0efce6195f
The following patch adds the concept of allowed address pairs. This allows one to add additional ip/mac address pairs on a port to allow traffic that matches those specified values. This is useful in order to leverage dataplane failover mechanisms like vrrp. This patch adds support for the NVP plugin, the OVS plugin, and Ml2. DocImpact implements blueprint: allowed-address-pairs Change-Id: Ie73b3886c5be8e1fc4ade86a0cfb854267f345ac
123 lines
4.2 KiB
Python
123 lines
4.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2013 Nicira Networks, Inc. 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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# @author: Aaron Rosen, Nicira, Inc
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import webob.exc
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from neutron.api.v2 import attributes as attr
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from neutron.common import exceptions as nexception
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class AllowedAddressPairsMissingIP(nexception.InvalidInput):
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message = _("AllowedAddressPair must contain ip_address")
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class AddressPairAndPortSecurityRequired(nexception.Conflict):
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message = _("Port Security must be enabled in order to have allowed "
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"address pairs on a port.")
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class DuplicateAddressPairInRequest(nexception.InvalidInput):
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message = _("Request contains duplicate address pair: "
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"mac_address %(mac_address)s ip_address %(ip_address)s.")
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class AddressPairMatchesPortFixedIPAndMac(nexception.InvalidInput):
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message = _("Port's Fixed IP and Mac Address match an address pair entry.")
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def _validate_allowed_address_pairs(address_pairs, valid_values=None):
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unique_check = {}
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for address_pair in address_pairs:
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# mac_address is optional, if not set we use the mac on the port
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if 'mac_address' in address_pair:
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msg = attr._validate_mac_address(address_pair['mac_address'])
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if msg:
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raise webob.exc.HTTPBadRequest(msg)
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if 'ip_address' not in address_pair:
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raise AllowedAddressPairsMissingIP()
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mac = address_pair.get('mac_address')
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ip_address = address_pair['ip_address']
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if (mac, ip_address) not in unique_check:
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unique_check[(mac, ip_address)] = None
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else:
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raise DuplicateAddressPairInRequest(mac_address=mac,
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ip_address=ip_address)
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invalid_attrs = set(address_pair.keys()) - set(['mac_address',
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'ip_address'])
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if invalid_attrs:
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msg = (_("Unrecognized attribute(s) '%s'") %
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', '.join(set(address_pair.keys()) -
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set(['mac_address', 'ip_address'])))
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raise webob.exc.HTTPBadRequest(msg)
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if '/' in ip_address:
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msg = attr._validate_subnet(ip_address)
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else:
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msg = attr._validate_ip_address(ip_address)
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if msg:
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raise webob.exc.HTTPBadRequest(msg)
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attr.validators['type:validate_allowed_address_pairs'] = (
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_validate_allowed_address_pairs)
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ADDRESS_PAIRS = 'allowed_address_pairs'
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EXTENDED_ATTRIBUTES_2_0 = {
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'ports': {
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ADDRESS_PAIRS: {'allow_post': True, 'allow_put': True,
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'convert_list_to':
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attr.convert_kvp_list_to_dict,
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'validate': {'type:validate_allowed_address_pairs':
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None},
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'enforce_policy': True,
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'default': attr.ATTR_NOT_SPECIFIED,
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'is_visible': True},
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}
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}
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class Allowedaddresspairs(object):
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"""Extension class supporting allowed address pairs."""
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@classmethod
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def get_name(cls):
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return "Allowed Address Pairs"
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@classmethod
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def get_alias(cls):
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return "allowed-address-pairs"
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@classmethod
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def get_description(cls):
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return "Provides allowed address pairs"
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@classmethod
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def get_namespace(cls):
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return "http://docs.openstack.org/ext/allowedaddresspairs/api/v2.0"
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@classmethod
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def get_updated(cls):
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return "2013-07-23T10:00:00-00:00"
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def get_extended_resources(self, version):
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if version == "2.0":
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return EXTENDED_ATTRIBUTES_2_0
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else:
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return {}
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