+++ /dev/null
-# Copyright (C) 2014 VA Linux Systems Japan K.K.
-# Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
-# Copyright (C) 2014 Fumihiko Kakuma <kakuma at valinux co jp>
-# All Rights Reserved.
-#
-# Based on openvswitch agent.
-#
-# Copyright 2011 VMware, Inc.
-# 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 time
-
-import netaddr
-from oslo_config import cfg
-import oslo_messaging
-from ryu.app.ofctl import api as ryu_api
-from ryu.base import app_manager
-from ryu.controller import handler
-from ryu.controller import ofp_event
-from ryu.lib import hub
-from ryu.ofproto import ofproto_v1_3 as ryu_ofp13
-
-from neutron.agent import l2population_rpc
-from neutron.agent.linux import ip_lib
-from neutron.agent.linux import ovs_lib
-from neutron.agent import rpc as agent_rpc
-from neutron.agent import securitygroups_rpc as sg_rpc
-from neutron.common import constants as n_const
-from neutron.common import log
-from neutron.common import topics
-from neutron.common import utils as n_utils
-from neutron import context
-from neutron.i18n import _LE, _LI, _LW
-from neutron.openstack.common import log as logging
-from neutron.openstack.common import loopingcall
-from neutron.plugins.common import constants as p_const
-from neutron.plugins.ofagent.agent import arp_lib
-from neutron.plugins.ofagent.agent import constants as ofa_const
-from neutron.plugins.ofagent.agent import flows
-from neutron.plugins.ofagent.agent import ports
-from neutron.plugins.ofagent.agent import tables
-from neutron.plugins.openvswitch.common import constants
-
-
-LOG = logging.getLogger(__name__)
-cfg.CONF.import_group('AGENT', 'neutron.plugins.ofagent.common.config')
-
-
-# A class to represent a VIF (i.e., a port that has 'iface-id' and 'vif-mac'
-# attributes set).
-class LocalVLANMapping(object):
- def __init__(self, vlan, network_type, physical_network, segmentation_id,
- vif_ports=None):
- assert(isinstance(vlan, (int, long)))
- if vif_ports is None:
- vif_ports = {}
- self.vlan = vlan
- self.network_type = network_type
- self.physical_network = physical_network
- self.segmentation_id = segmentation_id
- self.vif_ports = vif_ports
- # set of tunnel ports on which packets should be flooded
- self.tun_ofports = set()
-
- def __str__(self):
- return ("lv-id = %s type = %s phys-net = %s phys-id = %s" %
- (self.vlan, self.network_type, self.physical_network,
- self.segmentation_id))
-
-
-class Bridge(flows.OFAgentIntegrationBridge, ovs_lib.OVSBridge):
- def __init__(self, br_name, ryuapp):
- super(Bridge, self).__init__(br_name)
- self.datapath_id = None
- self.datapath = None
- self.ryuapp = ryuapp
- self.set_app(ryuapp)
-
- def find_datapath_id(self):
- self.datapath_id = self.get_datapath_id()
-
- def get_datapath(self, retry_max=cfg.CONF.AGENT.get_datapath_retry_times):
- retry = 0
- while self.datapath is None:
- self.datapath = ryu_api.get_datapath(self.ryuapp,
- int(self.datapath_id, 16))
- retry += 1
- if retry >= retry_max:
- LOG.error(_LE('Agent terminated!: Failed to get a datapath.'))
- raise SystemExit(1)
- time.sleep(1)
- self.set_dp(self.datapath)
-
- def setup_ofp(self, controller_names=None,
- protocols='OpenFlow13',
- retry_max=cfg.CONF.AGENT.get_datapath_retry_times):
- if not controller_names:
- host = cfg.CONF.ofp_listen_host
- if not host:
- # 127.0.0.1 is a default for agent style of controller
- host = '127.0.0.1'
- controller_names = ["tcp:%s:%d" % (host,
- cfg.CONF.ofp_tcp_listen_port)]
- try:
- self.set_protocols(protocols)
- self.set_controller(controller_names)
- except RuntimeError:
- LOG.exception(_LE("Agent terminated"))
- raise SystemExit(1)
- self.find_datapath_id()
- self.get_datapath(retry_max)
-
-
-# RyuApp derives from `object`, but pylint can't see that without
-# having the ryu libraries available.
-# pylint: disable=super-on-old-class
-class OFANeutronAgentRyuApp(app_manager.RyuApp):
- OFP_VERSIONS = [ryu_ofp13.OFP_VERSION]
-
- def __init__(self, *args, **kwargs):
- super(OFANeutronAgentRyuApp, self).__init__(*args, **kwargs)
- self.arplib = arp_lib.ArpLib(self)
-
- def start(self):
- super(OFANeutronAgentRyuApp, self).start()
- return hub.spawn(self._agent_main, self)
-
- def _agent_main(self, ryuapp):
- cfg.CONF.register_opts(ip_lib.OPTS)
- n_utils.log_opt_values(LOG)
-
- try:
- agent_config = create_agent_config_map(cfg.CONF)
- except ValueError:
- LOG.exception(_LE("Agent failed to create agent config map"))
- raise SystemExit(1)
-
- agent = OFANeutronAgent(ryuapp, **agent_config)
- self.arplib.set_bridge(agent.int_br)
-
- # Start everything.
- LOG.info(_LI("Agent initialized successfully, now running... "))
- agent.daemon_loop()
-
- @handler.set_ev_cls(ofp_event.EventOFPPacketIn, handler.MAIN_DISPATCHER)
- def _packet_in_handler(self, ev):
- self.arplib.packet_in_handler(ev)
-
- def add_arp_table_entry(self, network, ip, mac):
- self.arplib.add_arp_table_entry(network, ip, mac)
-
- def del_arp_table_entry(self, network, ip):
- self.arplib.del_arp_table_entry(network, ip)
-
-
-class OFANeutronAgent(sg_rpc.SecurityGroupAgentRpcCallbackMixin,
- l2population_rpc.L2populationRpcCallBackTunnelMixin):
- """A agent for OpenFlow Agent ML2 mechanism driver.
-
- OFANeutronAgent is a OpenFlow Agent agent for a ML2 plugin.
- This is as a ryu application thread.
- This has the following features.
- - An agent acts as an OpenFlow controller on each compute nodes.
- - OpenFlow 1.3 (vendor agnostic unlike OVS extensions).
- - l2-population is mandatory.
- """
-
- # history
- # 1.0 Initial version
- # 1.1 Support Security Group RPC
- target = oslo_messaging.Target(version='1.1')
-
- def __init__(self, ryuapp, integ_br, local_ip,
- bridge_mappings, interface_mappings,
- polling_interval, tunnel_types=None):
- """Constructor.
-
- :param ryuapp: object of the ryu app.
- :param integ_br: name of the integration bridge.
- :param local_ip: local IP address of this hypervisor.
- :param bridge_mappings: mappings from physical network name to bridge.
- (deprecated)
- :param interface_mappings: mappings from physical network name to
- interface.
- :param polling_interval: interval (secs) to poll DB.
- :param tunnel_types: A list of tunnel types to enable support for in
- the agent. If set, will automatically set enable_tunneling to
- True.
- """
- super(OFANeutronAgent, self).__init__()
- self.ryuapp = ryuapp
- # TODO(yamamoto): Remove this VLAN leftover
- self.available_local_vlans = set(xrange(ofa_const.LOCAL_VLAN_MIN,
- ofa_const.LOCAL_VLAN_MAX))
- self.tunnel_types = tunnel_types or []
- l2pop_network_types = list(set(self.tunnel_types +
- [p_const.TYPE_VLAN,
- p_const.TYPE_FLAT,
- p_const.TYPE_LOCAL]))
- self.agent_state = {
- 'binary': 'neutron-ofa-agent',
- 'host': cfg.CONF.host,
- 'topic': n_const.L2_AGENT_TOPIC,
- 'configurations': {
- 'bridge_mappings': bridge_mappings,
- 'interface_mappings': interface_mappings,
- 'tunnel_types': self.tunnel_types,
- 'tunneling_ip': local_ip,
- 'l2_population': True,
- 'l2pop_network_types': l2pop_network_types},
- 'agent_type': n_const.AGENT_TYPE_OFA,
- 'start_flag': True}
-
- # Keep track of int_br's device count for use by _report_state()
- self.int_br_device_count = 0
-
- self.int_br = Bridge(integ_br, self.ryuapp)
- # Stores port update notifications for processing in main loop
- self.updated_ports = set()
- self.setup_rpc()
- self.setup_integration_br()
- self.int_ofports = {}
- self.setup_physical_interfaces(interface_mappings)
- self.local_vlan_map = {}
- self.tun_ofports = {}
- for t in tables.TUNNEL_TYPES:
- self.tun_ofports[t] = {}
- self.polling_interval = polling_interval
-
- self.enable_tunneling = bool(self.tunnel_types)
- self.local_ip = local_ip
- self.tunnel_count = 0
- self.vxlan_udp_port = cfg.CONF.AGENT.vxlan_udp_port
- self.dont_fragment = cfg.CONF.AGENT.dont_fragment
-
- # Security group agent support
- self.sg_agent = sg_rpc.SecurityGroupAgentRpc(self.context,
- self.sg_plugin_rpc, defer_refresh_firewall=True)
- # Initialize iteration counter
- self.iter_num = 0
-
- def _report_state(self):
- # How many devices are likely used by a VM
- self.agent_state.get('configurations')['devices'] = (
- self.int_br_device_count)
- try:
- self.state_rpc.report_state(self.context,
- self.agent_state)
- self.agent_state.pop('start_flag', None)
- except Exception:
- LOG.exception(_LE("Failed reporting state!"))
-
- def _create_tunnel_port_name(self, tunnel_type, ip_address):
- try:
- ip_hex = '%08x' % netaddr.IPAddress(ip_address, version=4)
- return '%s-%s' % (tunnel_type, ip_hex)
- except Exception:
- LOG.warn(_LW("Unable to create tunnel port. "
- "Invalid remote IP: %s"), ip_address)
-
- def setup_rpc(self):
- mac = self.int_br.get_local_port_mac()
- self.agent_id = '%s%s' % ('ovs', (mac.replace(":", "")))
- self.topic = topics.AGENT
- self.plugin_rpc = agent_rpc.PluginApi(topics.PLUGIN)
- self.sg_plugin_rpc = sg_rpc.SecurityGroupServerRpcApi(topics.PLUGIN)
- self.state_rpc = agent_rpc.PluginReportStateAPI(topics.PLUGIN)
-
- # RPC network init
- self.context = context.get_admin_context_without_session()
- # Handle updates from service
- self.endpoints = [self]
- # Define the listening consumers for the agent
- consumers = [[topics.PORT, topics.UPDATE],
- [topics.SECURITY_GROUP, topics.UPDATE],
- [topics.L2POPULATION, topics.UPDATE, cfg.CONF.host]]
- self.connection = agent_rpc.create_consumers(self.endpoints,
- self.topic,
- consumers)
- report_interval = cfg.CONF.AGENT.report_interval
- if report_interval:
- heartbeat = loopingcall.FixedIntervalLoopingCall(
- self._report_state)
- heartbeat.start(interval=report_interval)
-
- def _get_ports(self, br):
- """Generate ports.Port instances for the given bridge."""
- datapath = br.datapath
- ofpp = datapath.ofproto_parser
- msg = ofpp.OFPPortDescStatsRequest(datapath=datapath)
- descs = ryu_api.send_msg(app=self.ryuapp, msg=msg,
- reply_cls=ofpp.OFPPortDescStatsReply,
- reply_multi=True)
- for d in descs:
- for p in d.body:
- yield ports.Port.from_ofp_port(p)
-
- def _get_ofport_names(self, br):
- """Return a set of OpenFlow port names for the given bridge."""
- return set(p.normalized_port_name() for p in
- self._get_ports(br) if p.is_neutron_port())
-
- def get_net_uuid(self, vif_id):
- for network_id, vlan_mapping in self.local_vlan_map.iteritems():
- if vif_id in vlan_mapping.vif_ports:
- return network_id
-
- @log.log
- def port_update(self, context, **kwargs):
- port = kwargs.get('port')
- # Put the port identifier in the updated_ports set.
- # Even if full port details might be provided to this call,
- # they are not used since there is no guarantee the notifications
- # are processed in the same order as the relevant API requests
- self.updated_ports.add(ports.get_normalized_port_name(port['id']))
-
- def _tunnel_port_lookup(self, network_type, remote_ip):
- return self.tun_ofports[network_type].get(remote_ip)
-
- @log.log
- def fdb_add(self, context, fdb_entries):
- for lvm, agent_ports in self.get_agent_ports(fdb_entries,
- self.local_vlan_map):
- if lvm.network_type in self.tunnel_types:
- local = agent_ports.pop(self.local_ip, None)
- if local:
- self._fdb_add_arp(lvm, {self.local_ip: local})
- if len(agent_ports):
- self.fdb_add_tun(context, self.int_br, lvm, agent_ports,
- self._tunnel_port_lookup)
- else:
- self._fdb_add_arp(lvm, agent_ports)
-
- @log.log
- def fdb_remove(self, context, fdb_entries):
- for lvm, agent_ports in self.get_agent_ports(fdb_entries,
- self.local_vlan_map):
- if lvm.network_type in self.tunnel_types:
- local = agent_ports.pop(self.local_ip, None)
- if local:
- self._fdb_remove_arp(lvm, {self.local_ip: local})
- if len(agent_ports):
- self.fdb_remove_tun(context, self.int_br, lvm, agent_ports,
- self._tunnel_port_lookup)
- else:
- self._fdb_remove_arp(lvm, agent_ports)
-
- @log.log
- def _fdb_add_arp(self, lvm, agent_ports):
- for _remote_ip, port_infos in agent_ports.items():
- for port_info in port_infos:
- if port_info == n_const.FLOODING_ENTRY:
- continue
- self.ryuapp.add_arp_table_entry(lvm.vlan,
- port_info.ip_address,
- port_info.mac_address)
-
- @log.log
- def _fdb_remove_arp(self, lvm, agent_ports):
- for _remote_ip, port_infos in agent_ports.items():
- for port_info in port_infos:
- if port_info == n_const.FLOODING_ENTRY:
- continue
- self.ryuapp.del_arp_table_entry(lvm.vlan, port_info.ip_address)
-
- def add_fdb_flow(self, br, port_info, remote_ip, lvm, ofport):
- if port_info == n_const.FLOODING_ENTRY:
- lvm.tun_ofports.add(ofport)
- br.install_tunnel_output(
- tables.TUNNEL_FLOOD[lvm.network_type],
- lvm.vlan, lvm.segmentation_id,
- lvm.tun_ofports, goto_next=True)
- else:
- self.ryuapp.add_arp_table_entry(
- lvm.vlan,
- port_info.ip_address,
- port_info.mac_address)
- br.install_tunnel_output(
- tables.TUNNEL_OUT,
- lvm.vlan, lvm.segmentation_id,
- set([ofport]), goto_next=False, eth_dst=port_info.mac_address)
-
- def del_fdb_flow(self, br, port_info, remote_ip, lvm, ofport):
- if port_info == n_const.FLOODING_ENTRY:
- if ofport not in lvm.tun_ofports:
- LOG.debug("attempt to remove a non-existent port %s", ofport)
- return
- lvm.tun_ofports.remove(ofport)
- if len(lvm.tun_ofports) > 0:
- br.install_tunnel_output(
- tables.TUNNEL_FLOOD[lvm.network_type],
- lvm.vlan, lvm.segmentation_id,
- lvm.tun_ofports, goto_next=True)
- else:
- br.delete_tunnel_output(
- tables.TUNNEL_FLOOD[lvm.network_type],
- lvm.vlan)
- else:
- self.ryuapp.del_arp_table_entry(lvm.vlan, port_info.ip_address)
- br.delete_tunnel_output(tables.TUNNEL_OUT,
- lvm.vlan, eth_dst=port_info.mac_address)
-
- def setup_entry_for_arp_reply(self, br, action, local_vid, mac_address,
- ip_address):
- if action == 'add':
- self.ryuapp.add_arp_table_entry(local_vid, ip_address, mac_address)
- elif action == 'remove':
- self.ryuapp.del_arp_table_entry(local_vid, ip_address)
-
- @log.log
- def _fdb_chg_ip(self, context, fdb_entries):
- self.fdb_chg_ip_tun(context, self.int_br, fdb_entries, self.local_ip,
- self.local_vlan_map)
-
- def provision_local_vlan(self, net_uuid, network_type, physical_network,
- segmentation_id):
- """Provisions a local VLAN.
-
- :param net_uuid: the uuid of the network associated with this vlan.
- :param network_type: the network type ('gre', 'vxlan', 'vlan', 'flat',
- 'local')
- :param physical_network: the physical network for 'vlan' or 'flat'
- :param segmentation_id: the VID for 'vlan' or tunnel ID for 'tunnel'
- """
-
- if not self.available_local_vlans:
- LOG.error(_LE("No local VLAN available for net-id=%s"), net_uuid)
- return
- lvid = self.available_local_vlans.pop()
- LOG.info(_LI("Assigning %(vlan_id)s as local vlan for "
- "net-id=%(net_uuid)s"),
- {'vlan_id': lvid, 'net_uuid': net_uuid})
- self.local_vlan_map[net_uuid] = LocalVLANMapping(lvid, network_type,
- physical_network,
- segmentation_id)
-
- if network_type in constants.TUNNEL_NETWORK_TYPES:
- if self.enable_tunneling:
- self.int_br.provision_tenant_tunnel(network_type, lvid,
- segmentation_id)
- else:
- LOG.error(_LE("Cannot provision %(network_type)s network for "
- "net-id=%(net_uuid)s - tunneling disabled"),
- {'network_type': network_type,
- 'net_uuid': net_uuid})
- elif network_type in [p_const.TYPE_VLAN, p_const.TYPE_FLAT]:
- if physical_network in self.int_ofports:
- phys_port = self.int_ofports[physical_network]
- self.int_br.provision_tenant_physnet(network_type, lvid,
- segmentation_id,
- phys_port)
- else:
- LOG.error(_LE("Cannot provision %(network_type)s network for "
- "net-id=%(net_uuid)s - no bridge for "
- "physical_network %(physical_network)s"),
- {'network_type': network_type,
- 'net_uuid': net_uuid,
- 'physical_network': physical_network})
- elif network_type == p_const.TYPE_LOCAL:
- # no flows needed for local networks
- pass
- else:
- LOG.error(_LE("Cannot provision unknown network type "
- "%(network_type)s for net-id=%(net_uuid)s"),
- {'network_type': network_type,
- 'net_uuid': net_uuid})
-
- def reclaim_local_vlan(self, net_uuid):
- """Reclaim a local VLAN.
-
- :param net_uuid: the network uuid associated with this vlan.
- :param lvm: a LocalVLANMapping object that tracks (vlan, lsw_id,
- vif_ids) mapping.
- """
- lvm = self.local_vlan_map.pop(net_uuid, None)
- if lvm is None:
- LOG.debug("Network %s not used on agent.", net_uuid)
- return
-
- LOG.info(_LI("Reclaiming vlan = %(vlan_id)s from "
- "net-id = %(net_uuid)s"),
- {'vlan_id': lvm.vlan,
- 'net_uuid': net_uuid})
-
- if lvm.network_type in constants.TUNNEL_NETWORK_TYPES:
- if self.enable_tunneling:
- self.int_br.reclaim_tenant_tunnel(lvm.network_type, lvm.vlan,
- lvm.segmentation_id)
- # Try to remove tunnel ports if not used by other networks
- for ofport in lvm.tun_ofports:
- self.cleanup_tunnel_port(self.int_br, ofport,
- lvm.network_type)
- elif lvm.network_type in [p_const.TYPE_FLAT, p_const.TYPE_VLAN]:
- phys_port = self.int_ofports[lvm.physical_network]
- self.int_br.reclaim_tenant_physnet(lvm.network_type, lvm.vlan,
- lvm.segmentation_id, phys_port)
- elif lvm.network_type == p_const.TYPE_LOCAL:
- # no flows needed for local networks
- pass
- else:
- LOG.error(_LE("Cannot reclaim unknown network type "
- "%(network_type)s for net-id=%(net_uuid)s"),
- {'network_type': lvm.network_type,
- 'net_uuid': net_uuid})
-
- self.available_local_vlans.add(lvm.vlan)
-
- def port_bound(self, port, net_uuid,
- network_type, physical_network, segmentation_id):
- """Bind port to net_uuid/lsw_id and install flow for inbound traffic
- to vm.
-
- :param port: a ports.Port object.
- :param net_uuid: the net_uuid this port is to be associated with.
- :param network_type: the network type ('gre', 'vlan', 'flat', 'local')
- :param physical_network: the physical network for 'vlan' or 'flat'
- :param segmentation_id: the VID for 'vlan' or tunnel ID for 'tunnel'
- """
- if net_uuid not in self.local_vlan_map:
- self.provision_local_vlan(net_uuid, network_type,
- physical_network, segmentation_id)
- lvm = self.local_vlan_map[net_uuid]
-
- lvm.vif_ports[port.normalized_port_name()] = port
- self.int_br.check_in_port_add_local_port(lvm.vlan, port.ofport)
-
- # if any of vif mac is unknown, flood unicasts as well
- flood_unicast = any(map(lambda x: x.vif_mac is None,
- lvm.vif_ports.values()))
- ofports = (vp.ofport for vp in lvm.vif_ports.values())
- self.int_br.local_flood_update(lvm.vlan, ofports, flood_unicast)
- if port.vif_mac is None:
- return
- self.int_br.local_out_add_port(lvm.vlan, port.ofport, port.vif_mac)
-
- def port_unbound(self, vif_id, net_uuid=None):
- """Unbind port.
-
- Removes corresponding local vlan mapping object if this is its last
- VIF.
-
- :param vif_id: the id of the vif
- :param net_uuid: the net_uuid this port is associated with.
- """
- net_uuid = net_uuid or self.get_net_uuid(vif_id)
-
- if not self.local_vlan_map.get(net_uuid):
- LOG.info(_LI('port_unbound() net_uuid %s not in local_vlan_map'),
- net_uuid)
- return
-
- lvm = self.local_vlan_map[net_uuid]
- port = lvm.vif_ports.pop(vif_id, None)
-
- self.int_br.check_in_port_delete_port(port.ofport)
- if not lvm.vif_ports:
- self.reclaim_local_vlan(net_uuid)
- if port.vif_mac is None:
- return
- self.int_br.local_out_delete_port(lvm.vlan, port.vif_mac)
-
- def port_dead(self, port):
- """Once a port has no binding, put it on the "dead vlan".
-
- :param port: a ovs_lib.VifPort object.
- """
- pass
-
- def setup_integration_br(self):
- """Setup the integration bridge.
- """
-
- br = self.int_br
- br.setup_ofp()
- br.setup_default_table()
-
- def setup_physical_interfaces(self, interface_mappings):
- """Setup the physical network interfaces.
-
- Link physical network interfaces to the integration bridge.
-
- :param interface_mappings: map physical network names to
- interface names.
- """
- for physical_network, interface_name in interface_mappings.iteritems():
- ofport = int(self.int_br.add_port(interface_name))
- self.int_ofports[physical_network] = ofport
-
- def scan_ports(self, registered_ports, updated_ports=None):
- cur_ports = self._get_ofport_names(self.int_br)
- self.int_br_device_count = len(cur_ports)
- port_info = {'current': cur_ports}
- if updated_ports is None:
- updated_ports = set()
- if updated_ports:
- # Some updated ports might have been removed in the
- # meanwhile, and therefore should not be processed.
- # In this case the updated port won't be found among
- # current ports.
- updated_ports &= cur_ports
- if updated_ports:
- port_info['updated'] = updated_ports
-
- if cur_ports == registered_ports:
- # No added or removed ports to set, just return here
- return port_info
-
- port_info['added'] = cur_ports - registered_ports
- # Remove all the known ports not found on the integration bridge
- port_info['removed'] = registered_ports - cur_ports
- return port_info
-
- def treat_vif_port(self, vif_port, port_id, network_id, network_type,
- physical_network, segmentation_id, admin_state_up):
- if vif_port:
- # When this function is called for a port, the port should have
- # an OVS ofport configured, as only these ports were considered
- # for being treated. If that does not happen, it is a potential
- # error condition of which operators should be aware
- if not vif_port.ofport:
- LOG.warn(_LW("VIF port: %s has no ofport configured, "
- "and might not be able to transmit"),
- vif_port.port_name)
- if admin_state_up:
- self.port_bound(vif_port, network_id, network_type,
- physical_network, segmentation_id)
- else:
- self.port_dead(vif_port)
- else:
- LOG.debug("No VIF port for port %s defined on agent.", port_id)
-
- def _setup_tunnel_port(self, br, port_name, remote_ip, tunnel_type):
- ofport = br.add_tunnel_port(port_name,
- remote_ip,
- self.local_ip,
- tunnel_type,
- self.vxlan_udp_port,
- self.dont_fragment)
- if ofport == ovs_lib.INVALID_OFPORT:
- LOG.error(_LE("Failed to set-up %(type)s tunnel port to %(ip)s"),
- {'type': tunnel_type, 'ip': remote_ip})
- return 0
- ofport = int(ofport)
- self.tun_ofports[tunnel_type][remote_ip] = ofport
- br.check_in_port_add_tunnel_port(tunnel_type, ofport)
- return ofport
-
- def setup_tunnel_port(self, br, remote_ip, network_type):
- port_name = self._create_tunnel_port_name(network_type, remote_ip)
- if not port_name:
- return 0
- ofport = self._setup_tunnel_port(br,
- port_name,
- remote_ip,
- network_type)
- return ofport
-
- def _remove_tunnel_port(self, br, tun_ofport, tunnel_type):
- for remote_ip, ofport in self.tun_ofports[tunnel_type].items():
- if ofport == tun_ofport:
- br.check_in_port_delete_port(ofport)
- port_name = self._create_tunnel_port_name(tunnel_type,
- remote_ip)
- if port_name:
- br.delete_port(port_name)
- self.tun_ofports[tunnel_type].pop(remote_ip, None)
-
- def cleanup_tunnel_port(self, br, tun_ofport, tunnel_type):
- # Check if this tunnel port is still used
- for lvm in self.local_vlan_map.values():
- if tun_ofport in lvm.tun_ofports:
- break
- # If not, remove it
- else:
- self._remove_tunnel_port(br, tun_ofport, tunnel_type)
-
- def treat_devices_added_or_updated(self, devices):
- resync = False
- all_ports = dict((p.normalized_port_name(), p) for p in
- self._get_ports(self.int_br) if p.is_neutron_port())
- for device in devices:
- LOG.debug("Processing port %s", device)
- if device not in all_ports:
- # The port has disappeared and should not be processed
- # There is no need to put the port DOWN in the plugin as
- # it never went up in the first place
- LOG.info(_LI("Port %s was not found on the integration bridge "
- "and will therefore not be processed"), device)
- continue
- port = all_ports[device]
- try:
- details = self.plugin_rpc.get_device_details(self.context,
- device,
- self.agent_id)
- except Exception as e:
- LOG.debug("Unable to get port details for %(device)s: %(e)s",
- {'device': device, 'e': e})
- resync = True
- continue
- if 'port_id' in details:
- LOG.info(_LI("Port %(device)s updated. Details: %(details)s"),
- {'device': device, 'details': details})
- port.vif_mac = details.get('mac_address')
- self.treat_vif_port(port, details['port_id'],
- details['network_id'],
- details['network_type'],
- details['physical_network'],
- details['segmentation_id'],
- details['admin_state_up'])
-
- # update plugin about port status
- if details.get('admin_state_up'):
- LOG.debug("Setting status for %s to UP", device)
- self.plugin_rpc.update_device_up(
- self.context, device, self.agent_id, cfg.CONF.host)
- else:
- LOG.debug("Setting status for %s to DOWN", device)
- self.plugin_rpc.update_device_down(
- self.context, device, self.agent_id, cfg.CONF.host)
- LOG.info(_LI("Configuration for device %s completed."), device)
- else:
- LOG.warn(_LW("Device %s not defined on plugin"), device)
- if (port and port.ofport != -1):
- self.port_dead(port)
- return resync
-
- def treat_devices_removed(self, devices):
- resync = False
- self.sg_agent.remove_devices_filter(devices)
- for device in devices:
- LOG.info(_LI("Attachment %s removed"), device)
- try:
- self.plugin_rpc.update_device_down(self.context,
- device,
- self.agent_id,
- cfg.CONF.host)
- except Exception as e:
- LOG.debug("port_removed failed for %(device)s: %(e)s",
- {'device': device, 'e': e})
- resync = True
- continue
- self.port_unbound(device)
- return resync
-
- def process_network_ports(self, port_info):
- resync_add = False
- resync_removed = False
- # If there is an exception while processing security groups ports
- # will not be wired anyway, and a resync will be triggered
- self.sg_agent.setup_port_filters(port_info.get('added', set()),
- port_info.get('updated', set()))
- # VIF wiring needs to be performed always for 'new' devices.
- # For updated ports, re-wiring is not needed in most cases, but needs
- # to be performed anyway when the admin state of a device is changed.
- # A device might be both in the 'added' and 'updated'
- # list at the same time; avoid processing it twice.
- devices_added_updated = (port_info.get('added', set()) |
- port_info.get('updated', set()))
- if devices_added_updated:
- start = time.time()
- resync_add = self.treat_devices_added_or_updated(
- devices_added_updated)
- LOG.debug("process_network_ports - iteration:%(iter_num)d - "
- "treat_devices_added_or_updated completed "
- "in %(elapsed).3f",
- {'iter_num': self.iter_num,
- 'elapsed': time.time() - start})
- if 'removed' in port_info:
- start = time.time()
- resync_removed = self.treat_devices_removed(port_info['removed'])
- LOG.debug("process_network_ports - iteration:%(iter_num)d - "
- "treat_devices_removed completed in %(elapsed).3f",
- {'iter_num': self.iter_num,
- 'elapsed': time.time() - start})
- # If one of the above opertaions fails => resync with plugin
- return (resync_add | resync_removed)
-
- def tunnel_sync(self):
- resync = False
- try:
- for tunnel_type in self.tunnel_types:
- self.plugin_rpc.tunnel_sync(self.context,
- self.local_ip,
- tunnel_type,
- cfg.CONF.host)
- except Exception as e:
- LOG.debug("Unable to sync tunnel IP %(local_ip)s: %(e)s",
- {'local_ip': self.local_ip, 'e': e})
- resync = True
- return resync
-
- def _port_info_has_changes(self, port_info):
- return (port_info.get('added') or
- port_info.get('removed') or
- port_info.get('updated'))
-
- def daemon_loop(self):
- # TODO(yamamoto):
- # It might be better to monitor port status async messages
-
- sync = True
- ports = set()
- tunnel_sync = True
- while True:
- start = time.time()
- port_stats = {'regular': {'added': 0, 'updated': 0, 'removed': 0}}
- LOG.debug("Agent daemon_loop - iteration:%d started",
- self.iter_num)
- if sync:
- LOG.info(_LI("Agent out of sync with plugin!"))
- ports.clear()
- sync = False
- # Notify the plugin of tunnel IP
- if self.enable_tunneling and tunnel_sync:
- LOG.info(_LI("Agent tunnel out of sync with plugin!"))
- try:
- tunnel_sync = self.tunnel_sync()
- except Exception:
- LOG.exception(_LE("Error while synchronizing tunnels"))
- tunnel_sync = True
- LOG.debug("Agent daemon_loop - iteration:%(iter_num)d - "
- "starting polling. Elapsed:%(elapsed).3f",
- {'iter_num': self.iter_num,
- 'elapsed': time.time() - start})
- try:
- # Save updated ports dict to perform rollback in
- # case resync would be needed, and then clear
- # self.updated_ports. As the greenthread should not yield
- # between these two statements, this will be thread-safe
- updated_ports_copy = self.updated_ports
- self.updated_ports = set()
- port_info = self.scan_ports(ports, updated_ports_copy)
- ports = port_info['current']
- LOG.debug("Agent daemon_loop - iteration:%(iter_num)d - "
- "port information retrieved. "
- "Elapsed:%(elapsed).3f",
- {'iter_num': self.iter_num,
- 'elapsed': time.time() - start})
- # Secure and wire/unwire VIFs and update their status
- # on Neutron server
- if (self._port_info_has_changes(port_info) or
- self.sg_agent.firewall_refresh_needed()):
- LOG.debug("Starting to process devices in:%s",
- port_info)
- # If treat devices fails - must resync with plugin
- sync = self.process_network_ports(port_info)
- LOG.debug("Agent daemon_loop - "
- "iteration:%(iter_num)d - "
- "ports processed. Elapsed:%(elapsed).3f",
- {'iter_num': self.iter_num,
- 'elapsed': time.time() - start})
- port_stats['regular']['added'] = (
- len(port_info.get('added', [])))
- port_stats['regular']['updated'] = (
- len(port_info.get('updated', [])))
- port_stats['regular']['removed'] = (
- len(port_info.get('removed', [])))
- except Exception:
- LOG.exception(_LE("Error while processing VIF ports"))
- # Put the ports back in self.updated_port
- self.updated_ports |= updated_ports_copy
- sync = True
-
- # sleep till end of polling interval
- elapsed = (time.time() - start)
- LOG.debug("Agent daemon_loop - iteration:%(iter_num)d "
- "completed. Processed ports statistics:"
- "%(port_stats)s. Elapsed:%(elapsed).3f",
- {'iter_num': self.iter_num,
- 'port_stats': port_stats,
- 'elapsed': elapsed})
- if (elapsed < self.polling_interval):
- time.sleep(self.polling_interval - elapsed)
- else:
- LOG.debug("Loop iteration exceeded interval "
- "(%(polling_interval)s vs. %(elapsed)s)!",
- {'polling_interval': self.polling_interval,
- 'elapsed': elapsed})
- self.iter_num = self.iter_num + 1
-
-
-def create_agent_config_map(config):
- """Create a map of agent config parameters.
-
- :param config: an instance of cfg.CONF
- :returns: a map of agent configuration parameters
- """
- try:
- bridge_mappings = n_utils.parse_mappings(config.OVS.bridge_mappings)
- except ValueError as e:
- raise ValueError(_("Parsing bridge_mappings failed: %s.") % e)
- try:
- interface_mappings = n_utils.parse_mappings(
- config.AGENT.physical_interface_mappings)
- except ValueError as e:
- raise ValueError(_("Parsing physical_interface_mappings failed: %s.")
- % e)
-
- kwargs = dict(
- integ_br=config.OVS.integration_bridge,
- local_ip=config.OVS.local_ip,
- interface_mappings=interface_mappings,
- bridge_mappings=bridge_mappings,
- polling_interval=config.AGENT.polling_interval,
- tunnel_types=config.AGENT.tunnel_types,
- )
-
- # Verify the tunnel_types specified are valid
- for tun in kwargs['tunnel_types']:
- if tun not in constants.TUNNEL_NETWORK_TYPES:
- msg = _('Invalid tunnel type specificed: %s'), tun
- raise ValueError(msg)
- if not kwargs['local_ip']:
- msg = _('Tunneling cannot be enabled without a valid local_ip.')
- raise ValueError(msg)
-
- return kwargs
Code Review / openstack-build / neutron-build.git / commitdiff