151 lines
5.4 KiB
Python
151 lines
5.4 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012 NEC Corporation. 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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# @author: Ryota MIBU
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# @author: Akihiro MOTOKI
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import re
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import uuid
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from quantum.plugins.nec.common import ofc_client
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from quantum.plugins.nec.db import api as ndb
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from quantum.plugins.nec import ofc_driver_base
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class PFCDriverBase(ofc_driver_base.OFCDriverBase):
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"""Base Class for PDC Drivers
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PFCDriverBase provides methods to handle PFC resources through REST API.
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This uses ofc resource path instead of ofc resource ID.
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The class implements the API for PFC V4.0 or later.
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"""
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def __init__(self, conf_ofc):
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self.client = ofc_client.OFCClient(host=conf_ofc.host,
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port=conf_ofc.port,
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use_ssl=conf_ofc.use_ssl,
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key_file=conf_ofc.key_file,
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cert_file=conf_ofc.cert_file)
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@classmethod
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def filter_supported(cls):
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return False
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def _generate_pfc_str(self, raw_str):
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"""Generate PFC acceptable String"""
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return re.sub(r'[^0-9a-zA-Z]', '_', raw_str)
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def _generate_pfc_id(self, id_str):
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"""Generate ID on PFC
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Currently, PFC ID must be less than 32.
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Shorten UUID string length from 36 to 31 by follows:
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* delete UUID Version and hyphen (see RFC4122)
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* ensure str length
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"""
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try:
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# openstack.common.uuidutils.is_uuid_like() returns
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# False for KeyStone tenant_id, so uuid.UUID is used
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# directly here to accept tenant_id as UUID string
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uuid_str = str(uuid.UUID(id_str)).replace('-', '')
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uuid_no_version = uuid_str[:12] + uuid_str[13:]
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return uuid_no_version[:31]
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except:
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return self._generate_pfc_str(id_str)[:31]
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def _generate_pfc_description(self, desc):
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"""Generate Description on PFC
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Currently, PFC Description must be less than 128.
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"""
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return self._generate_pfc_str(desc)[:127]
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def create_tenant(self, description, tenant_id=None):
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ofc_tenant_id = self._generate_pfc_id(tenant_id)
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body = {'id': ofc_tenant_id}
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res = self.client.post('/tenants', body=body)
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return '/tenants/' + ofc_tenant_id
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def delete_tenant(self, ofc_tenant_id):
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return self.client.delete(ofc_tenant_id)
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def create_network(self, ofc_tenant_id, description, network_id=None):
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path = "%s/networks" % ofc_tenant_id
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pfc_desc = self._generate_pfc_description(description)
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body = {'description': pfc_desc}
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res = self.client.post(path, body=body)
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ofc_network_id = res['id']
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return path + '/' + ofc_network_id
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def delete_network(self, ofc_network_id):
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return self.client.delete(ofc_network_id)
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def create_port(self, ofc_network_id, portinfo,
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port_id=None):
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path = "%s/ports" % ofc_network_id
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body = {'datapath_id': portinfo.datapath_id,
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'port': str(portinfo.port_no),
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'vid': str(portinfo.vlan_id)}
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res = self.client.post(path, body=body)
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ofc_port_id = res['id']
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return path + '/' + ofc_port_id
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def delete_port(self, ofc_port_id):
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return self.client.delete(ofc_port_id)
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def convert_ofc_tenant_id(self, context, ofc_tenant_id):
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# If ofc_tenant_id starts with '/', it is already new-style
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if ofc_tenant_id[0] == '/':
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return ofc_tenant_id
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return '/tenants/%s' % ofc_tenant_id
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def convert_ofc_network_id(self, context, ofc_network_id, tenant_id):
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# If ofc_network_id starts with '/', it is already new-style
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if ofc_network_id[0] == '/':
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return ofc_network_id
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ofc_tenant_id = ndb.get_ofc_id_lookup_both(
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context.session, 'ofc_tenant', tenant_id)
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ofc_tenant_id = self.convert_ofc_tenant_id(context, ofc_tenant_id)
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params = dict(tenant=ofc_tenant_id, network=ofc_network_id)
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return '%(tenant)s/networks/%(network)s' % params
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def convert_ofc_port_id(self, context, ofc_port_id, tenant_id, network_id):
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# If ofc_port_id starts with '/', it is already new-style
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if ofc_port_id[0] == '/':
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return ofc_port_id
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ofc_network_id = ndb.get_ofc_id_lookup_both(
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context.session, 'ofc_network', network_id)
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ofc_network_id = self.convert_ofc_network_id(
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context, ofc_network_id, tenant_id)
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params = dict(network=ofc_network_id, port=ofc_port_id)
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return '%(network)s/ports/%(port)s' % params
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class PFCV3Driver(PFCDriverBase):
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def create_tenant(self, description, tenant_id):
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ofc_tenant_id = self._generate_pfc_id(tenant_id)
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return "/tenants/" + ofc_tenant_id
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def delete_tenant(self, ofc_tenant_id):
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pass
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class PFCV4Driver(PFCDriverBase):
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pass
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