def __get_switch_flow_with_id(self, dpid, flow_id):
ret = {}
flow = mask = None
try:
dpid, flow, mask, prio = self.__flow_id_to_dpid_flow_mask_prio(
flow_id)
single_flow_list = mul.get_single_flow(int(dpid, 16), flow, mask,
int(prio, 16))
if len(single_flow_list) != 1:
raise Exception
for resp in single_flow_list:
#resp = single_flow_list[0]
ret = {'flow_id': flow_id}
ret.update(self.__c_ofp_flow_info_serialization(resp))
ret.update(self.__nbapi_action_serialization(resp))
except Exception:
ret = {
'error_message': 'failed to get flow',
'reason': 'no such flow'
}
finally:
if flow != None:
mul.nbapi_flow_free(flow)
if mask != None:
mul.nbapi_flow_free(mask)
return ret
def __get_switch_flow_with_id(self, dpid, flow_id):
ret = {}
flow = mask = None
try:
dpid, flow, mask, prio = self.__flow_id_to_dpid_flow_mask_prio(flow_id)
single_flow_list = mul.get_single_flow(int(dpid, 16) , flow, mask, int(prio, 16))
if len(single_flow_list) != 1:
raise Exception
for resp in single_flow_list:
#resp = single_flow_list[0]
ret = {'flow_id' : flow_id}
ret.update(self.__c_ofp_flow_info_serialization(resp))
ret.update(self.__nbapi_action_serialization(resp))
except Exception:
ret = {'error_message' : 'failed to get flow', 'reason' : 'no such flow'}
finally:
if flow != None:
mul.nbapi_flow_free(flow)
if mask != None:
mul.nbapi_flow_free(mask)
return ret
#if new_flow_id == None:
# raise Exception, 'this flow is rejected by switch'
if flow_id and flow_id!=new_flow_id:
ret = self.delete(None, flow_id)
else:
ret = { 'flow_id' : str(new_flow_id) }
else:
raise Exception, 'flow already exist'
except Exception, e:
ret.update({"error_message" : "failed to add flow!", "reason" : str(e)})
finally:
if mdata != None:
mul.nbapi_mdata_free(mdata)
if flow != None:
mul.nbapi_flow_free(flow)
if mask != None:
mul.nbapi_flow_free(mask)
if flow_id:
if 'error' not in str(ret):#delete success. now ret={flow_id:deleted_flow_id}
ret = {'flow_id' : str(new_flow_id)}#change to ret = {flow_id:added_flow_id}
self.finish(ret)
def put(self, dpid=None, flow_id=None):
pass
def delete(self, dpid=None, flow_id=None):
ret = {}
try:
that_flow_id=None
flow_list = mul.get_flow(int(dpid, 16))
'bps': mul.nbapi_parse_bps_to_str(resp.bps),
'pps': mul.nbapi_parse_bps_to_str(resp.pps),
'pkt_count': resp.packet_count,
'byte_count': resp.byte_count,
'alive': resp.duration_sec
}
else:
raise Exception, 'this flow disabled'
except Exception, e:
ret = {
'error_message': 'failed to get flow stats',
'reason': str(e)
}
finally:
if flow != None:
mul.nbapi_flow_free(flow)
if mask != None:
mul.nbapi_flow_free(mask)
return ret
def __c_ofp_flow_info_serialization(self, resp):
flag = 'static' if resp.flags & mul.C_FL_ENT_STATIC else 'dynamic'
flag += ' clone' if resp.flags & mul.C_FL_ENT_CLONE else ' no-clone'
flag += ' not-verified' if resp.flags & mul.C_FL_ENT_NOT_INST else ' verified'
flag += ' local' if resp.flags & mul.C_FL_ENT_LOCAL else ' non-local'
flag += ' stale' if resp.flags & mul.C_FL_ENT_STALE else ' clean'
flag += ' residual' if resp.flags & mul.C_FL_ENT_RESIDUAL else ''
stat = {}
if resp.flags & mul.C_FL_ENT_GSTATS:
stat = {
