def del_traffic_rule(self, match):
"""Delete a traffic rule from this tenant.
Args:
match, a Match object
Returns:
None
Raises:
None
"""
rule = Session().query(TblTrafficRule) \
.filter(TblTrafficRule.tenant_id == self.tenant_id,
TblTrafficRule.match == match) \
.first()
if not rule:
raise KeyError(rule)
# Send command to IBN
from empower.ibnp.ibnpserver import IBNPServer
ibnp_server = get_module(IBNPServer.__module__)
if ibnp_server:
ibnp_server.del_traffic_rule(self.tenant_id, match)
session = Session()
session.delete(rule)
session.commit()
def _remove_intent(cls, uuid):
"""Remove intent."""
from empower.ibnp.ibnpserver import IBNPServer
ibnp_server = get_module(IBNPServer.__module__)
if ibnp_server and ibnp_server.connection:
ibnp_server.connection.send_remove_endpoint(uuid)
def update_db(self, samples):
"""Update InfluxDB with the latest measurements"""
from empower.statssender.statssender import StatsSender
stats_sender = get_module(StatsSender.__module__)
if stats_sender:
stats_sender.send_stat(points=samples,
database=self.MODULE_NAME,
time_precision='u')
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 _update_intent(self):
"""Set/update intent."""
endpoint_ports = {}
for vport_id, vport in self.items():
props = {'dont_learn': vport.dont_learn}
endpoint_ports[vport_id] = {'port_no': vport.network_port.port_id,
'properties': props}
intent = {'version': '1.0',
'uuid': self.endpoint.uuid,
'dpid': self.endpoint.datapath.dpid,
'ports': endpoint_ports}
from empower.ibnp.ibnpserver import IBNPServer
ibnp_server = get_module(IBNPServer.__module__)
if ibnp_server and ibnp_server.connection:
ibnp_server.connection.send_update_endpoint(intent)
def __delitem__(self, key):
"""Clear virtual port configuration."""
from empower.ibnp.ibnpserver import IBNPServer
ibnp_server = get_module(IBNPServer.__module__)
# remove virtual links
if key in self.__uuids__:
if ibnp_server.connection:
ibnp_server.connection.send_remove_rule(self.__uuids__[key])
else:
LOG.warning('IBN not available')
self.my_virtual_port.network_port.remove_match(self.__uuids__[key])
del self.__uuids__[key]
# remove old entry
dict.__delitem__(self, key)
def initialize(self, server):
self.server = server
self.of_dpid = []
self.dpid2ep = {}
self.of_rules = {}
# map from dscp values to tos
self.dscp2tos = {
'0x00': '0x00',
'0x01': '0x04',
'0x02': '0x08',
'0x03': '0x0C',
'0x04': '0x10',
'0x08': '0x20',
'0x0A': '0x28',
'0x0C': '0x30',
'0x0E': '0x38',
'0x10': '0x40',
'0x12': '0x48',
'0x14': '0x50',
'0x16': '0x58',
'0x18': '0x60',
'0x1A': '0x68',
'0x1C': '0x70',
'0x1E': '0x78',
'0x20': '0x80',
'0x22': '0x88',
'0x24': '0x90',
'0x26': '0x98',
'0x28': '0xA0',
'0x2C': '0xB0',
'0x2E': '0xB8',
'0x30': '0xC0',
'0x38': '0xE0'
}
lvapp_server = get_module(LVAPPServer.__module__)
lvapp_server.register_message(PT_LVAP_JOIN, None, self._lvap_join)
lvapp_server.register_message(PT_LVAP_LEAVE, None, self._lvap_leave)
lvapp_server.register_message(PT_LVAP_HANDOVER, None,
self._lvap_handover)
def add_traffic_rule(self, match, dscp, label, priority=0):
"""Add a new traffic rule to the Tenant.
Args:
match, a Match object
dscp, a slice DSCP code
label, a humand readable description of the rule
Returns:
None
Raises:
Nones
"""
trule = TrafficRule(tenant=self,
match=match,
dscp=dscp,
priority=priority,
label=label)
# Send command to IBN
from empower.ibnp.ibnpserver import IBNPServer
ibnp_server = get_module(IBNPServer.__module__)
if ibnp_server:
ibnp_server.add_traffic_rule(trule)
rule = TblTrafficRule(tenant_id=self.tenant_id,
match=match,
dscp=dscp,
priority=priority,
label=label)
try:
session = Session()
session.add(rule)
session.commit()
except IntegrityError:
session.rollback()
raise ValueError("Duplicate (%s, %s)" % (self.tenant_id, match))