vmware-nsx/neutron/extensions/extra_dhcp_opt.py
dekehn 6a6a4b1088 extra_dhcp_opt add checks for empty strings
When passing extra-dhcp-opt into the port-create where an empty string
is provided as opt_value='   ', the create and update routine will load the
empty string into the DB. The result when written to the opts file is:
"tag:ece4c8aa-15c9-4f6b-8c42-7d4e285734bf,option:server-ip-address", which
when read by dnsmasq has been tested to cause dnsmasq to segment fault.

Change-Id: I31de4a3d27092bb219d20221c5ef5a6b22e050dc
Closes-Bug: #1257467
2013-12-13 08:40:28 -07:00

92 lines
2.8 KiB
Python

# Copyright (c) 2013 OpenStack Foundation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# @Author Don Kehn, dekehn@gmail.com
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.common import exceptions
# ExtraDHcpOpts Exceptions
class ExtraDhcpOptNotFound(exceptions.NotFound):
message = _("ExtraDhcpOpt %(id)s could not be found")
class ExtraDhcpOptBadData(exceptions.InvalidInput):
message = _("Invalid data format for extra-dhcp-opt: %(data)s")
def _validate_list_of_dict_or_none(data, key_specs=None):
if data is not None:
if not isinstance(data, list):
raise ExtraDhcpOptBadData(data=data)
for d in data:
msg = attr._validate_dict(d, key_specs)
if msg:
raise ExtraDhcpOptBadData(data=msg)
attr.validators['type:list_of_dict_or_none'] = _validate_list_of_dict_or_none
# Attribute Map
EXTRADHCPOPTS = 'extra_dhcp_opts'
EXTENDED_ATTRIBUTES_2_0 = {
'ports': {
EXTRADHCPOPTS:
{'allow_post': True,
'allow_put': True,
'is_visible': True,
'default': None,
'validate': {
'type:list_of_dict_or_none': {
'id': {'type:uuid': None, 'required': False},
'opt_name': {'type:not_empty_string': None,
'required': True},
'opt_value': {'type:not_empty_string_or_none': None,
'required': True}}}}}}
class Extra_dhcp_opt(extensions.ExtensionDescriptor):
@classmethod
def get_name(cls):
return "Neutron Extra DHCP opts"
@classmethod
def get_alias(cls):
return "extra_dhcp_opt"
@classmethod
def get_description(cls):
return ("Extra options configuration for DHCP. "
"For example PXE boot options to DHCP clients can "
"be specified (e.g. tftp-server, server-ip-address, "
"bootfile-name)")
@classmethod
def get_namespace(cls):
return "http://docs.openstack.org/ext/neutron/extra_dhcp_opt/api/v1.0"
@classmethod
def get_updated(cls):
return "2013-03-17T12:00:00-00:00"
def get_extended_resources(self, version):
if version == "2.0":
return EXTENDED_ATTRIBUTES_2_0
else:
return {}