67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
#
|
|
# Copyright (c) 2022 Pim van Pelt
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at:
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
import logging
|
|
import config.lcp as lcp
|
|
import config.address as address
|
|
|
|
def get_loopbacks(yaml):
|
|
""" Return a list of all loopbacks. """
|
|
ret = []
|
|
if 'loopbacks' in yaml:
|
|
for ifname, iface in yaml['loopbacks'].items():
|
|
ret.append(ifname)
|
|
return ret
|
|
|
|
|
|
def get_by_name(yaml, ifname):
|
|
""" Return the loopback by name, if it exists. Return None otherwise. """
|
|
try:
|
|
if ifname in yaml['loopbacks']:
|
|
return ifname, yaml['loopbacks'][ifname]
|
|
except:
|
|
pass
|
|
return None, None
|
|
|
|
|
|
def is_loopback(yaml, ifname):
|
|
""" Returns True if the interface name is an existing loopback. """
|
|
ifname, iface = get_by_name(yaml, ifname)
|
|
return not iface == None
|
|
|
|
|
|
def validate_loopbacks(yaml):
|
|
result = True
|
|
msgs = []
|
|
logger = logging.getLogger('vppcfg.config')
|
|
logger.addHandler(logging.NullHandler())
|
|
|
|
if not 'loopbacks' in yaml:
|
|
return result, msgs
|
|
|
|
for ifname, iface in yaml['loopbacks'].items():
|
|
logger.debug("loopback %s" % iface)
|
|
if 'addresses' in iface and not 'lcp' in iface:
|
|
msgs.append("loopback %s has an address but no LCP" % ifname)
|
|
result = False
|
|
if 'lcp' in iface and not lcp.is_unique(yaml, iface['lcp']):
|
|
msgs.append("loopback %s does not have a unique LCP name %s" % (ifname, iface['lcp']))
|
|
result = False
|
|
if 'addresses' in iface:
|
|
for a in iface['addresses']:
|
|
if not address.is_allowed(yaml, ifname, iface['addresses'], a):
|
|
msgs.append("loopback %s IP address %s conflicts with another" % (ifname, a))
|
|
result = False
|
|
|
|
return result, msgs
|