e8d102b500
Added a network library dependant on the operating system. Windows and Linux OS are supported. The library is choosen automatically depending on Python ``os.name``. Linux library is based on ``ip`` commands and still relying on ``processutils`` library. Linux implementation can't use ``netifaces`` because this library doesn't provide the needed functionality. [1] will migrate all ``ip`` commands to ``pyroute2`` library. Windows library relies on Python's ``netifaces`` library because is enough for the reduced set of commands used. The only functionality implemented, to cover the bug resolution, is the device existence check. New functionalities could be added following, for example, the Neutron implementation. [1] https://review.openstack.org/#/c/484386/ Closes-Bug: #1672812 Change-Id: I84e3582135ed02137366c8f55f1dd1e4c115f0b5
101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
# 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 os_vif.i18n import _
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class ExceptionBase(Exception):
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"""Base Exception
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To correctly use this class, inherit from it and define
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a 'msg_fmt' property. That msg_fmt will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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msg_fmt = _("An unknown exception occurred.")
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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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if not message:
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try:
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message = self.msg_fmt % kwargs
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except Exception:
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# at least get the core message out if something happened
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message = self.msg_fmt
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self.message = message
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super(ExceptionBase, self).__init__(message)
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def format_message(self):
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# NOTE(mrodden): use the first argument to the python Exception object
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# which should be our full NovaException message, (see __init__)
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return self.args[0]
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class LibraryNotInitialized(ExceptionBase):
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msg_fmt = _("Before using the os_vif library, you need to call "
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"os_vif.initialize()")
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class NoMatchingPlugin(ExceptionBase):
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msg_fmt = _("No VIF plugin was found with the name %(plugin_name)s")
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class NoMatchingPortProfileClass(ExceptionBase):
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msg_fmt = _("No PortProfile class was found with the name %(name)s")
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class NoSupportedPortProfileVersion(ExceptionBase):
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msg_fmt = _("PortProfile class %(name)s "
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"versions %(got_versions)s do not satisfy "
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"min=%(min_version)s max=%(max_version)s")
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class NoMatchingVIFClass(ExceptionBase):
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msg_fmt = _("No VIF class was found with the name %(name)s")
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class NoSupportedVIFVersion(ExceptionBase):
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msg_fmt = _("VIF class %(name)s versions %(got_versions)s "
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"do not satisfy min=%(min_version)s max=%(max_version)s")
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class PlugException(ExceptionBase):
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msg_fmt = _("Failed to plug VIF %(vif)s. Got error: %(err)s")
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class UnplugException(ExceptionBase):
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msg_fmt = _("Failed to unplug VIF %(vif)s. Got error: %(err)s")
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class NetworkMissingPhysicalNetwork(ExceptionBase):
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msg_fmt = _("Physical network is missing for network %(network_uuid)s")
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class NetworkInterfaceNotFound(ExceptionBase):
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msg_fmt = _("Network interface %(interface)s not found")
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class NetworkInterfaceTypeNotDefined(ExceptionBase):
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msg_fmt = _("Network interface type %(type)s not defined")
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class ExternalImport(ExceptionBase):
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msg_fmt = _("Use of this module outside of os_vif is not allowed. It must "
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"not be imported in os-vif plugins that are out of tree as it "
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"is not a public interface of os-vif.")
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class NotImplementedForOS(ExceptionBase):
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msg_fmt = _("Function %(function)s for %(os)s operating system")
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