neutron/neutron/privileged/agent/linux/dhcp.py

49 lines
1.8 KiB
Python

# 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.
from oslo_concurrency import processutils
from neutron import privileged
@privileged.dhcp_release_cmd.entrypoint
def dhcp_release(interface_name, ip_address, mac_address, client_id,
namespace=None):
cmd = []
if namespace:
cmd += ['ip', 'netns', 'exec', namespace]
cmd += ['dhcp_release', interface_name, ip_address, mac_address]
if client_id:
cmd.append(client_id)
log_errors = processutils.LOG_FINAL_ERROR
return processutils.execute(*cmd, log_errors=log_errors)
@privileged.dhcp_release_cmd.entrypoint
def dhcp_release6(interface_name, ip_address, client_id, server_id, iaid,
namespace=None):
cmd = []
if namespace:
cmd += ['ip', 'netns', 'exec', namespace]
cmd += ['dhcp_release6', '--iface', interface_name, '--ip', ip_address,
'--client-id', client_id, '--server-id', server_id, '--iaid', iaid]
log_errors = processutils.LOG_FINAL_ERROR
return processutils.execute(*cmd, log_errors=log_errors)
@privileged.dhcp_release_cmd.entrypoint
def dhcp_release6_supported():
cmd = ['dhcp_release6', '--help']
result = processutils.execute(*cmd, check_exit_code=False,
env_variables={'LC_ALL': 'C'})
return not bool(result[1])