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# Copyright (c) 2016 IBM Corp.
# 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 neutron_lib import constants as n_const
from neutron_lib.plugins import utils as plugin_utils
def get_vlan_device_name(src_dev, vlan):
"""Generating the vlan device name."""
# Ensure that independent of the vlan len the same name prefix is used.
src_dev = plugin_utils.get_interface_name(
src_dev, max_len=n_const.DEVICE_NAME_MAX_LEN - MAX_VLAN_POSTFIX_LEN)
return "%s.%s" % (src_dev, vlan)