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# Copyright 2015 Mellanox Technologies, Ltd
#
# 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 neutron_lib.api.definitions import extra_dhcp_opt as edo_ext
from neutron.agent.linux import dhcp
class DhcpOpt(object):
def __init__(self, **kwargs):
self.__dict__.update(ip_version=4)
self.__dict__.update(kwargs)
def __str__(self):
return str(self.__dict__)
class MlnxDnsmasq(dhcp.Dnsmasq):
_PREFIX = 'ff:00:00:00:00:00:02:00:00:02:c9:00:'
_MIDDLE = ':00:00:'
def _gen_client_id(self, port):
mac_address = port.mac_address
mac_first = mac_address[:8]
mac_last = mac_address[9:]
client_id = ''.join([self._PREFIX, mac_first, self._MIDDLE, mac_last])
return client_id
def _gen_client_id_opt(self, client_id):
return DhcpOpt(opt_name=edo_ext.DHCP_OPT_CLIENT_ID,
opt_value=client_id)
def _get_port_extra_dhcp_opts(self, port):
client_id = self._gen_client_id(port)
if hasattr(port, edo_ext.EXTRADHCPOPTS):
for opt in port.extra_dhcp_opts:
if opt.opt_name == edo_ext.DHCP_OPT_CLIENT_ID:
opt.opt_value = client_id
return port.extra_dhcp_opts
port.extra_dhcp_opts.append(self._gen_client_id_opt(client_id))
else:
setattr(port, edo_ext.EXTRADHCPOPTS,
[self._gen_client_id_opt(client_id)])
return port.extra_dhcp_opts
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