def setUp(self):
super(TunnelTest, self).setUp()
cfg.CONF.set_override("rpc_backend", "quantum.openstack.common.rpc.impl_fake")
cfg.CONF.set_override("report_interval", 0, "AGENT")
self.mox = mox.Mox()
self.addCleanup(self.mox.UnsetStubs)
self.INT_BRIDGE = "integration_bridge"
self.TUN_BRIDGE = "tunnel_bridge"
self.MAP_TUN_BRIDGE = "tunnel_bridge_mapping"
self.NET_MAPPING = {"net1": self.MAP_TUN_BRIDGE}
self.INT_OFPORT = 11111
self.TUN_OFPORT = 22222
self.MAP_TUN_OFPORT = 33333
self.inta = self.mox.CreateMock(ip_lib.IPDevice)
self.intb = self.mox.CreateMock(ip_lib.IPDevice)
self.inta.link = self.mox.CreateMock(ip_lib.IpLinkCommand)
self.intb.link = self.mox.CreateMock(ip_lib.IpLinkCommand)
self.mox.StubOutClassWithMocks(ovs_lib, "OVSBridge")
self.mock_int_bridge = ovs_lib.OVSBridge(self.INT_BRIDGE, "sudo")
self.mock_int_bridge.delete_port("patch-tun")
self.mock_int_bridge.remove_all_flows()
self.mock_int_bridge.add_flow(priority=1, actions="normal")
self.mock_map_tun_bridge = ovs_lib.OVSBridge(self.MAP_TUN_BRIDGE, "sudo")
self.mock_map_tun_bridge.remove_all_flows()
self.mock_map_tun_bridge.add_flow(priority=1, actions="normal")
self.mock_int_bridge.delete_port("int-tunnel_bridge_mapping")
self.mock_map_tun_bridge.delete_port("phy-tunnel_bridge_mapping")
self.mock_int_bridge.add_port(self.inta)
self.mock_map_tun_bridge.add_port(self.intb)
self.inta.link.set_up()
self.intb.link.set_up()
self.mock_int_bridge.add_flow(priority=2, in_port=None, actions="drop")
self.mock_map_tun_bridge.add_flow(priority=2, in_port=None, actions="drop")
self.mock_tun_bridge = ovs_lib.OVSBridge(self.TUN_BRIDGE, "sudo")
self.mock_tun_bridge.reset_bridge()
self.mock_int_bridge.add_patch_port("patch-tun", "patch-int").AndReturn(self.TUN_OFPORT)
self.mock_tun_bridge.add_patch_port("patch-int", "patch-tun").AndReturn(self.INT_OFPORT)
self.mock_tun_bridge.remove_all_flows()
self.mock_tun_bridge.add_flow(priority=1, actions="drop")
self.mox.StubOutWithMock(ip_lib, "device_exists")
ip_lib.device_exists("tunnel_bridge_mapping", "sudo").AndReturn(True)
ip_lib.device_exists("int-tunnel_bridge_mapping", "sudo").AndReturn(True)
self.mox.StubOutWithMock(ip_lib.IpLinkCommand, "delete")
ip_lib.IPDevice("int-tunnel_bridge_mapping").link.delete()
self.mox.StubOutClassWithMocks(ip_lib, "IPWrapper")
ip_lib.IPWrapper("sudo").add_veth("int-tunnel_bridge_mapping", "phy-tunnel_bridge_mapping").AndReturn(
[self.inta, self.intb]
)
self.mock_int_bridge.get_local_port_mac().AndReturn("000000000001")
def setup_physical_bridges(self, bridge_mappings):
'''Setup the physical network bridges.
Creates physical network bridges and links them to the
integration bridge using veths.
:param bridge_mappings: map physical network names to bridge names.
'''
self.phys_brs = {}
self.int_ofports = {}
self.phys_ofports = {}
ip_wrapper = ip_lib.IPWrapper(self.root_helper)
for physical_network, bridge in bridge_mappings.iteritems():
LOG.info(
_("Mapping physical network %(physical_network)s to "
"bridge %(bridge)s"), {
'physical_network': physical_network,
'bridge': bridge
})
# setup physical bridge
if not ip_lib.device_exists(bridge, self.root_helper):
LOG.error(
_("Bridge %(bridge)s for physical network "
"%(physical_network)s does not exist. Agent "
"terminated!"), {
'physical_network': physical_network,
'bridge': bridge
})
sys.exit(1)
br = ovs_lib.OVSBridge(bridge, self.root_helper)
br.remove_all_flows()
br.add_flow(priority=1, actions="normal")
self.phys_brs[physical_network] = br
# create veth to patch physical bridge with integration bridge
int_veth_name = constants.VETH_INTEGRATION_PREFIX + bridge
self.int_br.delete_port(int_veth_name)
phys_veth_name = constants.VETH_PHYSICAL_PREFIX + bridge
br.delete_port(phys_veth_name)
if ip_lib.device_exists(int_veth_name, self.root_helper):
ip_lib.IPDevice(int_veth_name, self.root_helper).link.delete()
int_veth, phys_veth = ip_wrapper.add_veth(int_veth_name,
phys_veth_name)
self.int_ofports[physical_network] = self.int_br.add_port(int_veth)
self.phys_ofports[physical_network] = br.add_port(phys_veth)
# block all untranslated traffic over veth between bridges
self.int_br.add_flow(priority=2,
in_port=self.int_ofports[physical_network],
actions="drop")
br.add_flow(priority=2,
in_port=self.phys_ofports[physical_network],
actions="drop")
# enable veth to pass traffic
int_veth.link.set_up()
phys_veth.link.set_up()
def setup_physical_bridges(self, bridge_mappings):
'''Setup the physical network bridges.
Creates physical network bridges and links them to the
integration bridge using veths.
:param bridge_mappings: map physical network names to bridge names.
'''
self.phys_brs = {}
self.int_ofports = {}
self.phys_ofports = {}
ip_wrapper = ip_lib.IPWrapper(self.root_helper)
for physical_network, bridge in bridge_mappings.iteritems():
LOG.info(_("Mapping physical network %(physical_network)s to "
"bridge %(bridge)s"),
{'physical_network': physical_network,
'bridge': bridge})
# setup physical bridge
if not ip_lib.device_exists(bridge, self.root_helper):
LOG.error(_("Bridge %(bridge)s for physical network "
"%(physical_network)s does not exist. Agent "
"terminated!"),
{'physical_network': physical_network,
'bridge': bridge})
sys.exit(1)
br = ovs_lib.OVSBridge(bridge, self.root_helper)
br.remove_all_flows()
br.add_flow(priority=1, actions="normal")
self.phys_brs[physical_network] = br
# create veth to patch physical bridge with integration bridge
int_veth_name = constants.VETH_INTEGRATION_PREFIX + bridge
self.int_br.delete_port(int_veth_name)
phys_veth_name = constants.VETH_PHYSICAL_PREFIX + bridge
br.delete_port(phys_veth_name)
if ip_lib.device_exists(int_veth_name, self.root_helper):
ip_lib.IPDevice(int_veth_name, self.root_helper).link.delete()
int_veth, phys_veth = ip_wrapper.add_veth(int_veth_name,
phys_veth_name)
self.int_ofports[physical_network] = self.int_br.add_port(int_veth)
self.phys_ofports[physical_network] = br.add_port(phys_veth)
# block all untranslated traffic over veth between bridges
self.int_br.add_flow(priority=2,
in_port=self.int_ofports[physical_network],
actions="drop")
br.add_flow(priority=2,
in_port=self.phys_ofports[physical_network],
actions="drop")
# enable veth to pass traffic
int_veth.link.set_up()
phys_veth.link.set_up()
def setup(self, network, reuse_existing=False):
"""Create and initialize a device for network's DHCP on this host."""
device_id = self.get_device_id(network)
port = self.plugin.get_dhcp_port(network.id, device_id)
interface_name = self.get_interface_name(network, port)
if self.conf.use_namespaces:
namespace = NS_PREFIX + network.id
else:
namespace = None
if ip_lib.device_exists(interface_name,
self.root_helper,
namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
LOG.debug(_('Reusing existing device: %s.'), interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address,
namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = '%s/%s' % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
if (self.conf.enable_isolated_metadata and
self.conf.use_namespaces):
ip_cidrs.append(METADATA_DEFAULT_IP)
self.driver.init_l3(interface_name, ip_cidrs,
namespace=namespace)
# ensure that the dhcp interface is first in the list
if namespace is None:
device = ip_lib.IPDevice(interface_name,
self.root_helper)
device.route.pullup_route(interface_name)
if self.conf.enable_metadata_network:
meta_cidr = netaddr.IPNetwork(METADATA_DEFAULT_IP)
metadata_subnets = [s for s in network.subnets if
netaddr.IPNetwork(s.cidr) in meta_cidr]
if metadata_subnets:
# Add a gateway so that packets can be routed back to VMs
device = ip_lib.IPDevice(interface_name,
self.root_helper,
namespace)
# Only 1 subnet on metadata access network
gateway_ip = metadata_subnets[0].gateway_ip
device.route.add_gateway(gateway_ip)
return interface_name
def plug(self, network_id, port_id, device_name, mac_address):
"""Plug in the interface."""
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(device_name,
self.conf.root_helper,
namespace=network_id):
utils.execute(['ovs-vsctl',
'--', '--may-exist', 'add-port', bridge,
device_name,
'--', 'set', 'Interface', device_name,
'type=internal',
'--', 'set', 'Interface', device_name,
'external-ids:iface-id=%s' % port_id,
'--', 'set', 'Interface', device_name,
'external-ids:iface-status=active',
'--', 'set', 'Interface', device_name,
'external-ids:attached-mac=%s' %
mac_address],
self.conf.root_helper)
ip = ip_lib.IPWrapper(self.conf.root_helper)
device = ip.device(device_name)
device.link.set_address(mac_address)
if self.conf.network_device_mtu:
device.link.set_mtu(self.conf.network_device_mtu)
namespace = ip.ensure_namespace(network_id)
namespace.add_device_to_namespace(device)
device.link.set_up()
else:
LOG.error(_('Device %s already exists') % device)
def create_probe(self, network_id, device_owner='network'):
network = self._get_network(network_id)
bridge = None
if network.external:
bridge = self.conf.external_network_bridge
port = self._create_port(network, device_owner)
port.network = network
interface_name = self.driver.get_device_name(port)
namespace = None
if self.conf.use_namespaces:
namespace = self._get_namespace(port)
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
LOG.debug(_('Reusing existing device: %s.'), interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address,
bridge=bridge,
namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = '%s/%s' % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
self.driver.init_l3(interface_name, ip_cidrs, namespace=namespace)
return port
def plug(self, network_id, port_id, device_name, mac_address, bridge=None, namespace=None, prefix=None):
"""Plugin the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(device_name, self.conf.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.conf.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
root_veth, ns_veth = ip.add_veth(tap_name, device_name)
self._ovs_add_port(bridge, tap_name, port_id, mac_address, internal=False)
ns_veth.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_veth.link.set_mtu(self.conf.network_device_mtu)
root_veth.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_veth)
root_veth.link.set_up()
ns_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists") % device_name)
def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plug in the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(
device_name, self.conf.root_helper, namespace=namespace):
self._ovs_add_port(bridge, device_name, port_id, mac_address)
ip = ip_lib.IPWrapper(self.conf.root_helper)
device = ip.device(device_name)
device.link.set_address(mac_address)
if self.conf.network_device_mtu:
device.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(device)
device.link.set_up()
def external_gateway_added(self, ri, ex_gw_port, internal_cidrs):
interface_name = self.get_external_device_name(ex_gw_port['id'])
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
if not ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.plug(ex_gw_port['network_id'],
ex_gw_port['id'], interface_name,
ex_gw_port['mac_address'],
bridge=self.conf.external_network_bridge,
namespace=ri.ns_name(),
prefix=EXTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [ex_gw_port['ip_cidr']],
namespace=ri.ns_name())
ip_address = ex_gw_port['ip_cidr'].split('/')[0]
self._send_gratuitous_arp_packet(ri, interface_name, ip_address)
gw_ip = ex_gw_port['subnet']['gateway_ip']
if ex_gw_port['subnet']['gateway_ip']:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
if self.conf.use_namespaces:
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=ri.ns_name())
ip_wrapper.netns.execute(cmd, check_exit_code=False)
else:
utils.execute(cmd, check_exit_code=False,
root_helper=self.root_helper)
for (c, r) in self.external_gateway_nat_rules(ex_gw_ip,
internal_cidrs,
interface_name):
ri.iptables_manager.ipv4['nat'].add_rule(c, r)
ri.iptables_manager.apply()
def _process_routers(self, routers):
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
LOG.error(_("The external network bridge '%s' does not exist"),
self.conf.external_network_bridge)
return
target_ex_net_id = self._fetch_external_net_id()
for r in routers:
if not r['admin_state_up']:
continue
# If namespaces are disabled, only process the router associated
# with the configured agent id.
if (not self.conf.use_namespaces and
r['id'] != self.conf.router_id):
continue
ex_net_id = (r['external_gateway_info'] or {}).get('network_id')
if not ex_net_id and not self.conf.handle_internal_only_routers:
continue
if ex_net_id and ex_net_id != target_ex_net_id:
continue
if r['id'] not in self.router_info:
self._router_added(r['id'])
ri = self.router_info[r['id']]
ri.router = r
self.process_router(ri)
def create_probe(self, network_id):
network = self._get_network(network_id)
bridge = None
if network.external:
bridge = self.conf.external_network_bridge
port = self._create_port(network)
port.network = network
interface_name = self.driver.get_device_name(port)
namespace = None
if self.conf.use_namespaces:
namespace = self._get_namespace(port)
if ip_lib.device_exists(interface_name,
self.conf.root_helper, namespace):
LOG.debug(_('Reusing existing device: %s.'), interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address,
bridge=bridge,
namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = '%s/%s' % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
self.driver.init_l3(interface_name, ip_cidrs, namespace=namespace)
return port
def plug(self, network_id, port_id, device_name, mac_address,
bridge=None, namespace=None, prefix=None):
"""Plug in the interface."""
if not ip_lib.device_exists(device_name,
self.root_helper,
namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
root_dev, ns_dev = ip.add_veth(tap_name, device_name)
self._ivs_add_port(tap_name, port_id, mac_address)
ns_dev = ip.device(device_name)
ns_dev.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_dev.link.set_mtu(self.conf.network_device_mtu)
root_dev.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_dev)
ns_dev.link.set_up()
root_dev.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plugin the interface."""
if not ip_lib.device_exists(
device_name, self.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
# Enable agent to define the prefix
if prefix:
tap_name = device_name.replace(prefix, 'tap')
else:
tap_name = device_name.replace(self.DEV_NAME_PREFIX, 'tap')
# Create ns_veth in a namespace if one is configured.
root_veth, ns_veth = ip.add_veth(tap_name,
device_name,
namespace2=namespace)
ns_veth.link.set_address(mac_address)
if self.conf.network_device_mtu:
root_veth.link.set_mtu(self.conf.network_device_mtu)
ns_veth.link.set_mtu(self.conf.network_device_mtu)
root_veth.link.set_up()
ns_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def plug(self, network_id, port_id, device_name, mac_address,
bridge=None, namespace=None, prefix=None):
"""Plugin the interface."""
if not ip_lib.device_exists(device_name,
self.root_helper,
namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
# Enable agent to define the prefix
if prefix:
tap_name = device_name.replace(prefix, 'tap')
else:
tap_name = device_name.replace(self.DEV_NAME_PREFIX, 'tap')
root_veth, ns_veth = ip.add_veth(tap_name, device_name)
ns_veth.link.set_address(mac_address)
if self.conf.network_device_mtu:
root_veth.link.set_mtu(self.conf.network_device_mtu)
ns_veth.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_veth)
root_veth.link.set_up()
ns_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def _plug(self, namespace, port, reuse_existing=True):
self.vip_plug_callback('plug', port)
interface_name = self.vif_driver.get_device_name(Wrap(port))
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name
)
else:
self.vif_driver.plug(
port['network_id'],
port['id'],
interface_name,
port['mac_address'],
namespace=namespace
)
cidrs = [
'%s/%s' % (ip['ip_address'],
netaddr.IPNetwork(ip['subnet']['cidr']).prefixlen)
for ip in port['fixed_ips']
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
gw_ip = port['fixed_ips'][0]['subnet'].get('gateway_ip')
if gw_ip:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
def setup(self, network, reuse_existing=False):
"""Create and initialize a device for network's DHCP on this host."""
device_id = self.get_device_id(network)
port = self.plugin.get_dhcp_port(network.id, device_id)
interface_name = self.get_interface_name(network, port)
if self.conf.use_namespaces:
namespace = NS_PREFIX + network.id
else:
namespace = None
if ip_lib.device_exists(interface_name,
self.root_helper,
namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
LOG.debug(_('Reusing existing device: %s.'), interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address,
namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = '%s/%s' % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
if (self.conf.enable_isolated_metadata and
self.conf.use_namespaces):
ip_cidrs.append(METADATA_DEFAULT_IP)
self.driver.init_l3(interface_name, ip_cidrs,
namespace=namespace)
# ensure that the dhcp interface is first in the list
if namespace is None:
device = ip_lib.IPDevice(interface_name,
self.root_helper)
device.route.pullup_route(interface_name)
if self.conf.enable_metadata_network:
meta_cidr = netaddr.IPNetwork(METADATA_DEFAULT_IP)
metadata_subnets = [s for s in network.subnets if
netaddr.IPNetwork(s.cidr) in meta_cidr]
if metadata_subnets:
# Add a gateway so that packets can be routed back to VMs
device = ip_lib.IPDevice(interface_name,
self.root_helper,
namespace)
# Only 1 subnet on metadata access network
gateway_ip = metadata_subnets[0].gateway_ip
device.route.add_gateway(gateway_ip)
return interface_name
def external_gateway_added(self, ri, ex_gw_port, internal_cidrs):
interface_name = self.get_external_device_name(ex_gw_port['id'])
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
if not ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.plug(None, ex_gw_port['id'], interface_name,
ex_gw_port['mac_address'],
bridge=self.conf.external_network_bridge,
namespace=ri.ns_name(),
prefix=EXTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [ex_gw_port['ip_cidr']],
namespace=ri.ns_name())
gw_ip = ex_gw_port['subnet']['gateway_ip']
if ex_gw_port['subnet']['gateway_ip']:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(self.conf.root_helper,
namespace=ri.ns_name())
ip_wrapper.netns.execute(cmd)
for (c, r) in self.external_gateway_filter_rules():
ri.iptables_manager.ipv4['filter'].add_rule(c, r)
for (c, r) in self.external_gateway_nat_rules(ex_gw_ip,
internal_cidrs):
ri.iptables_manager.ipv4['nat'].add_rule(c, r)
ri.iptables_manager.apply()
def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plug in the interface."""
if not ip_lib.device_exists(
device_name, self.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
root_dev, ns_dev = ip.add_veth(tap_name, device_name)
self._ivs_add_port(tap_name, port_id, mac_address)
ns_dev = ip.device(device_name)
ns_dev.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_dev.link.set_mtu(self.conf.network_device_mtu)
root_dev.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_dev)
ns_dev.link.set_up()
root_dev.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def plug(self, network_id, port_id, device_name, mac_address,
bridge=None, namespace=None, prefix=None):
"""Plugin the interface."""
if not ip_lib.device_exists(device_name,
self.conf.root_helper,
namespace=namespace):
ip = ip_lib.IPWrapper(self.conf.root_helper)
# Enable agent to define the prefix
if prefix:
tap_name = device_name.replace(prefix, 'tap')
else:
tap_name = device_name.replace(self.DEV_NAME_PREFIX, 'tap')
root_veth, dhcp_veth = ip.add_veth(tap_name, device_name)
root_veth.link.set_address(mac_address)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(dhcp_veth)
root_veth.link.set_up()
dhcp_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists") % device_name)
def setup(self, network, reuse_existing=False):
"""Create and initialize a device for network's DHCP on this host."""
device_id = self.get_device_id(network)
port = self.plugin.get_dhcp_port(network.id, device_id)
interface_name = self.get_interface_name(network, port)
if self.conf.use_namespaces:
namespace = NS_PREFIX + network.id
else:
namespace = None
if ip_lib.device_exists(interface_name, self.conf.root_helper,
namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
LOG.debug(_('Reusing existing device: %s.') % interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address,
namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = '%s/%s' % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
self.driver.init_l3(interface_name, ip_cidrs, namespace=namespace)
return interface_name
def _process_routers(self, routers):
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
LOG.error(
_("The external network bridge '%s' does not exist") %
self.conf.external_network_bridge)
return
target_ex_net_id = self._fetch_external_net_id()
for r in routers:
if not r['admin_state_up']:
continue
# If namespaces are disabled, only process the router associated
# with the configured agent id.
if (not self.conf.use_namespaces
and r['id'] != self.conf.router_id):
continue
ex_net_id = (r['external_gateway_info'] or {}).get('network_id')
if not ex_net_id and not self.conf.handle_internal_only_routers:
continue
if ex_net_id and ex_net_id != target_ex_net_id:
continue
if r['id'] not in self.router_info:
self._router_added(r['id'])
ri = self.router_info[r['id']]
ri.router = r
self.process_router(ri)
def setup(self, network, reuse_existing=False):
"""Create and initialize a device for network's DHCP on this host."""
device_id = self.get_device_id(network)
port = self.plugin.get_dhcp_port(network.id, device_id)
interface_name = self.get_interface_name(network, port)
if self.conf.use_namespaces:
namespace = NS_PREFIX + network.id
else:
namespace = None
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(dev_name=interface_name)
LOG.debug(_("Reusing existing device: %s."), interface_name)
else:
self.driver.plug(network.id, port.id, interface_name, port.mac_address, namespace=namespace)
ip_cidrs = []
for fixed_ip in port.fixed_ips:
subnet = fixed_ip.subnet
net = netaddr.IPNetwork(subnet.cidr)
ip_cidr = "%s/%s" % (fixed_ip.ip_address, net.prefixlen)
ip_cidrs.append(ip_cidr)
self.driver.init_l3(interface_name, ip_cidrs, namespace=namespace)
# ensure that the dhcp interface is first in the list
if namespace is None:
device = ip_lib.IPDevice(interface_name, self.root_helper)
device.route.pullup_route(interface_name)
return interface_name
def __init__(self, conf):
self.conf = conf
self.router_info = {}
if not conf.interface_driver:
LOG.error(_('You must specify an interface driver'))
sys.exit(1)
try:
self.driver = importutils.import_object(conf.interface_driver,
conf)
except:
LOG.exception(
_("Error importing interface driver '%s'" %
conf.interface_driver))
sys.exit(1)
self.polling_interval = conf.polling_interval
if not ip_lib.device_exists(self.conf.external_network_bridge):
raise Exception("external network bridge '%s' does not exist" %
self.conf.external_network_bridge)
self.qclient = client.Client(username=self.conf.admin_user,
password=self.conf.admin_password,
tenant_name=self.conf.admin_tenant_name,
auth_url=self.conf.auth_url,
auth_strategy=self.conf.auth_strategy,
auth_region=self.conf.auth_region)
self._destroy_all_router_namespaces()
def external_gateway_added(self, ri, ex_gw_port, internal_cidrs):
interface_name = self.get_external_device_name(ex_gw_port['id'])
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
if not ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.plug(ex_gw_port['network_id'],
ex_gw_port['id'],
interface_name,
ex_gw_port['mac_address'],
bridge=self.conf.external_network_bridge,
namespace=ri.ns_name(),
prefix=EXTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [ex_gw_port['ip_cidr']],
namespace=ri.ns_name())
ip_address = ex_gw_port['ip_cidr'].split('/')[0]
self._send_gratuitous_arp_packet(ri, interface_name, ip_address)
gw_ip = ex_gw_port['subnet']['gateway_ip']
if ex_gw_port['subnet']['gateway_ip']:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
if self.conf.use_namespaces:
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=ri.ns_name())
ip_wrapper.netns.execute(cmd, check_exit_code=False)
else:
utils.execute(cmd,
check_exit_code=False,
root_helper=self.root_helper)
for (c, r) in self.external_gateway_nat_rules(ex_gw_ip, internal_cidrs,
interface_name):
ri.iptables_manager.ipv4['nat'].add_rule(c, r)
ri.iptables_manager.apply()
def __init__(self, conf):
self.conf = conf
self.router_info = {}
if not conf.interface_driver:
LOG.error(_('You must specify an interface driver'))
sys.exit(1)
try:
self.driver = importutils.import_object(conf.interface_driver,
conf)
except:
LOG.exception(_("Error importing interface driver '%s'"
% conf.interface_driver))
sys.exit(1)
self.polling_interval = conf.polling_interval
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
raise Exception("external network bridge '%s' does not exist"
% self.conf.external_network_bridge)
self.qclient = client.Client(
username=self.conf.admin_user,
password=self.conf.admin_password,
tenant_name=self.conf.admin_tenant_name,
auth_url=self.conf.auth_url,
auth_strategy=self.conf.auth_strategy,
auth_region=self.conf.auth_region
)
self._destroy_all_router_namespaces()
def _plug(self, namespace, port, reuse_existing=True):
self.vip_plug_callback('plug', port)
interface_name = self.vif_driver.get_device_name(Wrap(port))
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name
)
else:
self.vif_driver.plug(
port['network_id'],
port['id'],
interface_name,
port['mac_address'],
namespace=namespace
)
cidrs = [
'%s/%s' % (ip['ip_address'],
netaddr.IPNetwork(ip['subnet']['cidr']).prefixlen)
for ip in port['fixed_ips']
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
gw_ip = port['fixed_ips'][0]['subnet'].get('gateway_ip')
if gw_ip:
cmd = ['route', 'add', 'default', 'gw', gw_ip]
ip_wrapper = ip_lib.IPWrapper(self.root_helper,
namespace=namespace)
ip_wrapper.netns.execute(cmd, check_exit_code=False)
def internal_network_removed(self, ri, port_id, internal_cidr):
interface_name = self.get_internal_device_name(port_id)
if ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name, namespace=ri.ns_name(),
prefix=INTERNAL_DEV_PREFIX)
def internal_network_removed(self, ri, port_id, internal_cidr):
interface_name = self.get_internal_device_name(port_id)
if ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name,
namespace=ri.ns_name(),
prefix=INTERNAL_DEV_PREFIX)
def external_gateway_removed(self, ri, ex_gw_port, interface_name,
internal_cidrs):
if ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name,
bridge=self.conf.external_network_bridge,
namespace=ri.ns_name(),
prefix=EXTERNAL_DEV_PREFIX)
def external_gateway_removed(self, ri, ex_gw_port,
interface_name, internal_cidrs):
if ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name,
bridge=self.conf.external_network_bridge,
namespace=ri.ns_name(),
prefix=EXTERNAL_DEV_PREFIX)
def delete_quantum_ports(ports, root_helper):
"""Delete non-internal ports created by Quantum
Non-internal OVS ports need to be removed manually.
"""
for port in ports:
if ip_lib.device_exists(port):
device = ip_lib.IPDevice(port, root_helper)
device.link.delete()
LOG.info(_("Delete %s"), port)
def delete_quantum_ports(ports, root_helper):
"""Delete non-internal ports created by Quantum
Non-internal OVS ports need to be removed manually.
"""
for port in ports:
if ip_lib.device_exists(port):
device = ip_lib.IPDevice(port, root_helper)
device.link.delete()
LOG.info(_("Delete %s"), port)
def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plug in the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(
device_name, self.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
if self.conf.ovs_use_veth:
# Create ns_dev in a namespace if one is configured.
root_dev, ns_dev = ip.add_veth(tap_name,
device_name,
namespace2=namespace)
else:
ns_dev = ip.device(device_name)
internal = not self.conf.ovs_use_veth
self._ovs_add_port(bridge,
tap_name,
port_id,
mac_address,
internal=internal)
ns_dev.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_dev.link.set_mtu(self.conf.network_device_mtu)
if self.conf.ovs_use_veth:
root_dev.link.set_mtu(self.conf.network_device_mtu)
# Add an interface created by ovs to the namespace.
if not self.conf.ovs_use_veth and namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_dev)
ns_dev.link.set_up()
if self.conf.ovs_use_veth:
root_dev.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def internal_network_removed(self, ri, ex_gw_port, port_id, internal_cidr):
interface_name = self.get_internal_device_name(port_id)
if ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name)
if ex_gw_port:
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
for c, r in self.internal_network_nat_rules(
ex_gw_ip, internal_cidr):
ri.iptables_manager.ipv4['nat'].remove_rule(c, r)
ri.iptables_manager.apply()
def internal_network_removed(self, ri, ex_gw_port, port_id, internal_cidr):
interface_name = self.get_internal_device_name(port_id)
if ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name)
if ex_gw_port:
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
for c, r in self.internal_network_nat_rules(ex_gw_ip,
internal_cidr):
ri.iptables_manager.ipv4['nat'].remove_rule(c, r)
ri.iptables_manager.apply()
def plug(self, network_id, port_id, device_name, mac_address):
"""Plugin the interface."""
if not ip_lib.device_exists(device_name):
device = ip_lib.IPDevice(device_name, self.conf.root_helper)
try:
# First, try with 'ip'
device.tuntap.add()
except RuntimeError, e:
# Second option: tunctl
utils.execute(["tunctl", "-b", "-t", device_name], self.conf.root_helper)
device.link.set_address(mac_address)
device.link.set_up()
def internal_network_added(self, ri, network_id, port_id,
internal_cidr, mac_address):
interface_name = self.get_internal_device_name(port_id)
if not ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.plug(network_id, port_id, interface_name, mac_address,
namespace=ri.ns_name(),
prefix=INTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [internal_cidr],
namespace=ri.ns_name())
ip_address = internal_cidr.split('/')[0]
self._send_gratuitous_arp_packet(ri, interface_name, ip_address)
def external_gateway_removed(self, ri, ex_gw_port, internal_cidrs):
interface_name = self.get_external_device_name(ex_gw_port['id'])
if ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name)
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
for c, r in self.external_gateway_filter_rules():
ri.iptables_manager.ipv4['filter'].remove_rule(c, r)
for c, r in self.external_gateway_nat_rules(ex_gw_ip, internal_cidrs):
ri.iptables_manager.ipv4['nat'].remove_rule(c, r)
ri.iptables_manager.apply()
def external_gateway_removed(self, ri, ex_gw_port, internal_cidrs):
interface_name = self.get_external_device_name(ex_gw_port['id'])
if ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.unplug(interface_name)
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
for c, r in self.external_gateway_filter_rules():
ri.iptables_manager.ipv4['filter'].remove_rule(c, r)
for c, r in self.external_gateway_nat_rules(ex_gw_ip, internal_cidrs,
interface_name):
ri.iptables_manager.ipv4['nat'].remove_rule(c, r)
ri.iptables_manager.apply()
def setup(self, network, reuse_existing=False):
port = self._get_or_create_port(network)
interface_name = self.get_interface_name(network, port)
if ip_lib.device_exists(interface_name):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(
dev_name=interface_name)
LOG.debug(_('Reusing existing device: %s.') % interface_name)
else:
self.driver.plug(network.id,
port.id,
interface_name,
port.mac_address)
self.driver.init_l3(port, interface_name)
def _plug(self, namespace, port, reuse_existing=True):
self.vip_plug_callback("plug", port)
interface_name = self.vif_driver.get_device_name(Wrap(port))
if ip_lib.device_exists(interface_name, self.root_helper, namespace):
if not reuse_existing:
raise exceptions.PreexistingDeviceFailure(dev_name=interface_name)
else:
self.vif_driver.plug(
port["network_id"], port["id"], interface_name, port["mac_address"], namespace=namespace
)
cidrs = [
"%s/%s" % (ip["ip_address"], netaddr.IPNetwork(ip["subnet"]["cidr"]).prefixlen) for ip in port["fixed_ips"]
]
self.vif_driver.init_l3(interface_name, cidrs, namespace=namespace)
def internal_network_added(self, ri, network_id, port_id, internal_cidr,
mac_address):
interface_name = self.get_internal_device_name(port_id)
if not ip_lib.device_exists(interface_name,
root_helper=self.root_helper,
namespace=ri.ns_name()):
self.driver.plug(network_id,
port_id,
interface_name,
mac_address,
namespace=ri.ns_name(),
prefix=INTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [internal_cidr],
namespace=ri.ns_name())
ip_address = internal_cidr.split('/')[0]
self._send_gratuitous_arp_packet(ri, interface_name, ip_address)
def plug(self, network_id, port_id, device_name, mac_address):
"""Plug in the interface."""
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(device_name):
utils.execute(
[
"ovs-vsctl",
"--",
"--may-exist",
"add-port",
bridge,
device_name,
"--",
"set",
"Interface",
device_name,
"type=internal",
"--",
"set",
"Interface",
device_name,
"external-ids:iface-id=%s" % port_id,
"--",
"set",
"Interface",
device_name,
"external-ids:iface-status=active",
"--",
"set",
"Interface",
device_name,
"external-ids:attached-mac=%s" % mac_address,
],
self.conf.root_helper,
)
device = ip_lib.IPDevice(device_name, self.conf.root_helper)
device.link.set_address(mac_address)
if self.conf.network_device_mtu:
device.link.set_mtu(self.conf.network_device_mtu)
device.link.set_up()
else:
LOG.error(_("Device %s already exists") % device)
def _process_routers(self, routers, all_routers=False):
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
LOG.error(_("The external network bridge '%s' does not exist"),
self.conf.external_network_bridge)
return
target_ex_net_id = self._fetch_external_net_id()
# if routers are all the routers we have (They are from router sync on
# starting or when error occurs during running), we seek the
# routers which should be removed.
# If routers are from server side notification, we seek them
# from subset of incoming routers and ones we have now.
if all_routers:
prev_router_ids = set(self.router_info)
else:
prev_router_ids = set(self.router_info) & set(
[router['id'] for router in routers])
cur_router_ids = set()
for r in routers:
if not r['admin_state_up']:
continue
# If namespaces are disabled, only process the router associated
# with the configured agent id.
if (not self.conf.use_namespaces and
r['id'] != self.conf.router_id):
continue
ex_net_id = (r['external_gateway_info'] or {}).get('network_id')
if not ex_net_id and not self.conf.handle_internal_only_routers:
continue
if ex_net_id and ex_net_id != target_ex_net_id:
continue
cur_router_ids.add(r['id'])
if r['id'] not in self.router_info:
self._router_added(r['id'], r)
ri = self.router_info[r['id']]
ri.router = r
self.process_router(ri)
# identify and remove routers that no longer exist
for router_id in prev_router_ids - cur_router_ids:
self._router_removed(router_id)
def _process_routers(self, routers, all_routers=False):
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
LOG.error(_("The external network bridge '%s' does not exist"),
self.conf.external_network_bridge)
return
target_ex_net_id = self._fetch_external_net_id()
# if routers are all the routers we have (They are from router sync on
# starting or when error occurs during running), we seek the
# routers which should be removed.
# If routers are from server side notification, we seek them
# from subset of incoming routers and ones we have now.
if all_routers:
prev_router_ids = set(self.router_info)
else:
prev_router_ids = set(self.router_info) & set(
[router['id'] for router in routers])
cur_router_ids = set()
for r in routers:
if not r['admin_state_up']:
continue
# If namespaces are disabled, only process the router associated
# with the configured agent id.
if (not self.conf.use_namespaces
and r['id'] != self.conf.router_id):
continue
ex_net_id = (r['external_gateway_info'] or {}).get('network_id')
if not ex_net_id and not self.conf.handle_internal_only_routers:
continue
if ex_net_id and ex_net_id != target_ex_net_id:
continue
cur_router_ids.add(r['id'])
if r['id'] not in self.router_info:
self._router_added(r['id'], r)
ri = self.router_info[r['id']]
ri.router = r
self.process_router(ri)
# identify and remove routers that no longer exist
for router_id in prev_router_ids - cur_router_ids:
self._router_removed(router_id)
def plug(self, network_id, port_id, device_name, mac_address,
bridge=None, namespace=None, prefix=None):
"""Plug in the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(device_name,
self.root_helper,
namespace=namespace):
ip = ip_lib.IPWrapper(self.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
if self.conf.ovs_use_veth:
# Create ns_dev in a namespace if one is configured.
root_dev, ns_dev = ip.add_veth(tap_name,
device_name,
namespace2=namespace)
else:
ns_dev = ip.device(device_name)
internal = not self.conf.ovs_use_veth
self._ovs_add_port(bridge, tap_name, port_id, mac_address,
internal=internal)
ns_dev.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_dev.link.set_mtu(self.conf.network_device_mtu)
if self.conf.ovs_use_veth:
root_dev.link.set_mtu(self.conf.network_device_mtu)
# Add an interface created by ovs to the namespace.
if not self.conf.ovs_use_veth and namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_dev)
ns_dev.link.set_up()
if self.conf.ovs_use_veth:
root_dev.link.set_up()
else:
LOG.warn(_("Device %s already exists"), device_name)
def do_single_loop(self):
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
LOG.error(_("External network bridge '%s' does not exist"),
self.conf.external_network_bridge)
return
prev_router_ids = set(self.router_info)
cur_router_ids = set()
target_ex_net_id = self._fetch_external_net_id()
# identify and update new or modified routers
for r in self.qclient.list_routers()['routers']:
if not r['admin_state_up']:
continue
ex_net_id = (r['external_gateway_info'] and
r['external_gateway_info'].get('network_id'))
if not ex_net_id and not self.conf.handle_internal_only_routers:
continue
if ex_net_id and ex_net_id != target_ex_net_id:
continue
# If namespaces are disabled, only process the router associated
# with the configured agent id.
if (self.conf.use_namespaces or
r['id'] == self.conf.router_id):
cur_router_ids.add(r['id'])
else:
continue
if r['id'] not in self.router_info:
self._router_added(r['id'])
ri = self.router_info[r['id']]
self.process_router(ri)
# identify and remove routers that no longer exist
for router_id in prev_router_ids - cur_router_ids:
self._router_removed(router_id)
prev_router_ids = cur_router_ids
def internal_network_added(self, ri, ex_gw_port, network_id, port_id,
internal_cidr, mac_address):
interface_name = self.get_internal_device_name(port_id)
if not ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.plug(network_id, port_id, interface_name, mac_address,
namespace=ri.ns_name(),
prefix=INTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [internal_cidr],
namespace=ri.ns_name())
if ex_gw_port:
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
for c, r in self.internal_network_nat_rules(ex_gw_ip,
internal_cidr):
ri.iptables_manager.ipv4['nat'].add_rule(c, r)
ri.iptables_manager.apply()
def do_single_loop(self):
if (self.conf.external_network_bridge and
not ip_lib.device_exists(self.conf.external_network_bridge)):
LOG.error("external network bridge '%s' does not exist"
% self.conf.external_network_bridge)
return
prev_router_ids = set(self.router_info)
cur_router_ids = set()
target_ex_net_id = self._fetch_external_net_id()
# identify and update new or modified routers
for r in self.qclient.list_routers()['routers']:
if not r['admin_state_up']:
continue
ex_net_id = (r['external_gateway_info'] and
r['external_gateway_info'].get('network_id'))
if not ex_net_id and not self.conf.handle_internal_only_routers:
continue
if ex_net_id and ex_net_id != target_ex_net_id:
continue
# If namespaces are disabled, only process the router associated
# with the configured agent id.
if (self.conf.use_namespaces or
r['id'] == self.conf.router_id):
cur_router_ids.add(r['id'])
else:
continue
if r['id'] not in self.router_info:
self._router_added(r['id'])
ri = self.router_info[r['id']]
self.process_router(ri)
# identify and remove routers that no longer exist
for router_id in prev_router_ids - cur_router_ids:
self._router_removed(router_id)
prev_router_ids = cur_router_ids
def plug(self, network_id, port_id, device_name, mac_address):
"""Plugin the interface."""
if not ip_lib.device_exists(device_name,
self.conf.root_helper,
namespace=network_id):
ip = ip_lib.IPWrapper(self.conf.root_helper)
tap_name = device_name.replace(self.DEV_NAME_PREFIX, 'tap')
root_veth, dhcp_veth = ip.add_veth(tap_name, device_name)
root_veth.link.set_address(mac_address)
namespace = ip.ensure_namespace(network_id)
namespace.add_device_to_namespace(dhcp_veth)
root_veth.link.set_up()
dhcp_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists") % device_name)
def plug(self, network_id, port_id, device_name, mac_address, bridge=None, namespace=None, prefix=None):
"""Plug in the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(device_name, self.conf.root_helper, namespace=namespace):
self._ovs_add_port(bridge, device_name, port_id, mac_address)
ip = ip_lib.IPWrapper(self.conf.root_helper)
device = ip.device(device_name)
device.link.set_address(mac_address)
if self.conf.network_device_mtu:
device.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(device)
device.link.set_up()
def internal_network_added(self, ri, ex_gw_port, network_id, port_id,
internal_cidr, mac_address):
interface_name = self.get_internal_device_name(port_id)
if not ip_lib.device_exists(interface_name,
root_helper=self.conf.root_helper,
namespace=ri.ns_name()):
self.driver.plug(network_id, port_id, interface_name, mac_address,
namespace=ri.ns_name(),
prefix=INTERNAL_DEV_PREFIX)
self.driver.init_l3(interface_name, [internal_cidr],
namespace=ri.ns_name())
ip_address = internal_cidr.split('/')[0]
self._send_gratuitous_arp_packet(ri, interface_name, ip_address)
if ex_gw_port:
ex_gw_ip = ex_gw_port['fixed_ips'][0]['ip_address']
for c, r in self.internal_network_nat_rules(ex_gw_ip,
internal_cidr):
ri.iptables_manager.ipv4['nat'].add_rule(c, r)
ri.iptables_manager.apply()
def plug(self,
network_id,
port_id,
device_name,
mac_address,
bridge=None,
namespace=None,
prefix=None):
"""Plugin the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(
device_name, self.conf.root_helper, namespace=namespace):
ip = ip_lib.IPWrapper(self.conf.root_helper)
tap_name = self._get_tap_name(device_name, prefix)
root_veth, ns_veth = ip.add_veth(tap_name, device_name)
self._ovs_add_port(bridge,
tap_name,
port_id,
mac_address,
internal=False)
ns_veth.link.set_address(mac_address)
if self.conf.network_device_mtu:
ns_veth.link.set_mtu(self.conf.network_device_mtu)
root_veth.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(ns_veth)
root_veth.link.set_up()
ns_veth.link.set_up()
else:
LOG.warn(_("Device %s already exists") % device_name)
def plug(self, network_id, port_id, device_name, mac_address,
bridge=None, namespace=None, prefix=None):
"""Plug in the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
self.check_bridge_exists(bridge)
if not ip_lib.device_exists(device_name,
self.conf.root_helper,
namespace=namespace):
utils.execute(['ovs-vsctl',
'--', '--may-exist', 'add-port', bridge,
device_name,
'--', 'set', 'Interface', device_name,
'type=internal',
'--', 'set', 'Interface', device_name,
'external-ids:iface-id=%s' % port_id,
'--', 'set', 'Interface', device_name,
'external-ids:iface-status=active',
'--', 'set', 'Interface', device_name,
'external-ids:attached-mac=%s' %
mac_address],
self.conf.root_helper)
ip = ip_lib.IPWrapper(self.conf.root_helper)
device = ip.device(device_name)
device.link.set_address(mac_address)
if self.conf.network_device_mtu:
device.link.set_mtu(self.conf.network_device_mtu)
if namespace:
namespace_obj = ip.ensure_namespace(namespace)
namespace_obj.add_device_to_namespace(device)
device.link.set_up()
def setUp(self):
super(TunnelTest, self).setUp()
cfg.CONF.set_override('rpc_backend',
'quantum.openstack.common.rpc.impl_fake')
cfg.CONF.set_override('report_interval', 0, 'AGENT')
self.mox = mox.Mox()
self.addCleanup(self.mox.UnsetStubs)
self.INT_BRIDGE = 'integration_bridge'
self.TUN_BRIDGE = 'tunnel_bridge'
self.MAP_TUN_BRIDGE = 'tunnel_bridge_mapping'
self.NET_MAPPING = {'net1': self.MAP_TUN_BRIDGE}
self.INT_OFPORT = 11111
self.TUN_OFPORT = 22222
self.MAP_TUN_OFPORT = 33333
self.inta = self.mox.CreateMock(ip_lib.IPDevice)
self.intb = self.mox.CreateMock(ip_lib.IPDevice)
self.inta.link = self.mox.CreateMock(ip_lib.IpLinkCommand)
self.intb.link = self.mox.CreateMock(ip_lib.IpLinkCommand)
self.mox.StubOutClassWithMocks(ovs_lib, 'OVSBridge')
self.mock_int_bridge = ovs_lib.OVSBridge(self.INT_BRIDGE, 'sudo')
self.mock_int_bridge.delete_port('patch-tun')
self.mock_int_bridge.remove_all_flows()
self.mock_int_bridge.add_flow(priority=1, actions='normal')
self.mock_map_tun_bridge = ovs_lib.OVSBridge(self.MAP_TUN_BRIDGE,
'sudo')
self.mock_map_tun_bridge.remove_all_flows()
self.mock_map_tun_bridge.add_flow(priority=1, actions='normal')
self.mock_int_bridge.delete_port('int-tunnel_bridge_mapping')
self.mock_map_tun_bridge.delete_port('phy-tunnel_bridge_mapping')
self.mock_int_bridge.add_port(self.inta)
self.mock_map_tun_bridge.add_port(self.intb)
self.inta.link.set_up()
self.intb.link.set_up()
self.mock_int_bridge.add_flow(priority=2, in_port=None, actions='drop')
self.mock_map_tun_bridge.add_flow(priority=2,
in_port=None,
actions='drop')
self.mock_tun_bridge = ovs_lib.OVSBridge(self.TUN_BRIDGE, 'sudo')
self.mock_tun_bridge.reset_bridge()
self.mock_int_bridge.add_patch_port(
'patch-tun', 'patch-int').AndReturn(self.TUN_OFPORT)
self.mock_tun_bridge.add_patch_port(
'patch-int', 'patch-tun').AndReturn(self.INT_OFPORT)
self.mock_tun_bridge.remove_all_flows()
self.mock_tun_bridge.add_flow(priority=1, actions='drop')
self.mox.StubOutWithMock(ip_lib, 'device_exists')
ip_lib.device_exists('tunnel_bridge_mapping', 'sudo').AndReturn(True)
ip_lib.device_exists('int-tunnel_bridge_mapping',
'sudo').AndReturn(True)
self.mox.StubOutWithMock(ip_lib.IpLinkCommand, 'delete')
ip_lib.IPDevice('int-tunnel_bridge_mapping').link.delete()
self.mox.StubOutClassWithMocks(ip_lib, 'IPWrapper')
ip_lib.IPWrapper('sudo').add_veth(
'int-tunnel_bridge_mapping',
'phy-tunnel_bridge_mapping').AndReturn([self.inta, self.intb])
self.mock_int_bridge.get_local_port_mac().AndReturn('000000000001')
def check_bridge_exists(self, bridge):
if not ip_lib.device_exists(bridge):
raise exceptions.BridgeDoesNotExist(bridge=bridge)
def test_device_exists(self):
with mock.patch.object(ip_lib.IPDevice, '_execute') as _execute:
_execute.return_value = LINK_SAMPLE[1]
self.assertTrue(ip_lib.device_exists('eth0'))
_execute.assert_called_once_with('o', 'link', ('show', 'eth0'))
def test_device_does_not_exist(self):
with mock.patch.object(ip_lib.IPDevice, '_execute') as _execute:
_execute.return_value = ''
_execute.side_effect = RuntimeError
self.assertFalse(ip_lib.device_exists('eth0'))