/usr/lib/python2.7/dist-packages/neutronclient/neutron/v2_0/subnet.py is in python-neutronclient 1:6.0.0-2.
This file is owned by root:root, with mode 0o644.
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# All Rights Reserved
#
# 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.
#
import argparse
from oslo_serialization import jsonutils
from neutronclient._i18n import _
from neutronclient.common import exceptions
from neutronclient.common import utils
from neutronclient.neutron import v2_0 as neutronV20
def _format_allocation_pools(subnet):
try:
return '\n'.join([jsonutils.dumps(pool) for pool in
subnet['allocation_pools']])
except (TypeError, KeyError):
return ''
def _format_dns_nameservers(subnet):
try:
return '\n'.join([jsonutils.dumps(server) for server in
subnet['dns_nameservers']])
except (TypeError, KeyError):
return ''
def _format_host_routes(subnet):
try:
return '\n'.join([jsonutils.dumps(route) for route in
subnet['host_routes']])
except (TypeError, KeyError):
return ''
def add_updatable_arguments(parser):
parser.add_argument(
'--name',
help=_('Name of this subnet.'))
parser.add_argument(
'--description',
help=_('Description of this subnet.'))
gateway_sg = parser.add_mutually_exclusive_group()
gateway_sg.add_argument(
'--gateway', metavar='GATEWAY_IP',
help=_('Gateway IP of this subnet.'))
gateway_sg.add_argument(
'--no-gateway',
action='store_true',
help=_('Do not configure a gateway for this subnet.'))
parser.add_argument(
'--allocation-pool', metavar='start=IP_ADDR,end=IP_ADDR',
action='append', dest='allocation_pools',
type=utils.str2dict_type(required_keys=['start', 'end']),
help=_('Allocation pool IP addresses for this subnet '
'(This option can be repeated).'))
parser.add_argument(
'--allocation_pool',
action='append', dest='allocation_pools',
type=utils.str2dict_type(required_keys=['start', 'end']),
help=argparse.SUPPRESS)
parser.add_argument(
'--host-route', metavar='destination=CIDR,nexthop=IP_ADDR',
action='append', dest='host_routes',
type=utils.str2dict_type(required_keys=['destination', 'nexthop']),
help=_('Additional route (This option can be repeated).'))
parser.add_argument(
'--dns-nameserver', metavar='DNS_NAMESERVER',
action='append', dest='dns_nameservers',
help=_('DNS name server for this subnet '
'(This option can be repeated).'))
parser.add_argument(
'--disable-dhcp',
action='store_true',
help=_('Disable DHCP for this subnet.'))
parser.add_argument(
'--enable-dhcp',
action='store_true',
help=_('Enable DHCP for this subnet.'))
# NOTE(ihrachys): yes, that's awful, but should be left as-is for
# backwards compatibility for versions <=2.3.4 that passed the
# boolean values through to the server without any argument
# validation.
parser.add_argument(
'--enable-dhcp=True',
action='store_true',
dest='enable_dhcp',
help=argparse.SUPPRESS)
parser.add_argument(
'--enable-dhcp=False',
action='store_true',
dest='disable_dhcp',
help=argparse.SUPPRESS)
def updatable_args2body(parsed_args, body, for_create=True, ip_version=None):
if parsed_args.disable_dhcp and parsed_args.enable_dhcp:
raise exceptions.CommandError(_(
"You cannot enable and disable DHCP at the same time."))
neutronV20.update_dict(parsed_args, body,
['name', 'allocation_pools',
'host_routes', 'dns_nameservers',
'description'])
if parsed_args.no_gateway:
body['gateway_ip'] = None
elif parsed_args.gateway:
body['gateway_ip'] = parsed_args.gateway
if parsed_args.disable_dhcp:
body['enable_dhcp'] = False
if parsed_args.enable_dhcp:
body['enable_dhcp'] = True
if for_create and parsed_args.ipv6_ra_mode:
if ip_version == 4:
raise exceptions.CommandError(_("--ipv6-ra-mode is invalid "
"when --ip-version is 4"))
body['ipv6_ra_mode'] = parsed_args.ipv6_ra_mode
if for_create and parsed_args.ipv6_address_mode:
if ip_version == 4:
raise exceptions.CommandError(_("--ipv6-address-mode is "
"invalid when --ip-version "
"is 4"))
body['ipv6_address_mode'] = parsed_args.ipv6_address_mode
class ListSubnet(neutronV20.ListCommand):
"""List subnets that belong to a given tenant."""
resource = 'subnet'
_formatters = {'allocation_pools': _format_allocation_pools,
'dns_nameservers': _format_dns_nameservers,
'host_routes': _format_host_routes, }
list_columns = ['id', 'name', 'cidr', 'allocation_pools']
pagination_support = True
sorting_support = True
class ShowSubnet(neutronV20.ShowCommand):
"""Show information of a given subnet."""
resource = 'subnet'
class CreateSubnet(neutronV20.CreateCommand):
"""Create a subnet for a given tenant."""
resource = 'subnet'
def add_known_arguments(self, parser):
add_updatable_arguments(parser)
parser.add_argument(
'--ip-version',
type=int,
default=4, choices=[4, 6],
help=_('IP version to use, default is 4. '
'Note that when subnetpool is specified, '
'IP version is determined from the subnetpool '
'and this option is ignored.'))
parser.add_argument(
'--ip_version',
type=int,
choices=[4, 6],
help=argparse.SUPPRESS)
parser.add_argument(
'network_id', metavar='NETWORK',
help=_('Network ID or name this subnet belongs to.'))
parser.add_argument(
'cidr', nargs='?', metavar='CIDR',
help=_('CIDR of subnet to create.'))
parser.add_argument(
'--ipv6-ra-mode',
type=utils.convert_to_lowercase,
choices=['dhcpv6-stateful', 'dhcpv6-stateless', 'slaac'],
help=_('IPv6 RA (Router Advertisement) mode.'))
parser.add_argument(
'--ipv6-address-mode',
type=utils.convert_to_lowercase,
choices=['dhcpv6-stateful', 'dhcpv6-stateless', 'slaac'],
help=_('IPv6 address mode.'))
parser.add_argument(
'--subnetpool', metavar='SUBNETPOOL',
help=_('ID or name of subnetpool from which this subnet '
'will obtain a CIDR.'))
parser.add_argument(
'--use-default-subnetpool',
action='store_true',
help=_('Use default subnetpool for ip_version, if it exists.'))
parser.add_argument(
'--prefixlen', metavar='PREFIX_LENGTH',
help=_('Prefix length for subnet allocation from subnetpool.'))
parser.add_argument(
'--segment', metavar='SEGMENT',
help=_('ID of segment with which this subnet will be associated.'))
def args2body(self, parsed_args):
_network_id = neutronV20.find_resourceid_by_name_or_id(
self.get_client(), 'network', parsed_args.network_id)
body = {'network_id': _network_id}
if parsed_args.prefixlen:
body['prefixlen'] = parsed_args.prefixlen
ip_version = parsed_args.ip_version
if parsed_args.use_default_subnetpool:
body['use_default_subnetpool'] = True
if parsed_args.segment:
body['segment_id'] = neutronV20.find_resourceid_by_name_or_id(
self.get_client(), 'segment', parsed_args.segment)
if parsed_args.subnetpool:
if parsed_args.subnetpool == 'None':
_subnetpool_id = None
else:
_subnetpool = neutronV20.find_resource_by_name_or_id(
self.get_client(), 'subnetpool', parsed_args.subnetpool)
_subnetpool_id = _subnetpool['id']
# Now that we have the pool_id - let's just have a check on the
# ip version used in the pool
ip_version = _subnetpool['ip_version']
body['subnetpool_id'] = _subnetpool_id
# IP version needs to be set as IP version can be
# determined by subnetpool.
body['ip_version'] = ip_version
if parsed_args.cidr:
# With subnetpool, cidr is now optional for creating subnet.
cidr = parsed_args.cidr
body['cidr'] = cidr
unusable_cidr = '/32' if ip_version == 4 else '/128'
if cidr.endswith(unusable_cidr):
self.log.warning(_("An IPv%(ip)d subnet with a %(cidr)s CIDR "
"will have only one usable IP address so "
"the device attached to it will not have "
"any IP connectivity."),
{"ip": ip_version,
"cidr": unusable_cidr})
updatable_args2body(parsed_args, body, ip_version=ip_version)
if parsed_args.tenant_id:
body['tenant_id'] = parsed_args.tenant_id
return {'subnet': body}
class DeleteSubnet(neutronV20.DeleteCommand):
"""Delete a given subnet."""
resource = 'subnet'
class UpdateSubnet(neutronV20.UpdateCommand):
"""Update subnet's information."""
resource = 'subnet'
def add_known_arguments(self, parser):
add_updatable_arguments(parser)
def args2body(self, parsed_args):
body = {}
updatable_args2body(parsed_args, body, for_create=False)
return {'subnet': body}
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