def __init__(self, *args, **kwargs):
super(SimpleSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.net = nx.DiGraph()
self.nodes = {}
self.links = {}
self.topology_api_app = self
self.qos = QoSTracker()
def __init__(self, *args, **kwargs):
super(QoSSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.qos = QoSTracker(self)
self._error_count = 0
self.switches = {}
wsgi = kwargs["wsgi"]
wsgi.register(QoSController, {simple_switch_instance_name: self})
def __init__(self, *args, **kwargs):
super(QoSSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.qos = QoSTracker(self)
self._error_count = 0
self.switches = {}
wsgi = kwargs["wsgi"]
wsgi.register(QoSController, {simple_switch_instance_name : self})
class SimpleSwitch13(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
def __init__(self, *args, **kwargs):
super(SimpleSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.net = nx.DiGraph()
self.nodes = {}
self.links = {}
self.topology_api_app = self
self.qos = QoSTracker()
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
# install table-miss flow entry
#
# We specify NO BUFFER to max_len of the output action due to
# OVS bug. At this moment, if we specify a lesser number, e.g.,
# 128, OVS will send Packet-In with invalid buffer_id and
# truncated packet data. In that case, we cannot output packets
# correctly. The bug has been fixed in OVS v2.1.0.
match = parser.OFPMatch()
actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
ofproto.OFPCML_NO_BUFFER)]
self.add_flow(datapath, 0, match, actions)
def add_flow(self, datapath, priority, match, actions, buffer_id=None):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)]
if buffer_id:
mod = parser.OFPFlowMod(datapath=datapath, buffer_id=buffer_id,
priority=priority, match=match,
instructions=inst)
else:
mod = parser.OFPFlowMod(datapath=datapath, priority=priority,
match=match, instructions=inst)
datapath.send_msg(mod)
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def _packet_in_handler(self, ev):
# If you hit this you might want to increase
# the "miss_send_length" of your switch
if ev.msg.msg_len < ev.msg.total_len:
self.logger.debug("packet truncated: only %s of %s bytes",
ev.msg.msg_len, ev.msg.total_len)
msg = ev.msg
datapath = msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
in_port = msg.match['in_port']
pkt = packet.Packet(msg.data)
eth = pkt.get_protocols(ethernet.ethernet)[0]
if eth.ethertype == ether_types.ETH_TYPE_LLDP:
# ignore lldp packet
return
dst = eth.dst
src = eth.src
ip = pkt.get_protocols(ipv4.ipv4)
if len(ip) > 0:
ip_src = ip[0].src
ip_dst = ip[0].dst
else:
arp_h = pkt.get_protocols(arp.arp)
if arp_h:
ip_src = arp_h[0].dst_ip
ip_dst = arp_h[0].src_ip
dpid = datapath.id
if ip_src and ip_dst:
res = self.qos.get_reservation_for_src_dst(ip_src, ip_dst)
if res:
print "MATCH FOR: " + str(ip_src) + " -- " + str(ip_dst) + " in datapath: " + str(dpid)
self.mac_to_port.setdefault(dpid, {})
self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
# learn a mac address to avoid FLOOD next time.
self.mac_to_port[dpid][src] = in_port
print "DPID: " + str(dpid) + ": " + str(self.mac_to_port)
# DATAPATH represents a switch
if dst in self.mac_to_port[dpid]:
out_port = self.mac_to_port[dpid][dst]
else:
out_port = ofproto.OFPP_FLOOD
actions = [parser.OFPActionOutput(out_port)]
# install a flow to avoid packet_in next time
if out_port != ofproto.OFPP_FLOOD:
match = parser.OFPMatch(in_port=in_port, eth_dst=dst)
# verify if we have a valid buffer_id, if yes avoid to send both
# flow_mod & packet_out
if msg.buffer_id != ofproto.OFP_NO_BUFFER:
self.add_flow(datapath, 1, match, actions, msg.buffer_id)
return
else:
self.add_flow(datapath, 1, match, actions)
data = None
if msg.buffer_id == ofproto.OFP_NO_BUFFER:
data = msg.data
out = parser.OFPPacketOut(datapath=datapath, buffer_id=msg.buffer_id,
in_port=in_port, actions=actions, data=data)
datapath.send_msg(out)
class QoSSwitch13(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
_CONTEXTS = { "wsgi": WSGIApplication }
def __init__(self, *args, **kwargs):
super(QoSSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.qos = QoSTracker(self)
self._error_count = 0
self.switches = {}
wsgi = kwargs["wsgi"]
wsgi.register(QoSController, {simple_switch_instance_name : self})
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
# install table-miss flow entry
#
# We specify NO BUFFER to max_len of the output action due to
# OVS bug. At this moment, if we specify a lesser number, e.g.,
# 128, OVS will send Packet-In with invalid buffer_id and
# truncated packet data. In that case, we cannot output packets
# correctly. The bug has been fixed in OVS v2.1.0.
match = parser.OFPMatch()
actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
ofproto.OFPCML_NO_BUFFER)]
self.add_flow(datapath, 0, match, actions)
# Add a flow to forward from table_id:0 to table_id:1
match = parser.OFPMatch()
inst = [parser.OFPInstructionGotoTable(CIR_TABLE_ID)]
req = parser.OFPFlowMod(datapath=datapath, priority=2, match=match, instructions=inst, table_id=PIR_TABLE_ID)
datapath.send_msg(req)
match = parser.OFPMatch()
inst = [parser.OFPInstructionGotoTable(FLOW_TABLE_ID)]
req = parser.OFPFlowMod(datapath=datapath, priority=2, match=match, instructions=inst, table_id=CIR_TABLE_ID)
datapath.send_msg(req)
self.switches[datapath.id] = datapath
def add_flow(self, datapath, priority, match, actions, table_id=FLOW_TABLE_ID, buffer_id=None):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)]
print "About to add flow: dpid:" + str(datapath.id) + " match:" + str(match) + " actions:" + str(actions)
if buffer_id:
mod = parser.OFPFlowMod(datapath=datapath, buffer_id=buffer_id,
priority=priority, match=match,
instructions=inst, table_id=table_id)
else:
mod = parser.OFPFlowMod(datapath=datapath, priority=priority,
match=match, instructions=inst, table_id=table_id)
datapath.send_msg(mod)
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def _packet_in_handler(self, ev):
# If you hit this you might want to increase
# the "miss_send_length" of your switch
if ev.msg.msg_len < ev.msg.total_len:
self.logger.debug("packet truncated: only %s of %s bytes",
ev.msg.msg_len, ev.msg.total_len)
msg = ev.msg
datapath = msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
in_port = msg.match['in_port']
pkt = packet.Packet(msg.data)
eth = pkt.get_protocols(ethernet.ethernet)[0]
if eth.ethertype == ether_types.ETH_TYPE_LLDP:
# ignore lldp packet
return
dst = eth.dst
src = eth.src
dpid = datapath.id
self.mac_to_port.setdefault(dpid, {})
# self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
# # learn a mac address to avoid FLOOD next time.
# self.mac_to_port[dpid][src] = in_port
# if dst in self.mac_to_port[dpid] and dst != "ff:ff:ff:ff:ff:ff":
# return
# else:
# out_port = ofproto.OFPP_FLOOD
# # self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
# mpls_packet = pkt.get_protocols(mpls.mpls)
# if mpls_packet:
# if mpls_packet[0]:
# self.logger.info("packet in %s %s %s %s %s", dpid, src, dst, in_port, str(mpls_packet[0]))
# actions = [parser.OFPActionOutput(out_port)]
# data = None
# if msg.buffer_id == ofproto.OFP_NO_BUFFER:
# data = msg.data
# out = parser.OFPPacketOut(datapath=datapath, buffer_id=msg.buffer_id,
# in_port=in_port, actions=actions, data=data)
# datapath.send_msg(out)
# learn a mac address to avoid FLOOD next time.
self.mac_to_port[dpid][src] = in_port
if dst in self.mac_to_port[dpid]:
out_port = self.mac_to_port[dpid][dst]
else:
out_port = ofproto.OFPP_FLOOD
mpls_packet = pkt.get_protocols(mpls.mpls)
if mpls_packet:
if mpls_packet[0]:
self.logger.info("packet in %s %s %s %s %s", dpid, src, dst, in_port, str(mpls_packet[0]))
actions = [parser.OFPActionOutput(out_port)]
# install a flow to avoid packet_in next time
if out_port != ofproto.OFPP_FLOOD:
match = parser.OFPMatch(in_port=in_port, eth_dst=dst)
# verify if we have a valid buffer_id, if yes avoid to send both
# flow_mod & packet_out
if msg.buffer_id != ofproto.OFP_NO_BUFFER:
print "About to add flow: dpid:" + str(datapath.id) + " match:" + str(match) + " actions:" + str(actions)
self.add_flow(datapath, 1, match, actions, msg.buffer_id)
return
else:
self.add_flow(datapath, 1, match, actions, table_id=2)
self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
data = None
if msg.buffer_id == ofproto.OFP_NO_BUFFER:
data = msg.data
out = parser.OFPPacketOut(datapath=datapath, buffer_id=msg.buffer_id,
in_port=in_port, actions=actions, data=data)
datapath.send_msg(out)
@set_ev_cls(event.EventSwitchEnter)
def get_topology_data(self, ev):
switch_list = get_all_switch(self)
self.qos.add_switches(switch_list)
links_list = get_all_link(self)
self.qos.add_links(links_list)
@set_ev_cls(ofp_event.EventOFPErrorMsg,
[HANDSHAKE_DISPATCHER, CONFIG_DISPATCHER, MAIN_DISPATCHER])
def _handle_reply(self, ev):
msg = ev.msg
datapath = msg.datapath
self._error_count+=1
print "***** ERROR - TYPE:" + str(msg.type) + " CODE:" + str(msg.code) + "DPID:" + str(datapath.id) + " COUNT:" + str(self._error_count)
class QoSSwitch13(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
_CONTEXTS = {"wsgi": WSGIApplication}
def __init__(self, *args, **kwargs):
super(QoSSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.qos = QoSTracker(self)
self._error_count = 0
self.switches = {}
wsgi = kwargs["wsgi"]
wsgi.register(QoSController, {simple_switch_instance_name: self})
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
# install table-miss flow entry
#
# We specify NO BUFFER to max_len of the output action due to
# OVS bug. At this moment, if we specify a lesser number, e.g.,
# 128, OVS will send Packet-In with invalid buffer_id and
# truncated packet data. In that case, we cannot output packets
# correctly. The bug has been fixed in OVS v2.1.0.
match = parser.OFPMatch()
actions = [
parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
ofproto.OFPCML_NO_BUFFER)
]
self.add_flow(datapath, 0, match, actions)
# Add a flow to forward from table_id:0 to table_id:1
match = parser.OFPMatch()
inst = [parser.OFPInstructionGotoTable(CIR_TABLE_ID)]
req = parser.OFPFlowMod(datapath=datapath,
priority=2,
match=match,
instructions=inst,
table_id=PIR_TABLE_ID)
datapath.send_msg(req)
match = parser.OFPMatch()
inst = [parser.OFPInstructionGotoTable(FLOW_TABLE_ID)]
req = parser.OFPFlowMod(datapath=datapath,
priority=2,
match=match,
instructions=inst,
table_id=CIR_TABLE_ID)
datapath.send_msg(req)
self.switches[datapath.id] = datapath
def add_flow(self,
datapath,
priority,
match,
actions,
table_id=FLOW_TABLE_ID,
buffer_id=None):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
inst = [
parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS, actions)
]
print "About to add flow: dpid:" + str(
datapath.id) + " match:" + str(match) + " actions:" + str(actions)
if buffer_id:
mod = parser.OFPFlowMod(datapath=datapath,
buffer_id=buffer_id,
priority=priority,
match=match,
instructions=inst,
table_id=table_id)
else:
mod = parser.OFPFlowMod(datapath=datapath,
priority=priority,
match=match,
instructions=inst,
table_id=table_id)
datapath.send_msg(mod)
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def _packet_in_handler(self, ev):
# If you hit this you might want to increase
# the "miss_send_length" of your switch
if ev.msg.msg_len < ev.msg.total_len:
self.logger.debug("packet truncated: only %s of %s bytes",
ev.msg.msg_len, ev.msg.total_len)
msg = ev.msg
datapath = msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
in_port = msg.match['in_port']
pkt = packet.Packet(msg.data)
eth = pkt.get_protocols(ethernet.ethernet)[0]
if eth.ethertype == ether_types.ETH_TYPE_LLDP:
# ignore lldp packet
return
dst = eth.dst
src = eth.src
dpid = datapath.id
self.mac_to_port.setdefault(dpid, {})
# self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
# # learn a mac address to avoid FLOOD next time.
# self.mac_to_port[dpid][src] = in_port
# if dst in self.mac_to_port[dpid] and dst != "ff:ff:ff:ff:ff:ff":
# return
# else:
# out_port = ofproto.OFPP_FLOOD
# # self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
# mpls_packet = pkt.get_protocols(mpls.mpls)
# if mpls_packet:
# if mpls_packet[0]:
# self.logger.info("packet in %s %s %s %s %s", dpid, src, dst, in_port, str(mpls_packet[0]))
# actions = [parser.OFPActionOutput(out_port)]
# data = None
# if msg.buffer_id == ofproto.OFP_NO_BUFFER:
# data = msg.data
# out = parser.OFPPacketOut(datapath=datapath, buffer_id=msg.buffer_id,
# in_port=in_port, actions=actions, data=data)
# datapath.send_msg(out)
# learn a mac address to avoid FLOOD next time.
self.mac_to_port[dpid][src] = in_port
if dst in self.mac_to_port[dpid]:
out_port = self.mac_to_port[dpid][dst]
else:
out_port = ofproto.OFPP_FLOOD
mpls_packet = pkt.get_protocols(mpls.mpls)
if mpls_packet:
if mpls_packet[0]:
self.logger.info("packet in %s %s %s %s %s", dpid, src, dst,
in_port, str(mpls_packet[0]))
actions = [parser.OFPActionOutput(out_port)]
# install a flow to avoid packet_in next time
if out_port != ofproto.OFPP_FLOOD:
match = parser.OFPMatch(in_port=in_port, eth_dst=dst)
# verify if we have a valid buffer_id, if yes avoid to send both
# flow_mod & packet_out
if msg.buffer_id != ofproto.OFP_NO_BUFFER:
print "About to add flow: dpid:" + str(
datapath.id) + " match:" + str(match) + " actions:" + str(
actions)
self.add_flow(datapath, 1, match, actions, msg.buffer_id)
return
else:
self.add_flow(datapath, 1, match, actions, table_id=2)
self.logger.info("packet in %s %s %s %s", dpid, src, dst,
in_port)
data = None
if msg.buffer_id == ofproto.OFP_NO_BUFFER:
data = msg.data
out = parser.OFPPacketOut(datapath=datapath,
buffer_id=msg.buffer_id,
in_port=in_port,
actions=actions,
data=data)
datapath.send_msg(out)
@set_ev_cls(event.EventSwitchEnter)
def get_topology_data(self, ev):
switch_list = get_all_switch(self)
self.qos.add_switches(switch_list)
links_list = get_all_link(self)
self.qos.add_links(links_list)
@set_ev_cls(ofp_event.EventOFPErrorMsg,
[HANDSHAKE_DISPATCHER, CONFIG_DISPATCHER, MAIN_DISPATCHER])
def _handle_reply(self, ev):
msg = ev.msg
datapath = msg.datapath
self._error_count += 1
print "***** ERROR - TYPE:" + str(msg.type) + " CODE:" + str(
msg.code) + "DPID:" + str(datapath.id) + " COUNT:" + str(
self._error_count)