def _update_weight(self, dpid1, dpid2, weight="weight", value="1"):
try:
graph = core.overseer_topology.graph
dpid1 = int(dpid1, 16)
dpid2 = int(dpid2, 16)
value = float(value)
if graph.has_edge(dpid1, dpid2):
graph[dpid1][dpid2][weight] = value
return utils.create_response("")
else:
return make_error("Invalid link")
except ValueError:
return make_error("dpid must be hex and value must be float")
def _update_weight(self, dpid1, dpid2, weight="weight", value="1"):
try:
graph = core.overseer_topology.graph
dpid1 = int(dpid1, 16)
dpid2 = int(dpid2, 16)
value = float(value)
if graph.has_edge(dpid1, dpid2):
graph[dpid1][dpid2][weight] = value
return utils.create_response("")
else:
return make_error("Invalid link")
except ValueError:
return make_error("dpid must be hex and value must be float")
def _exec_set_entry(self, quintet, option):
try:
path_identifier = utils.deserialize_path_identifier(quintet)
core.overseer.path_preference_table._table[path_identifier] = ApiHandler.OPTIONS[option]
return utils.create_response("")
except KeyError:
return make_error("No such entry in path preference table")
def _exec_get_entry(self, quintet):
try:
path_identifier = utils.deserialize_path_identifier(quintet)
entry = core.overseer.path_preference_table._table[path_identifier]
return utils.create_response(ApiHandler.REVERSED_OPTIONS[entry])
except KeyError:
return make_error("No such entry in path preference table")
def _exec_get_flow_stats (self, dpid, *args, **kw):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
return OFFlowStatsRequest(con, *args, **kw).get_response()
def _exec_get_switch_desc (self, dpid):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
return OFSwitchDescRequest(con).get_response()
def _exec_set_table (self, dpid, flows):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
return OFSetTableRequest(con, flows).get_response()
def _exec_set_table(self, dpid, flows):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
return OFSetTableRequest(con, flows).get_response()
def _exec_get_switch_desc(self, dpid):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
return OFSwitchDescRequest(con).get_response()
def _exec_remove_entry(self, quintet):
try:
path_identifier = utils.deserialize_path_identifier(quintet)
del core.overseer.path_preference_table._table[path_identifier]
return utils.create_response("")
except KeyError:
return make_error("No such entry in path preference table")
def _exec_get_entry(self, quintet):
try:
path_identifier = utils.deserialize_path_identifier(quintet)
entry = core.overseer.path_preference_table._table[path_identifier]
return utils.create_response(ApiHandler.REVERSED_OPTIONS[entry])
except KeyError:
return make_error("No such entry in path preference table")
def _exec_remove_entry(self, quintet):
try:
path_identifier = utils.deserialize_path_identifier(quintet)
del core.overseer.path_preference_table._table[path_identifier]
return utils.create_response("")
except KeyError:
return make_error("No such entry in path preference table")
def _exec_get_flow_stats(self, dpid, *args, **kw):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
return OFFlowStatsRequest(con, *args, **kw).get_response()
def _exec_get_pstats (self, dpid, *args, **kw):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
params = OFPortStatsRequest(con, *args, **kw).get_response()
params['ver'] = self.version
return params
def _exec_set_entry(self, quintet, option):
try:
path_identifier = utils.deserialize_path_identifier(quintet)
core.overseer.path_preference_table._table[
path_identifier] = ApiHandler.OPTIONS[option]
return utils.create_response("")
except KeyError:
return make_error("No such entry in path preference table")
def _exec_get_astats (self, dpid):
dpid = strToDPID(dpid)
con = core.openflow.getConnection(dpid)
if con is None:
return make_error("No such switch")
params = OFAggregateStatsRequest(con).get_response()
params['ver'] = self.version
return params
def _exec_send (self, session_id, msg, seq = None):
"""
Send a message (or messages)
If seq is specified, it is a sequence number. This can help
eliminate problems with ordering.
"""
ses = self._get_session(session_id)
if ses is None:
return make_error("No such session")
r = ses.rx(msg, seq)
if isinstance(r, dict) and 'result' in r:
r['result']['session'] = ses._session_id
return r
def _exec_send(self, session_id, msg, seq=None):
"""
Send a message (or messages)
If seq is specified, it is a sequence number. This can help
eliminate problems with ordering.
"""
ses = self._get_session(session_id)
if ses is None:
return make_error("No such session")
r = ses.rx(msg, seq)
if isinstance(r, dict) and 'result' in r:
r['result']['session'] = ses._session_id
return r
def _handle_ErrorIn (self, event):
if event.ofp.xid != self.xid: return
self._finish(make_error("OpenFlow Error", data=event.asString()))
def _handle_ErrorIn (self, event):
if event.ofp.xid != self.xid: return
if self.done: return
self.clear_table()
self.done = True
self._finish(make_error("OpenFlow Error", data=event.asString()))
def _handle_ErrorIn(self, event):
if event.ofp.xid != self.xid: return
if self.done: return
self.clear_table()
self.done = True
self._finish(make_error("OpenFlow Error", data=event.asString()))
def _handle_ErrorIn(self, event):
if event.ofp.xid != self.xid: return
self._finish(make_error("OpenFlow Error", data=event.asString()))
