##
# Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
-# This file is part of openmano
+# This file is part of openvim
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# contact with: nfvlabs@tid.es
##
-'''
+"""
Implement the plugging for floodligth openflow controller
It creates the class OF_conn to create dataplane connections
with static rules based on packet destination MAC address
-'''
-
-__author__="Pablo Montes, Alfonso Tierno"
-__date__ ="$28-oct-2014 12:07:15$"
+"""
+__author__ = "Pablo Montes, Alfonso Tierno"
+__date__ = "$28-oct-2014 12:07:15$"
import json
import requests
import logging
+import openflow_conn
+
+
+class OF_conn(openflow_conn.OpenflowConn):
+ """
+ Openflow Connector for Floodlight.
+ No MAC learning is used
+ version 0.9 or 1.X is autodetected
+ version 1.X is in progress, not finished!!!
+ """
-class OF_conn():
- ''' Openflow Connector for Floodlight.
- No MAC learning is used
- version 0.9 or 1.X is autodetected
- version 1.X is in progress, not finished!!!
- '''
def __init__(self, params):
- ''' Constructor.
- params is a dictionay with the following keys:
- of_dpid: DPID to use for this controller
- of_ip: controller IP address
- of_port: controller TCP port
- of_version: version, can be "0.9" or "1.X". By default it is autodetected
- of_debug: debug level for logging. Default to ERROR
- other keys are ignored
- Raise an exception if same parameter is missing or wrong
- '''
- #check params
- if "of_ip" not in params or params["of_ip"]==None or "of_port" not in params or params["of_port"]==None:
+ """
+ Constructor
+ :param self:
+ :param params: dictionay with the following keys:
+ of_dpid: DPID to use for this controller
+ of_ip: controller IP address
+ of_port: controller TCP port
+ of_version: version, can be "0.9" or "1.X". By default it is autodetected
+ of_debug: debug level for logging. Default to ERROR
+ other keys are ignored
+ :return: Raise an ValueError exception if same parameter is missing or wrong
+ """
+ # check params
+ if "of_ip" not in params or params["of_ip"] == None or "of_port" not in params or params["of_port"] == None:
raise ValueError("IP address and port must be provided")
+ openflow_conn.OpenflowConn.__init__(self, params)
+
self.name = "Floodlight"
self.dpid = str(params["of_dpid"])
- self.url = "http://%s:%s" %( str(params["of_ip"]), str(params["of_port"]) )
+ self.url = "http://%s:%s" % (str(params["of_ip"]), str(params["of_port"]))
- self.pp2ofi={} # From Physical Port to OpenFlow Index
- self.ofi2pp={} # From OpenFlow Index to Physical Port
- self.headers = {'content-type':'application/json', 'Accept':'application/json'}
- self.version= None
+ self.pp2ofi = {} # From Physical Port to OpenFlow Index
+ self.ofi2pp = {} # From OpenFlow Index to Physical Port
+ self.headers = {'content-type': 'application/json', 'Accept': 'application/json'}
+ self.version = None
self.logger = logging.getLogger('vim.OF.FL')
- self.logger.setLevel( getattr(logging, params.get("of_debug", "ERROR") ) )
- self._set_version(params.get("of_version") )
-
+ self.logger.setLevel(getattr(logging, params.get("of_debug", "ERROR")))
+ self._set_version(params.get("of_version"))
+
def _set_version(self, version):
- '''set up a version of the controller.
+ """
+ set up a version of the controller.
Depending on the version it fills the self.ver_names with the naming used in this version
- '''
- #static version names
- if version==None:
- self.version= None
- elif version=="0.9":
- self.version= version
+ :param version: Openflow controller version
+ :return: Raise an ValueError exception if same parameter is missing or wrong
+ """
+ # static version names
+ if version == None:
+ self.version = None
+ elif version == "0.9":
+ self.version = version
self.name = "Floodlightv0.9"
- self.ver_names={
- "dpid": "dpid",
- "URLmodifier": "staticflowentrypusher",
- "destmac": "dst-mac",
- "vlanid": "vlan-id",
- "inport": "ingress-port",
- "setvlan": "set-vlan-id",
- "stripvlan": "strip-vlan",
+ self.ver_names = {
+ "dpid": "dpid",
+ "URLmodifier": "staticflowentrypusher",
+ "destmac": "dst-mac",
+ "vlanid": "vlan-id",
+ "inport": "ingress-port",
+ "setvlan": "set-vlan-id",
+ "stripvlan": "strip-vlan",
}
- elif version[0]=="1" : #version 1.X
- self.version= version
+ elif version[0] == "1": # version 1.X
+ self.version = version
self.name = "Floodlightv1.X"
- self.ver_names={
- "dpid": "switchDPID",
- "URLmodifier": "staticflowpusher",
- "destmac": "eth_dst",
- "vlanid": "eth_vlan_vid",
- "inport": "in_port",
- "setvlan": "set_vlan_vid",
- "stripvlan": "strip_vlan",
+ self.ver_names = {
+ "dpid": "switchDPID",
+ "URLmodifier": "staticflowpusher",
+ "destmac": "eth_dst",
+ "vlanid": "eth_vlan_vid",
+ "inport": "in_port",
+ "setvlan": "set_vlan_vid",
+ "stripvlan": "strip_vlan",
}
else:
raise ValueError("Invalid version for floodlight controller")
-
+
def get_of_switches(self):
- ''' Obtain a a list of switches or DPID detected by this controller
- Return
- >=0, list: list length, and a list where each element a tuple pair (DPID, IP address)
- <0, text_error: if fails
- '''
+ """
+ Obtain a a list of switches or DPID detected by this controller
+ :return: list where each element a tuple pair (DPID, IP address)
+ Raise an OpenflowconnConnectionException or OpenflowconnConnectionException exception if same
+ parameter is missing or wrong
+ """
try:
- of_response = requests.get(self.url+"/wm/core/controller/switches/json", headers=self.headers)
+ of_response = requests.get(self.url + "/wm/core/controller/switches/json", headers=self.headers)
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code != 200:
self.logger.warning("get_of_switches " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("get_of_switches " + error_text)
info = of_response.json()
if type(info) != list and type(info) != tuple:
self.logger.error("get_of_switches. Unexpected response not a list %s", str(type(info)))
- return -1, "Unexpected response, not a list. Wrong version?"
- if len(info)==0:
- return 0, info
- #autodiscover version
+ raise openflow_conn.OpenflowconnUnexpectedResponse("Unexpected response, not a list. Wrong version?")
+ if len(info) == 0:
+ return info
+ # autodiscover version
if self.version == None:
if 'dpid' in info[0] and 'inetAddress' in info[0]:
self._set_version("0.9")
elif 'switchDPID' in info[0] and 'inetAddress' in info[0]:
self._set_version("1.X")
else:
- self.logger.error("get_of_switches. Unexpected response, not found 'dpid' or 'switchDPID' field: %s", str(info[0]))
- return -1, "Unexpected response, not found 'dpid' or 'switchDPID' field. Wrong version?"
-
- switch_list=[]
+ self.logger.error(
+ "get_of_switches. Unexpected response, not found 'dpid' or 'switchDPID' field: %s",
+ str(info[0]))
+ raise openflow_conn.OpenflowconnUnexpectedResponse("Unexpected response, not found 'dpid' or "
+ "'switchDPID' field. Wrong version?")
+
+ switch_list = []
for switch in info:
- switch_list.append( (switch[ self.ver_names["dpid"] ], switch['inetAddress']) )
- return len(switch_list), switch_list
- except (requests.exceptions.RequestException, ValueError) as e:
- #ValueError in the case that JSON can not be decoded
+ switch_list.append((switch[self.ver_names["dpid"]], switch['inetAddress']))
+ return switch_list
+ except requests.exceptions.RequestException as e:
error_text = type(e).__name__ + ": " + str(e)
self.logger.error("get_of_switches " + error_text)
- return -1, error_text
+ raise openflow_conn.OpenflowconnConnectionException(error_text)
+ except ValueError as e:
+ # ValueError in the case that JSON can not be decoded
+ error_text = type(e).__name__ + ": " + str(e)
+ self.logger.error("get_of_switches " + error_text)
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
def get_of_rules(self, translate_of_ports=True):
- ''' Obtain the rules inserted at openflow controller
- Params:
- translate_of_ports: if True it translates ports from openflow index to physical switch name
- Return:
- 0, dict if ok: with the rule name as key and value is another dictionary with the following content:
+ """
+ Obtain the rules inserted at openflow controller
+ :param translate_of_ports: if True it translates ports from openflow index to physical switch name
+ :return: dict if ok: with the rule name as key and value is another dictionary with the following content:
priority: rule priority
name: rule name (present also as the master dict key)
ingress_port: match input port of the rule
vlan_id: match vlan tag of the rule, can be missing or None if not apply
actions: list of actions, composed by a pair tuples:
(vlan, None/int): for stripping/setting a vlan tag
- (out, port): send to this port
- switch: DPID, all
- -1, text_error if fails
- '''
-
- #get translation, autodiscover version
- if len(self.ofi2pp) == 0:
- r,c = self.obtain_port_correspondence()
- if r<0:
- return r,c
- #get rules
+ (out, port): send to this port
+ switch: DPID, all
+ Raise an openflowconnUnexpectedResponse exception if fails with text_error
+ """
+
try:
- of_response = requests.get(self.url+"/wm/%s/list/%s/json" %(self.ver_names["URLmodifier"], self.dpid),
- headers=self.headers)
+ # get translation, autodiscover version
+ if len(self.ofi2pp) == 0:
+ self.obtain_port_correspondence()
+
+ of_response = requests.get(self.url + "/wm/%s/list/%s/json" % (self.ver_names["URLmodifier"], self.dpid),
+ headers=self.headers)
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code != 200:
self.logger.warning("get_of_rules " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("get_of_rules " + error_text)
info = of_response.json()
if type(info) != dict:
self.logger.error("get_of_rules. Unexpected response not a dict %s", str(type(info)))
- return -1, "Unexpected response, not a dict. Wrong version?"
- rule_dict={}
- for switch,switch_info in info.iteritems():
+ raise openflow_conn.OpenflowconnUnexpectedResponse("Unexpected response, not a dict. Wrong version?")
+ rule_dict = {}
+ for switch, switch_info in info.iteritems():
if switch_info == None:
continue
if str(switch) != self.dpid:
continue
- for name,details in switch_info.iteritems():
+ for name, details in switch_info.iteritems():
rule = {}
rule["switch"] = str(switch)
- #rule["active"] = "true"
+ # rule["active"] = "true"
rule["priority"] = int(details["priority"])
- if self.version[0]=="0":
+ if self.version[0] == "0":
if translate_of_ports:
- rule["ingress_port"] = self.ofi2pp[ details["match"]["inputPort"] ]
+ rule["ingress_port"] = self.ofi2pp[details["match"]["inputPort"]]
else:
rule["ingress_port"] = str(details["match"]["inputPort"])
dst_mac = details["match"]["dataLayerDestination"]
vlan = details["match"]["dataLayerVirtualLan"]
if vlan != -1:
rule["vlan_id"] = vlan
- actionlist=[]
+ actionlist = []
for action in details["actions"]:
- if action["type"]=="OUTPUT":
+ if action["type"] == "OUTPUT":
if translate_of_ports:
- port = self.ofi2pp[ action["port"] ]
+ port = self.ofi2pp[action["port"]]
else:
port = action["port"]
- actionlist.append( ("out", port) )
- elif action["type"]=="STRIP_VLAN":
- actionlist.append( ("vlan",None) )
- elif action["type"]=="SET_VLAN_ID":
- actionlist.append( ("vlan", action["virtualLanIdentifier"]) )
+ actionlist.append(("out", port))
+ elif action["type"] == "STRIP_VLAN":
+ actionlist.append(("vlan", None))
+ elif action["type"] == "SET_VLAN_ID":
+ actionlist.append(("vlan", action["virtualLanIdentifier"]))
else:
- actionlist.append( (action["type"], str(action) ))
- self.logger.warning("get_of_rules() Unknown action in rule %s: %s", rule["name"], str(action))
+ actionlist.append((action["type"], str(action)))
+ self.logger.warning("get_of_rules() Unknown action in rule %s: %s", rule["name"],
+ str(action))
rule["actions"] = actionlist
- elif self.version[0]=="1":
+ elif self.version[0] == "1":
if translate_of_ports:
- rule["ingress_port"] = self.ofi2pp[ details["match"]["in_port"] ]
+ rule["ingress_port"] = self.ofi2pp[details["match"]["in_port"]]
else:
rule["ingress_port"] = details["match"]["in_port"]
if "eth_dst" in details["match"]:
if dst_mac != "00:00:00:00:00:00":
rule["dst_mac"] = dst_mac
if "eth_vlan_vid" in details["match"]:
- vlan = int(details["match"]["eth_vlan_vid"],16) & 0xFFF
+ vlan = int(details["match"]["eth_vlan_vid"], 16) & 0xFFF
rule["vlan_id"] = str(vlan)
- actionlist=[]
+ actionlist = []
for action in details["instructions"]["instruction_apply_actions"]:
- if action=="output":
+ if action == "output":
if translate_of_ports:
- port = self.ofi2pp[ details["instructions"]["instruction_apply_actions"]["output"] ]
+ port = self.ofi2pp[details["instructions"]["instruction_apply_actions"]["output"]]
else:
port = details["instructions"]["instruction_apply_actions"]["output"]
- actionlist.append( ("out",port) )
- elif action=="strip_vlan":
- actionlist.append( ("vlan",None) )
- elif action=="set_vlan_vid":
- actionlist.append( ("vlan", details["instructions"]["instruction_apply_actions"]["set_vlan_vid"]) )
+ actionlist.append(("out", port))
+ elif action == "strip_vlan":
+ actionlist.append(("vlan", None))
+ elif action == "set_vlan_vid":
+ actionlist.append(
+ ("vlan", details["instructions"]["instruction_apply_actions"]["set_vlan_vid"]))
else:
- self.logger.error("get_of_rules Unknown action in rule %s: %s", rule["name"], str(action))
- #actionlist.append( (action, str(details["instructions"]["instruction_apply_actions"]) ))
+ self.logger.error("get_of_rules Unknown action in rule %s: %s", rule["name"],
+ str(action))
+ # actionlist.append( (action, str(details["instructions"]["instruction_apply_actions"]) ))
rule_dict[str(name)] = rule
- return 0, rule_dict
- except (requests.exceptions.RequestException, ValueError) as e:
- #ValueError in the case that JSON can not be decoded
+ return rule_dict
+ except requests.exceptions.RequestException as e:
+ error_text = type(e).__name__ + ": " + str(e)
+ self.logger.error("get_of_rules " + error_text)
+ raise openflow_conn.OpenflowconnConnectionException(error_text)
+ except ValueError as e:
+ # ValueError in the case that JSON can not be decoded
error_text = type(e).__name__ + ": " + str(e)
self.logger.error("get_of_rules " + error_text)
- return -1, error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
def obtain_port_correspondence(self):
- '''Obtain the correspondence between physical and openflow port names
- return:
- 0, dictionary: with physical name as key, openflow name as value
- -1, error_text: if fails
- '''
+ """
+ Obtain the correspondence between physical and openflow port names
+ :return: dictionary: with physical name as key, openflow name as value
+ Raise an openflowconnUnexpectedResponse exception if fails with text_error
+ """
try:
- of_response = requests.get(self.url+"/wm/core/controller/switches/json", headers=self.headers)
- #print vim_response.status_code
+ of_response = requests.get(self.url + "/wm/core/controller/switches/json", headers=self.headers)
+ # print vim_response.status_code
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code != 200:
self.logger.warning("obtain_port_correspondence " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("obtain_port_correspondence " + error_text)
info = of_response.json()
-
+
if type(info) != list and type(info) != tuple:
- return -1, "unexpected openflow response, not a list. Wrong version?"
-
+ raise openflow_conn.OpenflowconnUnexpectedResponse("unexpected openflow response, not a list. "
+ "Wrong version?")
+
index = -1
- if len(info)>0:
- #autodiscover version
+ if len(info) > 0:
+ # autodiscover version
if self.version == None:
if 'dpid' in info[0] and 'ports' in info[0]:
self._set_version("0.9")
elif 'switchDPID' in info[0]:
self._set_version("1.X")
else:
- return -1, "unexpected openflow response, Wrong version?"
+ raise openflow_conn.OpenflowconnUnexpectedResponse("unexpected openflow response, "
+ "Wrong version?")
- for i in range(0,len(info)):
- if info[i][ self.ver_names["dpid"] ] == self.dpid:
+ for i in range(0, len(info)):
+ if info[i][self.ver_names["dpid"]] == self.dpid:
index = i
break
if index == -1:
- text = "DPID '"+self.dpid+"' not present in controller "+self.url
- #print self.name, ": get_of_controller_info ERROR", text
- return -1, text
+ text = "DPID '" + self.dpid + "' not present in controller " + self.url
+ # print self.name, ": get_of_controller_info ERROR", text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(text)
else:
- if self.version[0]=="0":
+ if self.version[0] == "0":
ports = info[index]["ports"]
- else: #version 1.X
- of_response = requests.get(self.url+"/wm/core/switch/%s/port-desc/json" %self.dpid, headers=self.headers)
- #print vim_response.status_code
+ else: # version 1.X
+ of_response = requests.get(self.url + "/wm/core/switch/%s/port-desc/json" % self.dpid,
+ headers=self.headers)
+ # print vim_response.status_code
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code != 200:
self.logger.warning("obtain_port_correspondence " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("obtain_port_correspondence " + error_text)
info = of_response.json()
if type(info) != dict:
- return -1, "unexpected openflow port-desc response, not a dict. Wrong version?"
+ raise openflow_conn.OpenflowconnUnexpectedResponse("unexpected openflow port-desc response, "
+ "not a dict. Wrong version?")
if "portDesc" not in info:
- return -1, "unexpected openflow port-desc response, 'portDesc' not found. Wrong version?"
+ raise openflow_conn.OpenflowconnUnexpectedResponse("unexpected openflow port-desc response, "
+ "'portDesc' not found. Wrong version?")
if type(info["portDesc"]) != list and type(info["portDesc"]) != tuple:
- return -1, "unexpected openflow port-desc response at 'portDesc', not a list. Wrong version?"
+ raise openflow_conn.OpenflowconnUnexpectedResponse("unexpected openflow port-desc response at "
+ "'portDesc', not a list. Wrong version?")
ports = info["portDesc"]
for port in ports:
- self.pp2ofi[ str(port["name"]) ] = str(port["portNumber"] )
- self.ofi2pp[ port["portNumber"]] = str(port["name"])
- #print self.name, ": get_of_controller_info ports:", self.pp2ofi
- return 0, self.pp2ofi
- except (requests.exceptions.RequestException, ValueError) as e:
- #ValueError in the case that JSON can not be decoded
+ self.pp2ofi[str(port["name"])] = str(port["portNumber"])
+ self.ofi2pp[port["portNumber"]] = str(port["name"])
+ # print self.name, ": get_of_controller_info ports:", self.pp2ofi
+ return self.pp2ofi
+ except requests.exceptions.RequestException as e:
+ error_text = type(e).__name__ + ": " + str(e)
+ self.logger.error("obtain_port_correspondence " + error_text)
+ raise openflow_conn.OpenflowconnConnectionException(error_text)
+ except ValueError as e:
+ # ValueError in the case that JSON can not be decoded
error_text = type(e).__name__ + ": " + str(e)
self.logger.error("obtain_port_correspondence " + error_text)
- return -1, error_text
-
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
+
def del_flow(self, flow_name):
- ''' Delete an existing rule
- Params: flow_name, this is the rule name
- Return
- 0, None if ok
- -1, text_error if fails
- '''
- #autodiscover version
- if self.version == None:
- r,c = self.get_of_switches()
- if r<0:
- return r,c
- elif r==0:
- return -1, "No dpid found "
+ """
+ Delete an existing rule
+ :param flow_name: this is the rule name
+ :return: None if ok
+ Raise an openflowconnUnexpectedResponse exception if fails with text_error
+ """
try:
- of_response = requests.delete(self.url+"/wm/%s/json" % self.ver_names["URLmodifier"],
- headers=self.headers, data='{"switch":"%s","name":"%s"}' %(self.dpid, flow_name)
- )
+
+ # Raise an openflowconnUnexpectedResponse exception if fails with text_error
+ # autodiscover version
+
+ if self.version == None:
+ self.get_of_switches()
+
+ of_response = requests.delete(self.url + "/wm/%s/json" % self.ver_names["URLmodifier"],
+ headers=self.headers,
+ data='{"switch":"%s","name":"%s"}' % (self.dpid, flow_name)
+ )
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code != 200:
self.logger.warning("del_flow " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("del_flow OK " + error_text)
- return 0, None
+ return None
except requests.exceptions.RequestException as e:
error_text = type(e).__name__ + ": " + str(e)
self.logger.error("del_flow " + error_text)
- return -1, error_text
+ raise openflow_conn.OpenflowconnConnectionException(error_text)
def new_flow(self, data):
- ''' Insert a new static rule
- Params: data: dictionary with the following content:
- priority: rule priority
- name: rule name
- ingress_port: match input port of the rule
- dst_mac: match destination mac address of the rule, missing or None if not apply
- vlan_id: match vlan tag of the rule, missing or None if not apply
- actions: list of actions, composed by a pair tuples with these posibilities:
- ('vlan', None/int): for stripping/setting a vlan tag
- ('out', port): send to this port
- Return
- 0, None if ok
- -1, text_error if fails
- '''
- #get translation, autodiscover version
+ """
+ Insert a new static rule
+ :param data: dictionary with the following content:
+ priority: rule priority
+ name: rule name
+ ingress_port: match input port of the rule
+ dst_mac: match destination mac address of the rule, missing or None if not apply
+ vlan_id: match vlan tag of the rule, missing or None if not apply
+ actions: list of actions, composed by a pair tuples with these posibilities:
+ ('vlan', None/int): for stripping/setting a vlan tag
+ ('out', port): send to this port
+ :return: None if ok
+ Raise an openflowconnUnexpectedResponse exception if fails with text_error
+ """
+ # get translation, autodiscover version
if len(self.pp2ofi) == 0:
- r,c = self.obtain_port_correspondence()
- if r<0:
- return r,c
+ self.obtain_port_correspondence()
+
try:
- #We have to build the data for the floodlight call from the generic data
- sdata = {'active': "true", "name":data["name"]}
+ # We have to build the data for the floodlight call from the generic data
+ sdata = {'active': "true", "name": data["name"]}
if data.get("priority"):
sdata["priority"] = str(data["priority"])
if data.get("vlan_id"):
- sdata[ self.ver_names["vlanid"] ] = data["vlan_id"]
+ sdata[self.ver_names["vlanid"]] = data["vlan_id"]
if data.get("dst_mac"):
- sdata[ self.ver_names["destmac"] ] = data["dst_mac"]
+ sdata[self.ver_names["destmac"]] = data["dst_mac"]
sdata['switch'] = self.dpid
if not data['ingress_port'] in self.pp2ofi:
- error_text = 'Error. Port '+data['ingress_port']+' is not present in the switch'
+ error_text = 'Error. Port ' + data['ingress_port'] + ' is not present in the switch'
self.logger.warning("new_flow " + error_text)
- return -1, error_text
-
- sdata[ self.ver_names["inport"] ] = self.pp2ofi[data['ingress_port']]
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
+
+ sdata[self.ver_names["inport"]] = self.pp2ofi[data['ingress_port']]
sdata['actions'] = ""
for action in data['actions']:
if len(sdata['actions']) > 0:
- sdata['actions'] += ','
+ sdata['actions'] += ','
if action[0] == "vlan":
- if action[1]==None:
+ if action[1] == None:
sdata['actions'] += self.ver_names["stripvlan"]
else:
sdata['actions'] += self.ver_names["setvlan"] + "=" + str(action[1])
elif action[0] == 'out':
- sdata['actions'] += "output=" + self.pp2ofi[ action[1] ]
-
+ sdata['actions'] += "output=" + self.pp2ofi[action[1]]
- of_response = requests.post(self.url+"/wm/%s/json" % self.ver_names["URLmodifier"],
- headers=self.headers, data=json.dumps(sdata) )
+ of_response = requests.post(self.url + "/wm/%s/json" % self.ver_names["URLmodifier"],
+ headers=self.headers, data=json.dumps(sdata))
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code != 200:
self.logger.warning("new_flow " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("new_flow OK" + error_text)
- return 0, None
+ return None
except requests.exceptions.RequestException as e:
error_text = type(e).__name__ + ": " + str(e)
self.logger.error("new_flow " + error_text)
- return -1, error_text
+ raise openflow_conn.OpenflowconnConnectionException(error_text)
def clear_all_flows(self):
- ''' Delete all existing rules
- Return:
- 0, None if ok
- -1, text_error if fails
- '''
- #autodiscover version
- if self.version == None:
- r,c = self.get_of_switches()
- if r<0:
- return r,c
- elif r==0: #empty
- return 0, None
+ """
+ Delete all existing rules
+ :return: None if ok
+ Raise an openflowconnUnexpectedResponse exception if fails with text_error
+ """
+
try:
- url = self.url+"/wm/%s/clear/%s/json" % (self.ver_names["URLmodifier"], self.dpid)
- of_response = requests.get(url )
+ # autodiscover version
+ if self.version == None:
+ sw_list = self.get_of_switches()
+ if len(sw_list) == 0: # empty
+ return None
+
+ url = self.url + "/wm/%s/clear/%s/json" % (self.ver_names["URLmodifier"], self.dpid)
+ of_response = requests.get(url)
error_text = "Openflow response %d: %s" % (of_response.status_code, of_response.text)
if of_response.status_code < 200 or of_response.status_code >= 300:
self.logger.warning("clear_all_flows " + error_text)
- return -1 , error_text
+ raise openflow_conn.OpenflowconnUnexpectedResponse(error_text)
self.logger.debug("clear_all_flows OK " + error_text)
- return 0, None
+ return None
except requests.exceptions.RequestException as e:
error_text = type(e).__name__ + ": " + str(e)
self.logger.error("clear_all_flows " + error_text)
- return -1, error_text
+ raise openflow_conn.OpenflowconnConnectionException(error_text)
+
projects / osm / openvim.git / blobdiff