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#!/usr/bin/env python3
#
# Copyright (C) 2021-2024 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 exit
from vyos.config import Config
from vyos.configverify import has_frr_protocol_in_dict
from vyos.configverify import verify_access_list
from vyos.configverify import verify_prefix_list
from vyos.frrender import FRRender
from vyos.frrender import get_frrender_dict
from vyos.utils.dict import dict_search
from vyos.utils.process import is_systemd_service_running
from vyos import ConfigError
from vyos import airbag
airbag.enable()
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
return get_frrender_dict(conf)
def verify(config_dict):
if not has_frr_protocol_in_dict(config_dict, 'babel'):
return None
babel = config_dict['babel']
babel['policy'] = config_dict['policy']
# verify distribute_list
if "distribute_list" in babel:
acl_keys = {
"ipv4": [
"distribute_list.ipv4.access_list.in",
"distribute_list.ipv4.access_list.out",
],
"ipv6": [
"distribute_list.ipv6.access_list.in",
"distribute_list.ipv6.access_list.out",
]
}
prefix_list_keys = {
"ipv4": [
"distribute_list.ipv4.prefix_list.in",
"distribute_list.ipv4.prefix_list.out",
],
"ipv6":[
"distribute_list.ipv6.prefix_list.in",
"distribute_list.ipv6.prefix_list.out",
]
}
for address_family in ["ipv4", "ipv6"]:
for iface_key in babel["distribute_list"].get(address_family, {}).get("interface", {}).keys():
acl_keys[address_family].extend([
f"distribute_list.{address_family}.interface.{iface_key}.access_list.in",
f"distribute_list.{address_family}.interface.{iface_key}.access_list.out"
])
prefix_list_keys[address_family].extend([
f"distribute_list.{address_family}.interface.{iface_key}.prefix_list.in",
f"distribute_list.{address_family}.interface.{iface_key}.prefix_list.out"
])
for address_family, keys in acl_keys.items():
for key in keys:
acl = dict_search(key, babel)
if acl:
verify_access_list(acl, babel, version='6' if address_family == 'ipv6' else '')
for address_family, keys in prefix_list_keys.items():
for key in keys:
prefix_list = dict_search(key, babel)
if prefix_list:
verify_prefix_list(prefix_list, babel, version='6' if address_family == 'ipv6' else '')
def generate(config_dict):
if config_dict and not is_systemd_service_running('vyos-configd.service'):
FRRender().generate(config_dict)
return None
def apply(config_dict):
if config_dict and not is_systemd_service_running('vyos-configd.service'):
FRRender().apply()
return None
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)
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