OpenStack Networking (Neutron)
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# Copyright (c) 2014 OpenStack Foundation.
# All Rights Reserved.
# 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
# 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.
from oslo_log import log as logging
from neutron.agent.linux import utils as agent_utils
LOG = logging.getLogger(__name__)
# NOTE: Runtime checks are strongly discouraged in favor of sanity checks
# which would be run at system setup time. Please consider writing a
# sanity check instead.
def dhcp_release6_supported():
cmd = ['dhcp_release6', '--help']
env = {'LC_ALL': 'C'}
agent_utils.execute(cmd, addl_env=env)
except (OSError, RuntimeError, IndexError, ValueError) as e:
LOG.debug("Exception while checking dhcp_release6. "
"Exception: %s", e)
return False
return True