author | Danek Duvall <danek.duvall@oracle.com> |
Mon, 20 Apr 2015 12:35:51 -0700 | |
branch | s11u2-sru |
changeset 4156 | 4b1def16fe9b |
child 4975 | 6445e44cfccd |
child 6035 | c9748fcc32de |
permissions | -rw-r--r-- |
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# vim: tabstop=4 shiftwidth=4 softtabstop=4 |
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# Copyright 2014 OpenStack Foundation |
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# All Rights Reserved. |
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# |
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# Copyright (c) 2015, Oracle and/or its affiliates. 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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import jinja2 |
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import netaddr |
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from oslo.config import cfg |
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import six |
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from neutron.agent.linux import utils |
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from neutron.common import constants |
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from neutron.openstack.common import log as logging |
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LOG = logging.getLogger(__name__) |
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OPTS = [ |
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cfg.StrOpt('ra_confs', |
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default='$state_path/ra', |
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help=_('Location to store IPv6 RA config files')), |
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] |
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cfg.CONF.register_opts(OPTS) |
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NDP_SMF_FMRI = 'svc:/network/routing/ndp:default' |
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CONFIG_TEMPLATE = jinja2.Template("""if {{ interface_name }} \ |
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AdvSendAdvertisements on \ |
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MinRtrAdvInterval 3 \ |
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MaxRtrAdvInterval 10 \ |
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{% if ra_mode == constants.DHCPV6_STATELESS %} |
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AdvOtherConfigFlag on \ |
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{% endif %} |
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{% if ra_mode == constants.DHCPV6_STATEFUL %} |
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AdvManagedFlag on |
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{% endif %} |
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{% if ra_mode in (constants.IPV6_SLAAC, constants.DHCPV6_STATELESS) %} |
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prefix {{ prefix }} {{ interface_name }} \ |
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AdvOnLinkFlag on \ |
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AdvAutonomousFlag on |
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{% endif %} |
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""") |
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def _generate_ndpd_conf(router_id, router_ports, dev_name_helper): |
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ndpd_conf = utils.get_conf_file_name(cfg.CONF.ra_confs, router_id, |
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'ndpd.conf', True) |
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buf = six.StringIO() |
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for p in router_ports: |
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prefix = p['subnet']['cidr'] |
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if netaddr.IPNetwork(prefix).version == 6: |
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interface_name = dev_name_helper(p['id']) |
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ra_mode = p['subnet']['ipv6_ra_mode'] |
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buf.write('%s' % CONFIG_TEMPLATE.render( |
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ra_mode=ra_mode, |
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interface_name=interface_name, |
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prefix=prefix, |
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constants=constants)) |
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utils.replace_file(ndpd_conf, buf.getvalue()) |
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return ndpd_conf |
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def _refresh_ndpd(ndpd_conf): |
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cmd = ['/usr/sbin/svccfg', '-s', NDP_SMF_FMRI, 'setprop', |
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'routing/config_file', '=', ndpd_conf] |
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utils.execute(cmd) |
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# ndpd SMF service doesn't support refresh method, so we |
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# need to restart |
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cmd = ['/usr/sbin/svcadm', 'restart', NDP_SMF_FMRI] |
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utils.execute(cmd) |
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LOG.debug(_("ndpd daemon has been refreshed to re-read the " |
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"configuration file")) |
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def enable_ipv6_ra(router_id, router_ports, dev_name_helper): |
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for p in router_ports: |
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if netaddr.IPNetwork(p['subnet']['cidr']).version == 6: |
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break |
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else: |
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disable_ipv6_ra(router_id) |
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return |
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LOG.debug("enabling ndpd for router %s", router_id) |
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ndpd_conf = _generate_ndpd_conf(router_id, router_ports, dev_name_helper) |
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_refresh_ndpd(ndpd_conf) |
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|
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def disable_ipv6_ra(router_id): |
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LOG.debug("disabling ndpd for router %s", router_id) |
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utils.remove_conf_files(cfg.CONF.ra_confs, router_id) |
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_refresh_ndpd("") |