def _exec_cmd_set_table(self, event):
try:
msg = event.msg
dpid = strToDPID(msg["dpid"])
con = core.openflow.getConnection(dpid)
if con is None:
raise RuntimeError("No such switch")
xid = of.generate_xid()
fm = of.ofp_flow_mod()
fm.xid = xid
fm.command = of.OFPFC_DELETE
con.send(fm)
bar = of.ofp_barrier_request()
bar.xid = xid
con.send(bar)
for flow in msg.get("flows", []):
fm = dict_to_flow_mod(flow)
fm.xid = xid
con.send(fm)
# con.send(of.ofp_barrier_request(xid=xid))
con.send(of.ofp_barrier_request(xid=xid))
self.reply(event, **{"type": "set_table", "xid": xid})
except:
# log.exception("Exception in set_table")
log.debug("Exception in set_table - %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 _modify_flow(self, command_type):
global Barrier_Modifyxid
msg = of.ofp_flow_mod()
if command_type == "MOD_ST":
msg.command = of.OFPFC_MODIFY_STRICT
elif command_type == "MOD":
msg.command = of.OFPFC_MODIFY
self._match_field(msg)
for connection in core.openflow._connections.values():
if str(dpidToStr(connection.dpid)) == self.dpid:
"""match actions"""
self._match_action(msg)
connection.send(msg)
barrier = of.ofp_barrier_request()
barrier.xid = of.generate_xid()
Barrier_Modifyxid = barrier.xid
connection.send(barrier)
# for recover
self._record_rules(dpid=self.dpid, msg=msg)
def _modify_flow(self,command_type):
global Modifyxid
Modifyxid = of.generate_xid()
msg = of.ofp_flow_mod()
# print "====mod payload ====\n",self.payload
if command_type == "MOD_ST":
msg.command = of.OFPFC_MODIFY_STRICT
elif command_type == "MOD":
msg.command = of.OFPFC_MODIFY
self._match_field(msg)
for connection in core.openflow._connections.values() :
if str(dpidToStr(connection.dpid)) == self.dpid:
"""match actions"""
self._match_action(msg)
connection.send(msg)
barrier = of.ofp_barrier_request()
barrier.xid = xid
connection.send(barrier)
# for recover
self._record_rules(dpid = self.dpid , msg = msg)
def _init(self, flows=[]):
self.done = False
xid = of.generate_xid()
self.xid = xid
self.clear_table(xid=xid)
self.count = 1 + len(flows)
for flow in flows:
fm = dict_to_flow_mod(flow)
fm.xid = xid
self._con.send(fm)
self._con.send(of.ofp_barrier_request(xid=xid))
def _init (self, flows = []):
self.done = False
xid = of.generate_xid()
self.xid = xid
self.clear_table(xid=xid)
self.count = 1 + len(flows)
for flow in flows:
fm = dict_to_flow_mod(flow)
fm.xid = xid
self._con.send(fm)
self._con.send(of.ofp_barrier_request(xid=xid))
def _of_test_once():
log.info("get connections...")
for connection in core.openflow._connections.values():
if connection.dpid == g1_dpid:
global start_time
start_time = time.time()
msg = of.ofp_flow_mod()
msg.match.in_port = 1
msg.xid = of.generate_xid()
global xid
xid = msg.xid
connection.send(msg)
connection.send(of.ofp_barrier_request(xid=msg.xid))
connection.addListenerByName("BarrierIn", _handle_BarrierIn)
def _add_flow(self, command_type):
global Barrier_Addxid
msg = of.ofp_flow_mod()
msg.command = of.OFPFC_ADD
self._match_field(msg)
for connection in core.openflow._connections.values():
if str(dpidToStr(connection.dpid)) == self.dpid:
"""match actions"""
self._match_action(msg)
connection.send(msg)
barrier = of.ofp_barrier_request()
barrier.xid = of.generate_xid()
Barrier_Addxid = barrier.xid
connection.send(barrier)
# for recover
self._record_rules(dpid=self.dpid, msg=msg)
def _add_flow(self,command_type):
global Barrier_Addxid
msg = of.ofp_flow_mod()
msg.command = of.OFPFC_ADD
self._match_field(msg)
for connection in core.openflow._connections.values() :
if str(dpidToStr(connection.dpid)) == self.dpid:
"""match actions"""
self._match_action(msg)
connection.send(msg)
barrier = of.ofp_barrier_request()
barrier.xid = of.generate_xid()
Barrier_Addxid = barrier.xid
connection.send(barrier)
# for recover
self._record_rules(dpid = self.dpid , msg = msg)
def _exec_cmd_set_table (self, event):
try:
msg = event.msg
dpid = strToDPID(msg['dpid'])
con = core.openflow.getConnection(dpid)
if con is None:
raise RuntimeError("No such switch")
xid = of.generate_xid()
"""
As modificações em um tabela de fluxo do controlador é feito com a mensagem OFPT_FLOW_MOD
"""
fm = of.ofp_flow_mod()
fm.xid = xid
"OFPFC_DELETE: Exclui todos os fluxos correspondentes .."
fm.command = of.OFPFC_DELETE
con.send(fm)
bar = of.ofp_barrier_request()
bar.xid = xid
con.send(bar)
for flow in msg.get('flows',[]):
fm = dict_to_flow_mod(flow)
fm.xid = xid
con.send(fm)
#con.send(of.ofp_barrier_request(xid=xid))
con.send(of.ofp_barrier_request(xid=xid))
self.reply(event,**{'type':'set_table','xid':xid})
except:
#log.exception("Exception in set_table")
log.debug("Exception in set_table - %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 _delete_flow(self,command_type):
Deletexid = of.generate_xid()
msg = of.ofp_flow_mod()
if command_type == "DEL_ST":
msg.command = of.OFPFC_DELETE_STRICT
elif command_type == "DEL":
msg.command = of.OFPFC_DELETE
# print "=== del payload ===\n",self.payload
self._match_field(msg)
for connection in core.openflow._connections.values() :
if str(dpidToStr(connection.dpid)) == self.dpid:
connection.send(msg)
barrier = of.ofp_barrier_request()
barrier.xid = xid
connection.send(barrier)
# for recover
self._record_rules(dpid = self.dpid , msg = msg)
def _exec_cmd_set_table(self, event):
try:
msg = event.msg
dpid = strToDPID(msg['dpid'])
con = core.openflow.getConnection(dpid)
if con is None:
raise RuntimeError("No such switch")
xid = of.generate_xid()
fm = of.ofp_flow_mod()
fm.xid = xid
fm.command = of.OFPFC_DELETE
con.send(fm)
bar = of.ofp_barrier_request()
bar.xid = xid
con.send(bar)
for flow in msg.get('flows', []):
fm = dict_to_flow_mod(flow)
fm.xid = xid
con.send(fm)
#con.send(of.ofp_barrier_request(xid=xid))
con.send(of.ofp_barrier_request(xid=xid))
self.reply(event, **{'type': 'set_table', 'xid': xid})
except:
#log.exception("Exception in set_table")
log.debug("Exception in set_table - %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 _delete_flow(self, command_type):
global Barrier_Deletexid
msg = of.ofp_flow_mod()
if command_type == "DEL_ST":
msg.command = of.OFPFC_DELETE_STRICT
elif command_type == "DEL":
msg.command = of.OFPFC_DELETE
self._match_field(msg)
for connection in core.openflow._connections.values():
if str(dpidToStr(connection.dpid)) == self.dpid:
connection.send(msg)
barrier = of.ofp_barrier_request()
barrier.xid = of.generate_xid()
Barrier_Deletexid = barrier.xid
connection.send(barrier)
# for recover
self._record_rules(dpid=self.dpid, msg=msg)
def __init__(self): self.done = False xid = of.generate_xid() self.xid = xid self.count = 0
