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})
Ejemplo n.º 3
0
 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)
Ejemplo n.º 5
0
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)