def make_net_model(net_spec):
try:
net_model = dhcp.NetModel(False, net_spec)
except TypeError:
# use_namespace option was removed during Mitaka cycle.
net_model = dhcp.NetModel(net_spec)
net_model._ns_name = None
return net_model
def get_network_info(self, network_id):
"""Make a remote process call to retrieve network info."""
cctxt = self.client.prepare()
network = cctxt.call(self.context, 'get_network_info',
network_id=network_id, host=self.host)
if network:
return dhcp.NetModel(self.use_namespaces, network)
def get_active_networks_info(self):
"""Make a remote process call to retrieve all network info."""
networks = self.call(self.context,
self.make_msg('get_active_networks_info',
host=self.host),
topic=self.topic)
return [dhcp.NetModel(self.use_namespaces, n) for n in networks]
def get_active_networks_info(self):
"""Make a remote process call to retrieve all network info."""
cctxt = self.client.prepare(version='1.1')
networks = cctxt.call(self.context,
'get_active_networks_info',
host=self.host)
return [dhcp.NetModel(self.use_namespaces, n) for n in networks]
def on_ports_changed(self):
# Check whether we should really do the following processing.
if self.suppress_on_ports_changed:
LOG.debug("Don't recalculate subnets yet;"
" must be processing a snapshot")
return
# Get current NetModel description of the Calico network.
net = self.agent.cache.get_network_by_id(NETWORK_ID)
LOG.debug("net: %s %s %s", net.id, net.subnets, net.ports)
# See if we need to update the subnets in the NetModel.
new_subnets = self.calculate_new_subnets(net.ports, net.subnets)
if new_subnets is None:
# No change to subnets, so just need 'reload_allocations' to tell
# Dnsmasq about the new port.
self.agent.call_driver('reload_allocations', net)
else:
# Subnets changed, so need to 'restart' the DHCP driver.
net = dhcp.NetModel(
False, {
"id": net.id,
"subnets": new_subnets,
"ports": net.ports,
"tenant_id": "calico",
"mtu": constants.DEFAULT_NETWORK_MTU
})
LOG.debug("new net: %s %s %s", net.id, net.subnets, net.ports)
# Next line - i.e. just discarding the existing cache - is to work
# around Neutron bug that the DHCP port is not entered into the
# cache's port_lookup dict.
self.agent.cache = NetworkCache()
self.agent.cache.put(net)
self.agent.call_driver('restart', net)
def get_network_info(self, network_id):
"""Make a remote process call to retrieve network info."""
network = self.call(self.context,
self.make_msg('get_network_info',
network_id=network_id,
host=self.host))
if network:
return dhcp.NetModel(self.use_namespaces, network)
def _empty_network(self):
"""Construct and return an empty network model."""
return dhcp.NetModel(
False, {
"id": NETWORK_ID,
"subnets": [],
"ports": [],
"mtu": constants.DEFAULT_NETWORK_MTU
})
def create_network_dict(self, net_id, subnets=None, ports=None):
subnets = [] if not subnets else subnets
ports = [] if not ports else ports
net_dict = dhcp.NetModel(use_namespaces=True, d={
"id": net_id,
"subnets": subnets,
"ports": ports,
"admin_state_up": True,
"tenant_id": uuidutils.generate_uuid(), })
return net_dict
def create_network_dict(self, net_id, subnets=None, ports=None,
non_local_subnets=None):
subnets = [] if not subnets else subnets
ports = [] if not ports else ports
non_local_subnets = [] if not non_local_subnets else non_local_subnets
net_dict = dhcp.NetModel(id=net_id,
subnets=subnets,
non_local_subnets=non_local_subnets,
ports=ports,
admin_state_up=True,
project_id=uuidutils.generate_uuid())
return net_dict
def kill_dhcp(conf, namespace):
"""Disable DHCP for a network if DHCP is still active."""
network_id = namespace.replace(dhcp.NS_PREFIX, '')
dhcp_driver = importutils.import_object(
conf.dhcp_driver,
conf=conf,
network=dhcp.NetModel(conf.use_namespaces, {'id': network_id}),
plugin=FakeDhcpPlugin())
if dhcp_driver.active:
dhcp_driver.disable()
def _populate_networks_cache(self):
"""Populate the networks cache when the DHCP-agent starts."""
try:
existing_networks = self.dhcp_driver_cls.existing_dhcp_networks(
self.conf)
for net_id in existing_networks:
net = dhcp.NetModel({"id": net_id, "subnets": [], "ports": []})
self.cache.put(net)
except NotImplementedError:
# just go ahead with an empty networks cache
LOG.debug(
"The '%s' DHCP-driver does not support retrieving of a "
"list of existing networks", self.conf.dhcp_driver)
def get_networks(self, filters=None, fields=None):
"""Get networks.
:param filters: The filters to apply.
E.g {"id" : ["<uuid of a network>", ...]}
:param fields: A list of fields to collect, e.g ["id", "subnets"].
:return: A list of NetModel where each object represent a network.
"""
cctxt = self.client.prepare(version='1.7')
nets = cctxt.call(self.context, 'get_networks', filters=filters,
fields=fields)
return [dhcp.NetModel(net) for net in nets]
def kill_dhcp(conf, namespace):
"""Disable DHCP for a network if DHCP is still active."""
root_helper = agent_config.get_root_helper(conf)
network_id = namespace.replace(dhcp.NS_PREFIX, '')
dhcp_driver = importutils.import_object(
conf.dhcp_driver,
conf=conf,
process_monitor=_get_dhcp_process_monitor(conf, root_helper),
network=dhcp.NetModel(conf.use_namespaces, {'id': network_id}),
root_helper=root_helper,
plugin=FakeDhcpPlugin())
if dhcp_driver.active:
dhcp_driver.disable()
def get_active_networks_info(self):
"""Make a remote process call to retrieve all network info."""
ret = self.call(
self.context,
self.make_msg('get_active_networks_info', host=self.host))
networks = ret['networks']
subnets = ret['subnets']
ports = ret['ports']
for network in networks:
network['subnets'] = [
subnet for subnet in subnets
if subnet['network_id'] == network['id']
]
network['ports'] = [
port for port in ports if port['network_id'] == network['id']
]
return [dhcp.NetModel(self.use_namespaces, n) for n in networks]
def get_distributed_active_networks_info(self):
ret = self.call(
self.context,
self.make_msg('get_distributed_active_networks_info',
host=self.host))
networks = ret['networks']
subnets = ret['subnets']
ports = ret['ports']
for network in networks:
network['subnets'] = [
subnet for subnet in subnets
if subnet['network_id'] == network['id']
]
network['ports'] = [
port for port in ports if port['network_id'] == network['id']
]
return [dhcp.NetModel(self.use_namespaces, n) for n in networks]
fixed_ips=[fake_fixed_ipv6]))
fake_meta_port = dhcp.DictModel(
dict(id='12345678-1234-aaaa-1234567890ab',
mac_address='aa:bb:cc:dd:ee:ff',
network_id='12345678-1234-5678-1234567890ab',
device_owner=const.DEVICE_OWNER_ROUTER_INTF,
device_id='forzanapoli',
fixed_ips=[fake_meta_fixed_ip]))
FAKE_NETWORK_UUID = '12345678-1234-5678-1234567890ab'
FAKE_NETWORK_DHCP_NS = "qdhcp-%s" % FAKE_NETWORK_UUID
fake_network = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[fake_subnet1, fake_subnet2],
ports=[fake_port1]))
fake_network_ipv6 = dhcp.NetModel(
dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[fake_ipv6_subnet],
ports=[fake_ipv6_port]))
fake_network_ipv6_ipv4 = dhcp.NetModel(
dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[fake_ipv6_subnet, fake_subnet1],