diff options
Diffstat (limited to 'src')
| -rwxr-xr-x | src/conf_mode/protocols_pim6.py | 57 |
1 files changed, 44 insertions, 13 deletions
diff --git a/src/conf_mode/protocols_pim6.py b/src/conf_mode/protocols_pim6.py index 6a1235ba5..2003a1014 100755 --- a/src/conf_mode/protocols_pim6.py +++ b/src/conf_mode/protocols_pim6.py @@ -15,18 +15,19 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. from ipaddress import IPv6Address +from ipaddress import IPv6Network from sys import exit -from typing import Optional -from vyos import ConfigError, airbag, frr -from vyos.config import Config, ConfigDict +from vyos.config import Config +from vyos.config import config_dict_merge from vyos.configdict import node_changed from vyos.configverify import verify_interface_exists 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 @@ -44,11 +45,21 @@ def get_config(config=None): if interfaces_removed: pim6['interface_removed'] = list(interfaces_removed) - return pim6 + # Bail out early if configuration tree does no longer exist. this must + # be done after retrieving the list of interfaces to be removed. + if not conf.exists(base): + pim6.update({'deleted' : ''}) + return pim6 + # We have gathered the dict representation of the CLI, but there are default + # options which we need to update into the dictionary retrived. + default_values = conf.get_config_defaults(**pim6.kwargs, recursive=True) + + pim6 = config_dict_merge(default_values, pim6) + return pim6 def verify(pim6): - if pim6 is None: + if not pim6 or 'deleted' in pim6: return for interface, interface_config in pim6.get('interface', {}).items(): @@ -60,13 +71,34 @@ def verify(pim6): if not IPv6Address(group).is_multicast: raise ConfigError(f"{group} is not a multicast group") + if 'rp' in pim6: + if 'address' not in pim6['rp']: + raise ConfigError('PIM6 rendezvous point needs to be defined!') + + # Check unique multicast groups + unique = [] + pim_base_error = 'PIM6 rendezvous point group' + + if {'address', 'prefix-list6'} <= set(pim6['rp']): + raise ConfigError(f'{pim_base_error} supports either address or a prefix-list!') + + for address, address_config in pim6['rp']['address'].items(): + if 'group' not in address_config: + raise ConfigError(f'{pim_base_error} should be defined for "{address}"!') + + # Check if it is a multicast group + for gr_addr in address_config['group']: + if not IPv6Network(gr_addr).is_multicast: + raise ConfigError(f'{pim_base_error} "{gr_addr}" is not a multicast group!') + if gr_addr in unique: + raise ConfigError(f'{pim_base_error} must be unique!') + unique.append(gr_addr) def generate(pim6): - if pim6 is None: + if not pim6 or 'deleted' in pim6: return - pim6['new_frr_config'] = render_to_string('frr/pim6d.frr.j2', pim6) - + return None def apply(pim6): if pim6 is None: @@ -83,13 +115,12 @@ def apply(pim6): 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) + 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) - + return None if __name__ == '__main__': try: |