58 lines
2.0 KiB
Python
58 lines
2.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 VMware, Inc.
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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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import hashlib
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from neutron.api.v2.attributes import is_attr_set
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from neutron.openstack.common import log
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from neutron.version import version_info
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LOG = log.getLogger(__name__)
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MAX_DISPLAY_NAME_LEN = 40
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NEUTRON_VERSION = version_info.release_string()
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def get_tags(**kwargs):
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tags = ([dict(tag=value, scope=key)
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for key, value in kwargs.iteritems()])
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tags.append({"tag": NEUTRON_VERSION, "scope": "quantum"})
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return tags
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def device_id_to_vm_id(device_id, obfuscate=False):
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# device_id can be longer than 40 characters, for example
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# a device_id for a dhcp port is like the following:
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#
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# dhcp83b5fdeb-e3b4-5e18-ac5f-55161...80747326-47d7-46c2-a87a-cf6d5194877c
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#
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# To fit it into an NSX tag we need to hash it, however device_id
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# used for ports associated to VM's are small enough so let's skip the
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# hashing
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if len(device_id) > MAX_DISPLAY_NAME_LEN or obfuscate:
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return hashlib.sha1(device_id).hexdigest()
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else:
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return device_id
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def check_and_truncate(display_name):
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if is_attr_set(display_name) and len(display_name) > MAX_DISPLAY_NAME_LEN:
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LOG.debug(_("Specified name:'%s' exceeds maximum length. "
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"It will be truncated on NSX"), display_name)
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return display_name[:MAX_DISPLAY_NAME_LEN]
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return display_name or ''
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