113 lines
4.2 KiB
Python
113 lines
4.2 KiB
Python
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# (c) Copyright 2013 Hewlett-Packard Development Company, L.P.
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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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#
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"""VPN Utilities and helper functions."""
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from neutronclient._i18n import _
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from neutronclient.common import exceptions
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dpd_supported_actions = ['hold', 'clear', 'restart',
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'restart-by-peer', 'disabled']
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dpd_supported_keys = ['action', 'interval', 'timeout']
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lifetime_keys = ['units', 'value']
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lifetime_units = ['seconds']
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def validate_dpd_dict(dpd_dict):
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for key, value in dpd_dict.items():
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if key not in dpd_supported_keys:
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message = _(
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"DPD Dictionary KeyError: "
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"Reason-Invalid DPD key : "
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"'%(key)s' not in %(supported_key)s") % {
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'key': key, 'supported_key': dpd_supported_keys}
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raise exceptions.CommandError(message)
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if key == 'action' and value not in dpd_supported_actions:
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message = _(
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"DPD Dictionary ValueError: "
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"Reason-Invalid DPD action : "
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"'%(key_value)s' not in %(supported_action)s") % {
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'key_value': value,
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'supported_action': dpd_supported_actions}
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raise exceptions.CommandError(message)
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if key in ('interval', 'timeout'):
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try:
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if int(value) <= 0:
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raise ValueError()
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except ValueError:
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message = _(
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"DPD Dictionary ValueError: "
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"Reason-Invalid positive integer value: "
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"'%(key)s' = %(value)s") % {
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'key': key, 'value': value}
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raise exceptions.CommandError(message)
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else:
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dpd_dict[key] = int(value)
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return
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def validate_lifetime_dict(lifetime_dict):
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for key, value in lifetime_dict.items():
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if key not in lifetime_keys:
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message = _(
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"Lifetime Dictionary KeyError: "
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"Reason-Invalid unit key : "
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"'%(key)s' not in %(supported_key)s") % {
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'key': key, 'supported_key': lifetime_keys}
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raise exceptions.CommandError(message)
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if key == 'units' and value not in lifetime_units:
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message = _(
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"Lifetime Dictionary ValueError: "
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"Reason-Invalid units : "
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"'%(key_value)s' not in %(supported_units)s") % {
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'key_value': key, 'supported_units': lifetime_units}
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raise exceptions.CommandError(message)
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if key == 'value':
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try:
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if int(value) < 60:
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raise ValueError()
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except ValueError:
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message = _(
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"Lifetime Dictionary ValueError: "
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"Reason-Invalid value should be at least 60:"
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"'%(key_value)s' = %(value)s") % {
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'key_value': key, 'value': value}
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raise exceptions.CommandError(message)
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else:
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lifetime_dict['value'] = int(value)
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return
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def lifetime_help(policy):
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lifetime = _("%s lifetime attributes. "
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"'units'-seconds, default:seconds. "
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"'value'-non negative integer, default:3600.") % policy
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return lifetime
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def dpd_help(policy):
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dpd = _(" %s Dead Peer Detection attributes."
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" 'action'-hold,clear,disabled,restart,restart-by-peer."
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" 'interval' and 'timeout' are non negative integers. "
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" 'interval' should be less than 'timeout' value. "
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" 'action', default:hold 'interval', default:30, "
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" 'timeout', default:120.") % policy.capitalize()
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return dpd
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