31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
# Copyright (c) 2016 IBM Corp.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron_lib import constants as n_const
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from neutron_lib.plugins import utils as plugin_utils
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MAX_VLAN_POSTFIX_LEN = 5
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def get_vlan_device_name(src_dev, vlan):
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"""Generating the vlan device name."""
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# Ensure that independent of the vlan len the same name prefix is used.
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src_dev = plugin_utils.get_interface_name(
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src_dev, max_len=n_const.DEVICE_NAME_MAX_LEN - MAX_VLAN_POSTFIX_LEN)
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return "%s.%s" % (src_dev, vlan)
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