def LastSwitch():
switchRead = {}
for dpid in switches:
switchRead[dpid] = False
for p in monitored_paths: #Walk through all distinct paths and select both last and first switch to calculate throughput and packet loss.
if switchRead[p.dst] == False:
switchRead[p.dst] = True
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
switches[p.dst].connection.send(msg)
if switchRead[p.src] == False:
switchRead[p.src] = True
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
switches[p.src].connection.send(msg)
def LastSwitch():
switchRead = {}
for dpid in switches:
switchRead[dpid] = False
for p in monitored_paths: #Walk through all distinct paths and select both last and first switch to calculate throughput and packet loss.
if switchRead[p[-1]] == False:
switchRead[p[-1]] = True
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
switches[p[-1]].connection.send(msg)
if switchRead[p[0]] == False:
switchRead[p[0]] = True
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
switches[p[0]].connection.send(msg)
def servidorSocketSobrecarga():
global listaIDS
global listaIDSold
global ipBro
global mensagem
global pronto
CAPACIDADE = 50
listaIDS=[]
inserirMaquina(listaIDS, 'sdn_firewall_dpi_bro', 6)
porta = 3000
socketControlador = socket(AF_INET,SOCK_STREAM)
socketControlador.bind(('',porta))
socketControlador.listen(1)
#print 'O servidor esta funcionando'
while 1:
conexao, endereco = socketControlador.accept()
ipBro = None
listaIDSold = listaIDS[:]
mensagem = conexao.recv(1024)
#print 'Alarme recebido\n'
if mensagem == "sobrecarga":
inserirMaquina(listaIDS, 'sdn_firewall_dpi2', 4)
pronto=False
while True:
#print 'peeeera'
if pronto == True:
break
elif mensagem == "descarga":
removerMaquina(listaIDS, 4)
conexao.close()
for switchControlado in core.openflow.connections:
switchControlado.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
thread.exit()
def _timer_func ():
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
# We could even request port stats!
#connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
print "Sent " + str(len(core.openflow._connections))+ " flowstats request(s)"
log.info("Sent %i flow/port stats request(s)", )
def _timer_func():
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
# JRF: Not requesting port stats now
# connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)",
len(core.openflow._connections))
def _exec_cmd_get_flow_stats (self, event):
try:
msg = event.msg
dpid = strToDPID(msg['dpid'])
con = core.openflow.getConnection(dpid)
if con is None:
raise RuntimeError("No such switch")
match = event.msg.get('match')
table_id = event.msg.get('table_id', 0xff)
out_port = event.msg.get('out_port', of.OFPP_NONE)
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
if match is None:
match = of.ofp_match()
else:
match = dict_to_match(match)
sr.body.match = match
sr.body.table_id = table_id
sr.body.out_port = out_port
con.send(sr)
self.reply(event,**{'type':'set_table','xid':sr.xid})
except:
#log.exception("Exception in get_flow_stats")
log.debug("Exception in get_flow_stats - %s:%s",
sys.exc_info()[0].__name__,
sys.exc_info()[1])
self.reply(event,
exception="%s: %s" % (sys.exc_info()[0],sys.exc_info()[1]),
traceback=traceback.format_exc())
def requestStats(self):
#Requests udp statistics from the switch that is connected to clients
self.unblockTried = set()
for connection in core.openflow.connections:
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def _request_stats(self):
"""
Send OFPT_STATS_REQUEST messages to every known switch.
"""
for connection in core.openflow._connections.values():
connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def SendFlowStatsReq(self):
# Send flow stat requests to every switch that has active flows.
del self.PolSwitches[:] # empty the plist of switches to be polled in order to calculate it again.
# I must remove old link current values so that calculations are executed correctly when i get responses
core.current_topology.resetLinkCounters()
if core.forwarding.ActFlows:
log.debug("Sending Flow Stat Requests to all switches that have active flows")
# Here is where i should remove non-active flows
core.forwarding.removeInactiveFlows()
# log.debug("Before Sending Flow Stats messages the ActFlow list is:")
for fl in core.forwarding.ActFlows:
# print fl.flow_match.s_ip, fl.flow_match.d_ip, fl.used_path, fl.active
for r in fl.used_path:
if (fl.used_path[fl.used_path.index(r)][0]) not in self.PolSwitches:
self.PolSwitches.append(fl.used_path[fl.used_path.index(r)][0])
else:
log.debug("No active flows at the moment, so not sending any flow stat requests")
self.pol_counter+=1# increment polling session number
if self.PolSwitches:
for con in core.openflow.connections:
if dpid_to_str(con.dpid) in self.PolSwitches:
log.debug("SendingFlowStatsRequest to %s: ", dpid_to_str(con.dpid))
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
con.send(msg)
def _beginDemandEstimation(self):
if self.all_switches_up:
self.demandEstimationLock.acquire()
# Clear all
self.flows = []
self.flowQueryMsg = {} #set() # Store response to be received
# Ask for outgoing flow from edge switches to hosts
for sw_name in self.t.layer_nodes(self.t.LAYER_EDGE):
connected_hosts = self.t.down_nodes(sw_name)
sw_dpid = self.t.id_gen(name=sw_name).dpid
self.flowQueryMsg[sw_dpid] = 0
for host_name in connected_hosts:
sw_port, host_port = self.t.port(sw_name, host_name)
msg = of.ofp_stats_request()
msg.type = of.OFPST_FLOW
msg.body = of.ofp_flow_stats_request()
msg.body.out_port = sw_port
msg.body.match.nw_proto = ipv4.TCP_PROTOCOL
self.switches[sw_dpid].connection.send(msg)
# print "request (sw, src_port) = (" + str(sw_dpid) + ", " + str(sw_port) + ")"
#self.flowQueryMsg.add((sw_dpid, sw_port))
# NOTE: sw_port doesn't match what we get back from openflow.
# So, the best we can do is to count it...
self.flowQueryMsg[sw_dpid] += 1
self.demandEstimationLock.release()
timer = Timer(2.0, self._beginDemandEstimation)
timer.start()
def decider(bool_val, packet):
global layer1_correct
global last_packet
if bool_val:
last_packet = packet
print "### Stage 2: Started ###"
print "Question A: No, Policy does not match actual behaviour"
print "Searching Question B: 'Does policy match device state?'"
layer1_correct = False
# Seatch deeper on device state (Layer 2)
#start_spanning_tree()
con_check = check_switch_connectivity()
# Request flow stats (Layer 3 Question D)
if con_check: # if Yes on question B
print "### Stage 3: Started ###"
print "Question B: Yes, Device state matches Policy."
print "Searching Question D: 'Does device state match hardware?'"
for con in core.openflow._connections.values():
print "Requesting flow table entries from device", con
con.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
else:
print "### Stage 3: Started"
print "Question B: No, Device state doesn't match Policy."
print "Searching Question C: 'Does physical view match Device State?'"
def SendFlowStatsReq(self):
# Send flow stat requests to the first switch in the path of every active flow.
del self.PolSwitches[:] # empty the plist of switches to be polled in order to calculate it again.
if core.forwarding.ActFlows:
log.debug("Sending Flow Stat Request to the first switch in the path of every active flow.")
# Here is where i should remove non-active flows
core.forwarding.removeInactiveFlows()
# log.debug("Before Sending Flow Stats messages the ActFlow list is:")
for fl in core.forwarding.ActFlows:
# print fl.flow_match.s_ip, fl.flow_match.d_ip, fl.used_path, fl.active
if (fl.used_path[0][0]) not in self.PolSwitches:
self.PolSwitches.append(fl.used_path[0][0])
else:
log.debug("No active flows at the moment, so not sending any flow stat requests")
self.pol_counter+=1# increment polling session number
if self.PolSwitches:
for con in core.openflow.connections:
if dpid_to_str(con.dpid) in self.PolSwitches:
log.debug("SendingFlowStatsRequest to %s: ", dpid_to_str(con.dpid))
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
con.send(msg)
def _handle_ConnectionUp(event):
if (dpidToStr(event.dpid) == '00-e0-4c-2a-33-4f'):
nomeswitch = 'Switch UL'
elif (dpidToStr(event.dpid) == '00-08-54-aa-cb-bc'):
nomeswitch = 'Switch DL'
elif (dpidToStr(event.dpid) == '00-06-4f-86-af-ff'):
nomeswitch = 'Switch HW'
elif (dpidToStr(event.dpid) == '00-40-a7-0c-01-75'):
nomeswitch = 'Switch SW'
else:
nomeswitch = 'Switch desconhecido'
log.info("%s conectado.", nomeswitch)
msg1 = of.ofp_flow_mod()
msg1.match.in_port = 2
msg1.priority = 2
msg1.actions.append(of.ofp_action_output(port=1))
msg1.hard_timeout = 10
#msg1.flags |= of.OFPFF_SEND_FLOW_REM
#event.connection.send(msg1)
addRegra(event, msg1)
#msg2 = of.ofp_flow_mod()
#msg2.match.in_port = 3
#msg2.priority = 2
#msg2.actions.append(of.ofp_action_output(port = 2))
#event.connection.send(msg2)
event.connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
log.info("Regras adicionadas.")
def _timer_func():
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(\
body = of.ofp_flow_stats_request()))
log.info("Sent %i flow stats requests",
len(core.openflow._connections))
def _timer_func():
""" handler for timer function that sends the requests to all the
switches connected to the controller.
"""
log.debug("start check stat")
for connection in core.openflow._connections.values():
# FlowStatsReceived
connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request(), type=of.ofp_stats_types_rev_map.get("OFPST_FLOW"))
)
# AggregateFlowStatsReceived
connection.send(
of.ofp_stats_request(
body=of.ofp_aggregate_stats_request(), type=of.ofp_stats_types_rev_map.get("OFPST_AGGREGATE")
)
)
# TableStatsReceived
# I don't know which methode to call (it's not of.ofp_flow_stats())
# connection.send(of.ofp_stats_request(body=of.ofp_table_stats()))
# PortStatsReceived
connection.send(
of.ofp_stats_request(
body=of.ofp_port_stats_request(port_no=of.OFPP_NONE), type=of.ofp_stats_types_rev_map.get("OFPST_PORT")
)
)
# QueueStatsReceived
body = of.ofp_queue_stats_request(port_no=of.OFPP_NONE, queue_id=of.OFPQ_ALL)
connection.send(of.ofp_stats_request(body=body, type=of.ofp_stats_types_rev_map.get("OFPST_QUEUE")))
def RoundRobin():
pathRead = {}
for p in monitored_paths:
pathRead[p] = False
for p in monitored_paths: #Walk through all distinct paths, not even flows
if pathRead[p] != True:
if p not in pathIterator or pathIterator[
p] == p.src: # Round Robin switch selection
pathIterator[p] = p.dst
else:
pathIterator[p] = p.prev[pathIterator[p]]
curSwitch = pathIterator[p]
#log.debug("Sending message to switch %s", util.dpid_to_str(curSwitch))
msg = of.ofp_stats_request(
body=of.ofp_flow_stats_request())
switches[curSwitch].connection.send(msg)
msg2 = of.ofp_stats_request(
body=of.ofp_port_stats_request())
switches[curSwitch].connection.send(msg2)
for pPrime in monitored_pathsBySwitch[
curSwitch]: #Circumvent polling multiple switches for paths from whom the stats have already been requested
pathRead[pPrime] = True
def handle_congestion_notification(self, dpid):
""" Upon reception of a congestion notification, requests for flow stats in the congestioned switch """
dpid = dpid[:len(dpid)-1]
dpid = dpid[len(dpid)-12:]
#print 'Received dpid: ' + str(dpid)
# We leave the 10% to handle new flows, during congestion.
# Request flow stats from switch
#print "dpid parameter: " + str(dpid)
switch=dict.fromkeys(['dpid', 'flow_stats', 'wait_flag', 'drop_policy', 'bw_policy'])
switch['drop_policy'] = 'Random'
switch['bw_policy'] = 'Penalty'
switch['dpid'] = dpid
switch['wait_flag'] = 0
switch['flow_stats'] = []
switch_states.append(switch)
for connection in self.myconnections:
connection_dpid = connection.dpid
#print "Connection dpid: " + str(connection_dpid)
dpid_str = dpidToStr(connection_dpid)
dpid_str = dpid_str.replace("-", "")
#print 'Real dpid_str: ' + dpid_str
if dpid == dpid_str:
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
print 'Flow stats requets sent to: ' + str(connection)
def _exec_cmd_get_flow_stats(self, event):
try:
msg = event.msg
dpid = strToDPID(msg['dpid'])
con = core.openflow.getConnection(dpid)
if con is None:
raise RuntimeError("No such switch")
match = event.msg.get('match')
table_id = event.msg.get('table_id', 0xff)
out_port = event.msg.get('out_port', of.OFPP_NONE)
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
if match is None:
match = of.ofp_match()
else:
match = dict_to_match(match)
sr.body.match = match
sr.body.table_id = table_id
sr.body.out_port = out_port
con.send(sr)
self.reply(event, **{'type': 'set_table', 'xid': sr.xid})
except:
#log.exception("Exception in get_flow_stats")
log.debug("Exception in get_flow_stats - %s:%s",
sys.exc_info()[0].__name__,
sys.exc_info()[1])
self.reply(event,
exception="%s: %s" %
(sys.exc_info()[0], sys.exc_info()[1]),
traceback=traceback.format_exc())
def request_stats(self): # Get consumption of each node in the topology for i in range(len(info_manager.nodes)): self.count_flow_stats_straight += 1 self.count_port_stats_straight += 1 for h in info_manager.hosts: border_node = info_manager.get_node(h.dpid) try: core.openflow.getConnection(border_node.id).send(of.ofp_stats_request(body=of.ofp_flow_stats_request())) self.count_flow_stats_adaptive += 1 except: continue nodes_list = self.G.nodes() aux = 0 for node in nodes_list: aux += 1 connection = core.openflow.getConnection(node) if connection: connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request())) self.count_port_stats_adaptive += 1 if aux == 0: self.count_port_stats_adaptive = 0 update_monitoring_stats(self.count_flow_stats_straight, self.count_flow_stats_adaptive, self.count_port_stats_straight, self.count_port_stats_adaptive) info_manager.update_network_consumption()
def flow_stat_thread(self):
while True:
# Send flow stat to switch
self._of_send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
# Save timing events to file.
with open(TIMING_EVENT_FILE, 'a') as timing_f:
for (event_name, queue) in [('pkt_in', self.pkt_in_queue),
('flow_mod', self.flow_mod_queue)]:
while not queue.empty():
try:
(start_time, packet) = queue.get()
except Queue.Empty():
break
match = of.ofp_match.from_packet(packet)
print >> timing_f, '%.8f,%s,%s,%s' % (start_time,
event_name,
match.tp_src,
match.tp_dst)
sleep_time = 0
while True:
time.sleep(0.5)
sleep_time += 0.5
with self.lock:
if sleep_time >= self.flow_stat_interval:
break
def dropping (duration=None): msg.priority=65535 msg.actions.append(of.ofp_action_vlan_vid(vlan_vid = 831)) # modify the vlan id from the 830 to 831 print "dropping packets from ", IP_attack for connection in self.myconnections: connection.send(msg) #send the msg to the switch connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request())) #getting the flux stats print "MSG sent"
def _timer_func():
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
# We could even request port stats!
#connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
print "Sent " + str(len(
core.openflow._connections)) + " flowstats request(s)"
log.info("Sent %i flow/port stats request(s)", )
def _on_timer():
for n in nodes:
#Sends out requests to the network nodes
core.openflow.getConnection(n.connection.dpid).send(of.ofp_features_request())
n.connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
n.connection.send(of.ofp_stats_request(body=of.ofp_aggregate_stats_request()))
n.connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def _request_stats():
log.debug('Number of connections: {}'.format(len(
core.openflow.connections)))
log.info('Sending stats requests')
for connection in core.openflow.connections:
log.debug("Sending stats request")
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
def flow_stats_request(self,switch):
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
match = of.ofp_match()
sr.body.match = match
sr.body.table_id = 0xff
sr.body.out_port = of.OFPP_NONE
self.switches[switch]['connection'].send(sr)
def requestStats(self):
"Send all switches a flow statistics request"
self.flowstats = []
for connection in core.openflow._connections.values():
connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
return True
def flow_stats_request(self, switch):
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
match = of.ofp_match()
sr.body.match = match
sr.body.table_id = 0xff
sr.body.out_port = of.OFPP_NONE
self.switches[switch]['connection'].send(sr)
def _timer_func (self):
for connection in core.openflow._connections.values():
print "connection is"
print connection
#if openflowconnection[1]==2:
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
# connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)", len(core.openflow._connections))
def _send_ofp_stats_request(self):
for connection in core.openflow._connections.values():
connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(
of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)",
len(core.openflow._connections))
core.flow_stats._raise_StatsEvent() #invoke event
def send_stats_requests():
"""
Send stats request to the connecting switch
"""
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)", len(core.openflow._connections))
def _timer_func():
for connection in core.openflow._connections.values():
dpid_str = dpidToStr(connection.dpid)
# 给每个connection的sw发送request 可以加if判断发送哪个
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
def timer_func():
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(
of.ofp_stats_request(body=of.ofp_aggregate_stats_request())
) # ???????????????not supported in POX yet
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)",
len(core.openflow._connections))
def _timer_func ():
for connection in core.openflow._connections.values():
#log.debug("!!!!!!" + dpidToStr(connection.dpid))
if(dpidToStr(connection.dpid) == "00-00-00-00-00-05"):
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)", len(core.openflow._connections))
def _handle_PacketIn(self, event):
"""
Handle packet in messages from the switch to implement above algorithm.
"""
packet = event.parsed
print "Rxed packet: ", packet
self.handle_IP_packet(packet)
for con in core.openflow.connections:
con.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def requestStats(self):
"Send all switches a flow statistics request"
self.flowstats = []
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
self.log.debug("ravel: sent {0} flow stats requests".format(
len(core.openflow._connections)))
return True
def _handle_PacketIn (self, event):
"""
Handle packet in messages from the switch to implement above algorithm.
"""
packet = event.parsed
print "Rxed packet: ", packet
self.handle_IP_packet(packet)
for con in core.openflow.connections:
con.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def send_stats_requests():
"""
Send stats request to the connecting switch
"""
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)",
len(core.openflow._connections))
def request_stats_loop():
next_time = math.floor(time.time()) + 0.5
while True:
for conn in core.openflow.connections:
conn.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
while (time.time() >= next_time):
next_time += stat_interval_seconds
time.sleep(next_time - time.time())
def _timer_func():
for connection in core.openflow._connections.values():
global n1
#print 'n1a=',n1
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
global n0
n0 = t.time()
#connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
log.debug("Sent %i flow/port stats request(s)",
len(core.openflow._connections))
def __init__ (self, connection):
self.connection = connection
# My table
self.macToPort = {}
# We want to hear PacketIn messages, so we listen to the connection
connection.addListeners(self)
print "stat message is sent to sw_dpid: ", dpid_to_str(self.connection.dpid)
self.connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def start_migration():
print "Start migration..."
# bring down the interfaces at ovs-1
print "bring down the interfaces in ovs-1"
remote_cmd.ssh_run_cmd(ovs1_IP, "sudo sh interface-down.sh")
for connection in core.openflow._connections.values():
if connection.dpid == oldswitch_dpid:
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
log.debug("Sent %i flow/port stats request(s)", len(core.openflow._connections))
def requestStats(self):
"Send all switches a flow statistics request"
self.flowstats = []
for connection in core.openflow._connections.values():
connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
self.log.debug("ravel: sent {0} flow stats requests".format(
len(core.openflow._connections)))
return True
def honeypot(): print "Honeypot" msg.actions.append(of.ofp_action_dl_addr.set_dst(mac_honey)) # honeypot MAC address msg.actions.append(of.ofp_action_vlan_vid(vlan_vid = 831)) # modify the vlan id from the 830 to 831 msg.actions.append(of.ofp_action_nw_addr.set_dst(ip_honeypot)) # action to send the flux to the honey_pot msg.actions.append(of.ofp_action_output(port = 6)) # which port the honeypot is connected # see how i can get this port by python for connection in self.myconnections: connection.send(msg) #send the msg to the switch connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request())) #getting the flux stats print "MSG sent"
def enable_flow_stats_retrieval(self, interval_secs):
"""
Starts a timer that periodically requests the switch to send flow statistics.
The reply will be received through a FlowStatsReceived event.
"""
self._stats_req_timer = recoco.Timer(
interval_secs,
lambda: self._connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request())),
recurring=True)
def flow_stats_polling (self):
"""
Send flow_stats_request every 1sec.
"""
msg = of.ofp_stats_request(body = of.ofp_flow_stats_request())
self.connection.send(msg)
# Start next thread after 1sec.
t = threading.Timer(1, self.flow_stats_polling)
t.start()
def launch_stats_query(self):
"""Sends an OpenFlow FlowStatsRequest and PortStatsRequest to the switch associated with this object."""
if self.is_connected:
self.connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
self._last_flow_stats_query_send_time = time.time()
self.connection.send(
of.ofp_stats_request(body=of.ofp_port_stats_request()))
self._last_port_stats_query_send_time = time.time()
log.debug('Sent flow and port stats requests to switch: ' +
dpid_to_str(self.dpid))
def _init(self, match=None, table_id=0xff, out_port=of.OFPP_NONE):
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
if match is None:
match = of.ofp_match()
else:
match = dict_to_match(match)
sr.body.match = match
sr.body.table_id = table_id
sr.body.out_port = out_port
self._con.send(sr)
self.xid = sr.xid
def __init__(self, connection):
self.connection = connection
# My table
self.macToPort = {}
# We want to hear PacketIn messages, so we listen to the connection
connection.addListeners(self)
print "stat message is sent to sw_dpid: ", dpid_to_str(
self.connection.dpid)
self.connection.send(
of.ofp_stats_request(body=of.ofp_flow_stats_request()))
def flow_stats_request(self,switch):
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
match = of.ofp_match()
sr.body.match = match
sr.body.table_id = 0xff
sr.body.out_port = of.OFPP_NONE
try:
self.switches[switch]['connection'].send(sr)
except KeyError, e:
print ( ("ERROR:flow_stats_request: No connection to switch %d" +
" available") % switch )
def flow_stats_request(self,switch):
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
match = of.ofp_match()
sr.body.match = match
sr.body.table_id = 0xff
sr.body.out_port = of.OFPP_NONE
try:
self.switches[switch]['connection'].send(sr)
except KeyError, e:
print ( ("ERROR:flow_stats_request: No connection to switch %d" +
" available") % switch )
def _init (self, match=None, table_id=0xff, out_port=of.OFPP_NONE):
sr = of.ofp_stats_request()
sr.body = of.ofp_flow_stats_request()
if match is None:
match = of.ofp_match()
else:
match = dict_to_match(match)
sr.body.match = match
sr.body.table_id = table_id
sr.body.out_port = out_port
self._con.send(sr)
self.xid = sr.xid
def _handle_timer (self, dpid):
sw = self.switches.get(dpid)
if sw is None:
return
# send stat request
body = of.ofp_flow_stats_request()
## DAMN! stats can't be requested based on priority.
#body.priority = of.OFP_DEFAULT_PRIORITY + 1
msg = of.ofp_stats_request(body=body)
core.openflow.sendToDPID(dpid, msg.pack())
core.callDelayed(self.poll_period, self._handle_timer, dpid)
def timer_function ():
"""
Request Flow and Port Stats
"""
for connection in core.openflow._connections.values():
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
connection.send(of.ofp_stats_request(body=of.ofp_port_stats_request()))
global timer_now
timer_now = datetime.datetime.now()
log.debug("Sent %i flow/port stats requests", len(core.openflow._connections))
def _handle_timer(message): print print message connections = core.openflow._connections print 'connected switch:', for connection in connections: print connection, # print 'connection:',connection.dpid,connection.ports #to see what connection consists of connection.send(of.ofp_stats_request(body = of.ofp_flow_stats_request())) connection.send(of.ofp_stats_request(body = of.ofp_port_stats_request())) #delet all flows connection.send(of.ofp_flow_mod(match = of.ofp_match(),command = of.OFPFC_DELETE)) print '\n'
def honeypot():
print "Honeypot"
msg.actions.append(of.ofp_action_dl_addr.set_dst(mac_honey)) # honeypot MAC address
msg.actions.append(of.ofp_action_vlan_vid(vlan_vid = 831)) # modify the vlan id from the 830 to 831
msg.actions.append(of.ofp_action_nw_addr.set_dst(ip_honeypot)) # action to send the flux to the honey_pot
msg.actions.append(of.ofp_action_output(port = 6)) # which port the honeypot is connected
ts = time.time()
st = datetime.datetime.fromtimestamp(ts).strftime('%H:%M:%S %d-%m-%Y')
outputLog.write("Flow Deviated "+ IP_attack +"-->" + IP_dst +' '+ str(st) +'\n')
# see how i can get this port by python
for connection in self.myconnections:
connection.send(msg) #send the msg to the switch
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request())) #getting the flux stats
print "MSG sent to switchs"
def start_migration(self):
log.info("start copying flow tables...")
for connection in core.openflow._connections.values():
if connection.dpid == ovs1_dpid or connection.dpid == ovs2_dpid or connection.dpid == ovs3_dpid:
connection.send(of.ofp_stats_request(body=of.ofp_flow_stats_request()))
log.debug("Sent %i flow/port stats request(s)", len(core.openflow._connections))
# send barrier message to ensure all flows has been installed
connection.send(of.ofp_barrier_request(xid=copy_barrier_id))
connection.addListenerByName("BarrierIn", _handle_flow_ready)
global barrier_count
barrier_count += 1
def handle_congestion_notification(self, connections, dpid):
""" Upon reception of a congestion notification, requests for flow stats in the congestioned switch """
dpid = dpid[:len(dpid)-1]
dpid = dpid[len(dpid)-12:]
switch=dict.fromkeys(['dpid', 'flow_stats', 'drop_policy', 'bw_policy'])
switch['drop_policy'] = 'Random'
switch['bw_policy'] = 'Penalty'
switch['dpid'] = dpid
switch['flow_stats'] = []
switch_states.append(switch)
Timer(flow_update_time, self.update_flow_stats, recurring = True, args=[dpid, connections])
msg = of.ofp_stats_request(body=of.ofp_flow_stats_request())
print 'Flow stats requets sent to: ' + str(connections)
self.send_command_to_switch(dpid, connections, msg)