48 lines
2.0 KiB
Python
48 lines
2.0 KiB
Python
# 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 copy
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from os_brick.initiator import initiator_connector
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class BaseISCSIConnector(initiator_connector.InitiatorConnector):
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def _iterate_all_targets(self, connection_properties):
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for portal, iqn, lun in self._get_all_targets(connection_properties):
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props = copy.deepcopy(connection_properties)
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props['target_portal'] = portal
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props['target_iqn'] = iqn
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props['target_lun'] = lun
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for key in ('target_portals', 'target_iqns', 'target_luns'):
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props.pop(key, None)
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yield props
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@staticmethod
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def _get_luns(con_props, iqns=None):
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luns = con_props.get('target_luns')
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num_luns = len(con_props['target_iqns']) if iqns is None else len(iqns)
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return luns or [con_props['target_lun']] * num_luns
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def _get_all_targets(self, connection_properties):
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if all(key in connection_properties for key in ('target_portals',
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'target_iqns')):
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return list(zip(connection_properties['target_portals'],
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connection_properties['target_iqns'],
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self._get_luns(connection_properties)))
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return [(connection_properties['target_portal'],
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connection_properties['target_iqn'],
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connection_properties.get('target_lun', 0))]
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