def _handle_new_link(self, of_link):
of_port_src = of_link['src']
src_dpid = DPID(of_port_src['dpid'])
src_port_id = of_port_src['port_no']
src_datapath = RUNTIME.datapaths[src_dpid]
src_port = src_datapath.network_ports[src_port_id]
of_port_dst = of_link['dst']
dst_dpid = DPID(of_port_dst['dpid'])
dst_port_id = of_port_dst['port_no']
dst_datapath = RUNTIME.datapaths[dst_dpid]
dst_port = dst_datapath.network_ports[dst_port_id]
# links are unidirectional
src_port.neighbour = dst_port
def _handle_caps(self, wtp, caps):
"""Handle an incoming CAPS message.
Args:
caps, a CAPS message
Returns:
None
"""
dpid = DPID(caps['dpid'])
if dpid not in RUNTIME.datapaths:
RUNTIME.datapaths[dpid] = Datapath(dpid)
wtp.datapath = RUNTIME.datapaths[dpid]
for block in caps.blocks:
hwaddr = EtherAddress(block[0])
r_block = ResourceBlock(wtp, hwaddr, block[1], block[2])
wtp.supports.add(r_block)
for port in caps.ports:
hwaddr = EtherAddress(port[0])
port_id = int(port[1])
iface = port[2].decode("utf-8").strip('\0')
if port_id not in wtp.datapath.network_ports:
network_port = NetworkPort(dp=wtp.datapath,
port_id=port_id,
hwaddr=hwaddr,
iface=iface)
wtp.datapath.network_ports[port_id] = network_port
# set state to online
wtp.set_online()
# fetch active lvaps
self.send_lvap_status_request()
# fetch active vaps
self.send_vap_status_request()
# fetch active traffic rules
self.send_slice_status_request()
# fetch active tramission policies
self.send_transmission_policy_status_request()
# send vaps
self.update_vaps()
# send slices
self.update_slices()
def post(self, *args):
"""Add a new Endpoint.
Args:
tenant_id: network name of a tenant
endpoint_id: the endpoint id
Request:
version: protocol version (1.0)
endpoint_name: the endpoint name
dpid: the datapath id
ports: a dictionary of VirtualPorts, where each key is a vport_id
port_id: the port number on the datapath id
properties: a dictionary of additional information
dont_learn: list of hardware addresses bounded to this port
Example URLs:
POST /api/v1/tenants/52313ecb-9d00-4b7d-b873-b55d3d9ada26/eps
POST /api/v1/tenants/52313ecb-9d00-4b7d-b873-b55d3d9ada26/
eps/49313ecb-9d00-4a7c-b873-b55d3d9ada34
"""
try:
if len(args) > 2 or len(args) < 1:
raise ValueError("Invalid url")
request = tornado.escape.json_decode(self.request.body)
if "version" not in request:
raise ValueError("missing version element")
if "endpoint_name" not in request:
raise ValueError("missing endpoint_name element")
if "dpid" not in request:
raise ValueError("missing dpid element")
if "ports" not in request:
raise ValueError("missing ports element")
if not isinstance(request["ports"], dict):
raise ValueError("ports is not a dictionary")
for port in request["ports"].values():
if "port_id" not in port:
raise ValueError("missing port_id element")
tenant_id = UUID(args[0])
if tenant_id not in RUNTIME.tenants:
raise KeyError(tenant_id)
tenant = RUNTIME.tenants[tenant_id]
if len(args) == 1:
endpoint_id = uuid4()
else:
endpoint_id = UUID(args[1])
dpid = DPID(request["dpid"])
datapath = RUNTIME.datapaths[dpid]
tenant.add_endpoint(endpoint_id=endpoint_id,
endpoint_name=request["endpoint_name"],
datapath=datapath,
ports=request["ports"])
url = "/api/v1/tenants/%s/eps/%s" % (tenant_id, endpoint_id)
self.set_header("Location", url)
except ValueError as ex:
self.send_error(400, message=ex)
except RuntimeError as ex:
self.send_error(400, message=ex)
except KeyError as ex:
self.send_error(404, message=ex)
self.set_status(201, None)
def _handle_lvnf_status_response(self, response):
"""Handle an incoming LVNF_STATUS_RESPONSE message.
Args:
status_lvnf, a LVNF_STATUS_RESPONSE message
Returns:
None
"""
# update dpid
dpid = DPID(response['dpid'])
if dpid not in RUNTIME.datapaths:
RUNTIME.datapaths[dpid] = Datapath(dpid)
self.cpp.datapath = RUNTIME.datapaths[dpid]
# update network ports
for port in response['ports'].values():
if port['ovs_port_id'] not in self.cpp.datapath.network_ports:
network_port = NetworkPort(dp=self.cpp.datapath,
port_id=port['ovs_port_id'],
hwaddr=EtherAddress(port['hwaddr']),
iface=port['iface'])
self.cpp.datapath.network_ports[port['ovs_port_id']] = \
network_port
# update lvnf
tenant_id = uuid.UUID(response['tenant_id'])
lvnf_id = uuid.UUID(response['lvnf_id'])
if tenant_id not in RUNTIME.tenants:
LOG.warning("Tenant %s not found, ignoring LVNF %s", tenant_id,
lvnf_id)
return
tenant = RUNTIME.tenants[tenant_id]
# Add lvnf to tenant if not present
if lvnf_id not in tenant.lvnfs:
LOG.warning("LVNF %s not found, adding.", lvnf_id)
img_dict = response['image']
image = Image(nb_ports=img_dict['nb_ports'],
vnf=img_dict['vnf'],
state_handlers=img_dict['state_handlers'],
handlers=img_dict['handlers'])
tenant.lvnfs[lvnf_id] = LVNF(lvnf_id, tenant, image,
PROCESS_RUNNING)
tenant.lvnfs[lvnf_id]._cpp = self.cpp
tenant.lvnfs[lvnf_id].datapath = self.cpp.datapath
lvnf = tenant.lvnfs[lvnf_id]
# update virtual ports
for port in response['ports'].values():
network_port = self.cpp.datapath.network_ports[port['ovs_port_id']]
virtual_port_id = port['virtual_port_id']
virtual_port = VirtualPort(endpoint=lvnf,
network_port=network_port,
virtual_port_id=virtual_port_id)
lvnf.ports[virtual_port.virtual_port_id] = virtual_port
LOG.info("LVNF Status: %s", lvnf)
def _handle_add_lvnf_response(self, response):
"""Handle an incoming ADD_LVNF_RESPONSE message.
Args:
response, a ADD_LVNF_RESPONSE message
Returns:
None
"""
if response['returncode'] is not None:
LOG.error("Unable to start LVNF %s, returncode %u",
response['lvnf_id'], response['returncode'])
tenant_id = uuid.UUID(response['tenant_id'])
lvnf_id = uuid.UUID(response['lvnf_id'])
if tenant_id not in RUNTIME.tenants:
LOG.warning("Tenant %s not found, ignoring LVNF %s", tenant_id,
lvnf_id)
return
tenant = RUNTIME.tenants[tenant_id]
if lvnf_id not in tenant.lvnfs:
LOG.warning("LVNF %s not found, ignoring", lvnf_id)
return
del tenant.lvnfs[lvnf_id]
return
# update dpid
dpid = DPID(response['dpid'])
if dpid not in RUNTIME.datapaths:
RUNTIME.datapaths[dpid] = Datapath(dpid)
self.cpp.datapath = RUNTIME.datapaths[dpid]
# update network ports
for port in response['ports'].values():
if port['ovs_port_id'] not in self.cpp.datapath.network_ports:
network_port = NetworkPort(dp=self.cpp.datapath,
port_id=port['ovs_port_id'],
hwaddr=EtherAddress(port['hwaddr']),
iface=port['iface'])
self.cpp.datapath.network_ports[port['ovs_port_id']] = \
network_port
# update lvnf
tenant_id = uuid.UUID(response['tenant_id'])
lvnf_id = uuid.UUID(response['lvnf_id'])
if tenant_id not in RUNTIME.tenants:
LOG.warning("Tenant %s not found, ignoring LVNF %s", tenant_id,
lvnf_id)
return
tenant = RUNTIME.tenants[tenant_id]
if lvnf_id not in tenant.lvnfs:
LOG.warning("LVNF %s not found, ignoring", lvnf_id)
return
lvnf = tenant.lvnfs[lvnf_id]
lvnf.handle_add_lvnf_response(response['xid'])
# update virtual ports
for port in response['ports'].values():
network_port = self.cpp.datapath.network_ports[port['ovs_port_id']]
virtual_port_id = port['virtual_port_id']
virtual_port = VirtualPort(endpoint=lvnf,
network_port=network_port,
virtual_port_id=virtual_port_id)
lvnf.ports[virtual_port.virtual_port_id] = virtual_port
