def delete(self, *args, **kwargs):
"""Delete traffic rule queues.
Args:
tenant_id: network name of a tenant
Example URLs:
DELETE /api/v1/tenants/52313ecb-9d00-4b7d-b873-b55d3d9ada26/trs/ \
dl_vlan=100,tp_dst=80
"""
try:
if len(args) != 2:
raise ValueError("Invalid url")
tenant_id = UUID(args[0])
tenant = RUNTIME.tenants[tenant_id]
match = Match(args[1])
tenant.del_traffic_rule(match)
except ValueError as ex:
self.send_error(400, message=ex)
except KeyError as ex:
self.send_error(404, message=ex)
self.set_status(204, None)
def post(self, *args, **kwargs):
"""Add traffic rule.
Args:
tenant_id: network name of a tenant
Example URLs:
POST /api/v1/tenants/52313ecb-9d00-4b7d-b873-b55d3d9ada26/slices
{
"version" : 1.0,
"dscp" : 0x40,
"label" : "video traffic (high priority)",
"match" : "dl_vlan=100,tp_dst=80",
}
"""
try:
if 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 "dscp" not in request:
raise ValueError("missing dscp element")
if "label" not in request:
raise ValueError("missing label element")
if "match" not in request:
raise ValueError("missing match element")
tenant_id = UUID(args[0])
tenant = RUNTIME.tenants[tenant_id]
dscp = DSCP(request["dscp"])
match = Match(request["match"])
if "priority" in request:
tenant.add_traffic_rule(match, dscp, request["label"],
request["priority"])
else:
tenant.add_traffic_rule(match, dscp, request["label"])
url = "/api/v1/tenants/%s/trs/%s" % (tenant_id, match)
self.set_header("Location", url)
except TypeError as ex:
self.send_error(400, message=ex)
except ValueError as ex:
self.send_error(400, message=ex)
except KeyError as ex:
self.send_error(404, message=ex)
self.set_status(201, None)
def get(self, *args, **kwargs):
"""List traffic rules .
Args:
tenant_id: network name of a tenant
match: the openflow match rule (e.g. dl_vlan=100,tp_dst=80)
Example URLs:
GET /api/v1/tenants/52313ecb-9d00-4b7d-b873-b55d3d9ada26/trs
GET /api/v1/tenants/52313ecb-9d00-4b7d-b873-b55d3d9ada26/trs/ \
dl_vlan=100,tp_dst=80
"""
try:
if len(args) not in [1, 2]:
raise ValueError("Invalid url")
tenant_id = UUID(args[0])
tenant = RUNTIME.tenants[tenant_id]
if len(args) == 1:
self.write_as_json(tenant.traffic_rules.values())
else:
match = Match(args[1])
self.write_as_json(tenant.traffic_rules[match])
except ValueError as ex:
self.send_error(400, message=ex)
except KeyError as ex:
self.send_error(404, message=ex)
def __setitem__(self, key, value):
"""Set virtual port configuration."""
if value and not isinstance(value, VirtualPort):
raise KeyError("Expected VirtualPort, got %s" % type(key))
# remove virtual link
if self.__contains__(key):
self.__delitem__(key)
self.__uuids__[key] = None
from empower.ibnp.ibnpserver import IBNPServer
ibnp_server = get_module(IBNPServer.__module__)
rule_uuid = uuid4()
match = Match(key)
self.my_virtual_port.network_port.add_match(match, rule_uuid)
priority = None
if 'priority' in match.match:
priority = int(match.match['priority'])
del match.match['priority']
# set/update intent
intent = {
'version': '1.0',
'uuid': rule_uuid,
'ttp_uuid': value.endpoint.uuid,
'ttp_vport': value.virtual_port_id,
'stp_uuid': self.my_virtual_port.endpoint.uuid,
'stp_vport': self.my_virtual_port.virtual_port_id,
'match': match.match
}
# custom priorities start at 250 in Ryu, the priority value is summed
if priority is not None:
intent['priority'] = priority
# add new virtual link
if key in self.__uuids__:
if ibnp_server.connection:
ibnp_server.connection.send_add_rule(intent)
else:
LOG.warning('IBN not available')
self.__uuids__[key] = rule_uuid
# add entry
dict.__setitem__(self, key, value)
def _send_add_tr(self, tenant, lvap, match, dscp, priority):
dp = lvap.wtp.datapath
if dp.dpid not in self.of_dpid:
return None
if dp.dpid not in self.dpid2ep:
tr_ep = Endpoint(uuid4(), '', dp)
if dp.network_ports.keys() != {1, 2}:
raise ValueError('Network port numbers mismatch, '
'please restart the WTP')
src_vport = VirtualPort(tr_ep, dp.network_ports[1], 0)
dst_vport = VirtualPort(tr_ep, dp.network_ports[2], 1)
tr_ep.ports[src_vport.virtual_port_id] = src_vport
tr_ep.ports[dst_vport.virtual_port_id] = dst_vport
self.dpid2ep[dp.dpid] = tr_ep
tr_ep = self.dpid2ep[dp.dpid]
of_rule_id = uuid4()
sta_match = Match('%s,dl_dst=%s' % (str(match), lvap.addr))
rule = {'version': '1.0',
'uuid': of_rule_id,
'ttp_uuid': tr_ep.uuid,
'ttp_vport': tr_ep.ports[1].virtual_port_id,
'stp_uuid': tr_ep.uuid,
'stp_vport': tr_ep.ports[0].virtual_port_id,
'match': sta_match.match,
'actions': [{'type': 'SET_NW_TOS',
'nw_tos': self.dscp2tos[str(dscp)]}],
'priority': priority}
self.send_add_rule(rule)
tr_id = (match, lvap.addr)
if tenant.tenant_id not in self.of_rules:
self.of_rules[tenant.tenant_id] = {}
self.of_rules[tenant.tenant_id][tr_id] = of_rule_id
def _send_add_tr(self, tenant, lvap, match, dscp, priority):
dp = lvap.wtp.datapath
if dp.dpid not in self.of_dpid:
return None
if dp.dpid not in self.dpid2ep:
tr_ep = Endpoint(uuid4(), '', dp)
src_port = None
dst_port = None
for port in dp.network_ports.values():
if port.iface == 'eth0' or port.iface == 'eth1':
src_port = port
if port.iface == 'empower0':
dst_port = port
if not src_port:
raise KeyError('Cannot find the src network port:', port.iface)
if not dst_port:
raise KeyError('Cannot find the dst network port \"empower0\"')
src_vport = VirtualPort(tr_ep, src_port, 0)
dst_vport = VirtualPort(tr_ep, dst_port, 1)
tr_ep.ports[src_vport.virtual_port_id] = src_vport
tr_ep.ports[dst_vport.virtual_port_id] = dst_vport
self.dpid2ep[dp.dpid] = tr_ep
tr_ep = self.dpid2ep[dp.dpid]
of_rule_id = uuid4()
sta_match = Match('%s,dl_dst=%s' % (str(match), lvap.addr))
rule = {'version': '1.0',
'uuid': of_rule_id,
'ttp_uuid': tr_ep.uuid,
'ttp_vport': tr_ep.ports[1].virtual_port_id,
'stp_uuid': tr_ep.uuid,
'stp_vport': tr_ep.ports[0].virtual_port_id,
'match': sta_match.match,
'actions': [{'type': 'SET_NW_TOS',
'nw_tos': self.dscp2tos[str(dscp)]}],
'priority': priority}
self.send_add_rule(rule)
of_rule_type = 'downlink'
tr_id = (match, lvap.addr, of_rule_type)
if tenant.tenant_id not in self.of_rules:
self.of_rules[tenant.tenant_id] = {}
self.of_rules[tenant.tenant_id][tr_id] = of_rule_id
# Creating another OF rule from input port (empower0) to output port (empower0)
of_rule_id = uuid4()
rule = {'version': '1.0',
'uuid': of_rule_id,
'ttp_uuid': tr_ep.uuid,
'ttp_vport': tr_ep.ports[1].virtual_port_id,
'stp_uuid': tr_ep.uuid,
'stp_vport': tr_ep.ports[1].virtual_port_id,
'match': sta_match.match,
'actions': [{'type': 'SET_NW_TOS',
'nw_tos': self.dscp2tos[str(dscp)]}],
'priority': priority}
self.send_add_rule(rule)
of_rule_type = 'client_to_client'
tr_id = (match, lvap.addr, of_rule_type)
if tenant.tenant_id not in self.of_rules:
self.of_rules[tenant.tenant_id] = {}
self.of_rules[tenant.tenant_id][tr_id] = of_rule_id
