'] = render_to_string('frr/pim6d.frr.j2', pim6) + + +def apply(pim6): + if pim6 is None: + return + + pim6_daemon = 'pim6d' + + # Save original configuration prior to starting any commit actions + frr_cfg = frr.FRRConfig() + + frr_cfg.load_configuration(pim6_daemon) + + for key in ['interface', 'interface_removed']: + if key not in pim6: + continue + for interface in pim6[key]: + frr_cfg.modify_section( + f'^interface {interface}', stop_pattern='^exit', remove_stop_mark=True) + + if 'new_frr_config' in pim6: + frr_cfg.add_before(frr.default_add_before, pim6['new_frr_config']) + frr_cfg.commit_configuration(pim6_daemon) + + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + exit(1) diff --git a/src/conf_mode/system_frr.py b/src/conf_mode/system_frr.py index fb252238a..d8224b3c3 100755 --- a/src/conf_mode/system_frr.py +++ b/src/conf_mode/system_frr.py @@ -22,17 +22,14 @@ from vyos import airbag from vyos.config import Config from vyos.logger import syslog from vyos.template import render_to_string +from vyos.utils.boot import boot_configuration_complete from vyos.utils.file import read_file from vyos.utils.file import write_file -from vyos.utils.process import run +from vyos.utils.process import call airbag.enable() # path to daemons config and config status files config_file = '/etc/frr/daemons' -vyos_status_file = '/tmp/vyos-config-status' -# path to watchfrr for FRR control -watchfrr = '/usr/lib/frr/watchfrr.sh' - def get_config(config=None): if config: @@ -45,12 +42,10 @@ def get_config(config=None): return frr_config - def verify(frr_config): # Nothing to verify here pass - def generate(frr_config): # read daemons config file daemons_config_current = read_file(config_file) @@ -62,25 +57,21 @@ def generate(frr_config): write_file(config_file, daemons_config_new) frr_config['config_file_changed'] = True - def apply(frr_config): - # check if this is initial commit during boot or intiated by CLI - # if the file exists, this must be CLI commit - commit_type_cli = Path(vyos_status_file).exists() # display warning to user - if commit_type_cli and frr_config.get('config_file_changed'): + if boot_configuration_complete() and frr_config.get('config_file_changed'): # Since FRR restart is not safe thing, better to give # control over this to users print(''' You need to reboot a router (preferred) or restart FRR to apply changes in modules settings ''') - # restart FRR automatically. DUring the initial boot this should be - # safe in most cases - if not commit_type_cli and frr_config.get('config_file_changed'): - syslog.warning('Restarting FRR to apply changes in modules') - run(f'{watchfrr} restart') + # restart FRR automatically + # During initial boot this should be safe in most cases + if not boot_configuration_complete() and frr_config.get('config_file_changed'): + syslog.warning('Restarting FRR to apply changes in modules') + call(f'systemctl restart frr.service') if __name__ == '__main__': try: |