def __init__(self, *args, **kwargs):
super(ResourceTracker, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.dpset = kwargs['dpset']
self.datapaths = {}
# create thread for traffic monitoring
# self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.dpid_datapathObj = {}
self.ssh_learning = {}
self.ssh_track_list = {}
self.util = Utilites()
def __init__(self, *args, **kwargs):
super(ICMPTrafficController, self).__init__(*args, **kwargs)
self.datapaths = {}
self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.sleep = 10
# length of saved dictionary value
self.state_len = 3
self.icmp_stats = {}
self.iperf_stats = {}
self.traffic_checked_list = []
self.util = Utilites()
self.dpid_datapathObj = {}
def __init__(self, *args, **kwargs):
super(ResourceScheduler, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.dpset = kwargs['dpset']
self.datapaths = {}
# create thread for traffic monitoring
# self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.dpid_datapathObj = {}
self.ssh_learning = {}
self.ssh_track_list = {}
self.util = Utilites()
def __init__(self, *args, **kwargs):
super(SimpleSwitch13, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.dpset = kwargs['dpset']
self.datapaths = {}
# create thread for traffic monitoring
self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.net = nx.DiGraph()
self.nodes = {}
self.links = {}
self.no_of_nodes = 0
self.no_of_links = 0
self.topology_data_app = self
# port number between two OVS
self.link_port = {}
# save OVS datapath Object for later reference
self.dpid_datapathObj = {}
self.icmp_count = 0
self.icmp_track_list = {}
self.icmp_path_list = {}
self.util = Utilites()
class ResourceTracker(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
_CONTEXTS = {
'dpset': dpset.DPSet,
}
def __init__(self, *args, **kwargs):
super(ResourceTracker, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.dpset = kwargs['dpset']
self.datapaths = {}
# create thread for traffic monitoring
# self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.dpid_datapathObj = {}
self.ssh_learning = {}
self.ssh_track_list = {}
self.util = Utilites()
# self._update_switch_dpid_list()
###################################################################
# ofp_event.EventOFPSwitchFeatures
####################################################################
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
# self._update_switch_dpid_list()
self.logger.debug("switch_features_handler: ")
datapath = ev.msg.datapath
dpid = datapath.id
# save datapath object into dpid_datapath
# here dpid is a integer, not Hex number
self.dpid_datapathObj[dpid] = ev.msg.datapath
###################################################################
# EventOFPPacketIn handler
####################################################################
@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
pkt = packet.Packet(data=msg.data)
pkt_ethernet = pkt.get_protocol(ethernet.ethernet)
eth = pkt.get_protocols(ethernet.ethernet)[0]
dst_mac = eth.dst
if dst_mac == LLDP_MAC_NEAREST_BRIDGE:
return
if not pkt_ethernet:
return
else:
pass
self.logger.debug("ResourceTracker: Packet-In:")
# self.logger.info("\tether_packet: at %s %s " % (self.util.hostname_Check(datapath.id), pkt_ethernet))
pkt_arp = pkt.get_protocol(arp.arp)
if pkt_arp:
return
pkt_tcp = pkt.get_protocol(tcp.tcp)
# pkt_udp = pkt.get_protocol(udp.udp)
if pkt_tcp:
# self.logger.info("\tTCP_packet: at %s %s " % (self.util.hostname_Check(datapath.id), pkt_tcp))
pkt_ipv4 = pkt.get_protocol(ipv4.ipv4)
src_ip = pkt_ipv4.src
dst_ip = pkt_ipv4.dst
in_port = msg.match['in_port']
src_mac = eth.src
# parser = datapath.ofproto_parser
if pkt_tcp:
src_port = pkt_tcp.src_port
dst_port = pkt_tcp.dst_port
if str(dst_port) == '8031' or str(dst_port) == '50010':
key = (src_ip, dst_ip, src_mac, dst_mac, dst_port)
self.logger.debug("ResourceTracker: Packet-In:")
self.logger.info(
"\t############################# Resource_tracker Traffic #####################################"
)
self.logger.info(
"\tAt %s from %s to %s from src_port %s to dst_port %s from port %s src_mac %s dst_mac %s"
% (self.util.hostname_Check(datapath.id), src_ip, dst_ip,
src_port, dst_port, in_port, src_mac, dst_mac))
if key not in self.ssh_learning.keys():
# self.logger.info("\t############################# HDFS Traffic #####################################")
# self.logger.info("\tAt %s from %s to %s from src_port %s to dst_port %s from port %s src_mac %s dst_mac %s" %
# (self.util.hostname_Check(datapath.id), src_ip, dst_ip, src_port, dst_port, in_port, src_mac, dst_mac))
# this valuw will be used at a timer, This entry will be cleard after 1 second
value = time.time()
self.ssh_learning[key] = value
elif key in self.ssh_learning.keys():
if time.time(
) - self.ssh_learning[key] >= SSH_KEY_LEARNING_TIMER:
self.logger.info(
"\t(src_ip, dst_ip, src_mac, dst_mac, dst_port, in_port) TIMEOUT from self.hdfs_learning dict!!!"
)
del self.ssh_learning[key]
self.ssh_learning[key] = time.time()
else:
return
else:
return
src_dpid_name = self.util.hostname_Check(datapath.id)
# self.logger.info("\tInstall SSH flow between IP address %s and %s \n\tsleeping for 5 s ........................" % (src_ip, dst_ip))
# time.sleep(5)
# find dstination datapath id from host_tracker file
dst_dpid_name = self.util.return_dst_dpid_hostname(
dst_ip, dst_mac)
if dst_dpid_name == None:
self.logger.info(
"\tcould not find destination switch..............")
return
self.logger.info(
"\tInstall Resource_tracker flow between %s and %s" %
(dst_dpid_name, src_dpid_name))
# Now only consider two end hosts
# hosts = [src_mac, dst_mac]
hosts = [dst_mac, src_mac]
# find shortest path between two switches, a list of hostnames ['s1','s2','s3']
shortest_path = self.util.return_shortest_path(
dst_dpid_name, src_dpid_name)
# install flows between hosts and switch
# self.install_flows_for_hosts_and_attached_switches(hosts, shortest_path, src_ip, dst_ip, src_port, dst_port, src_mac, dst_mac, msg)
if len(shortest_path) == 1:
self.util.install_flows_for_same_switch_v2(
shortest_path, 'TCP', src_ip, dst_ip, src_mac, dst_mac,
src_port, dst_port, self.dpid_datapathObj,
RESOURCE_TRACKER_IDLE_TIMER,
RESOURCE_TRACKER_HARD_TIMER, msg)
else:
# install flows between hosts and switch
self.install_flows_for_hosts_and_attached_switches(
hosts, shortest_path, src_ip, dst_ip, src_port,
dst_port, src_mac, dst_mac, msg)
# install flow for the rest of switches if the length of shortest path is greater than 2
if len(shortest_path) > 2:
# self.util.install_flows_for_rest_of_switches(
# shortest_path, 'TCP', SSH_PRIORITY, src_ip, dst_ip, src_mac, dst_mac, self.dpid_datapathObj, SSH_IDLE_TIMER, SSH_HARD_TIMER)
self.util.install_flows_for_rest_of_switches(
shortest_path, 'TCP', HDFS_PRIORITY, dst_ip, src_ip,
dst_mac, src_mac, self.dpid_datapathObj,
SSH_IDLE_TIMER, SSH_HARD_TIMER)
def install_flows_for_hosts_and_attached_switches(self, hosts,
shortest_path, src_ip,
dst_ip, src_port,
dst_port, src_mac,
dst_mac, msg):
count = 0
for h_mac in hosts:
if count < len(hosts) and count == 0:
self.util.install_flow_between_host_and_switch_for_TCP_UDP(
h_mac, 'TCP', RESOURCE_TRACKER_PRIORITY,
shortest_path[count:count + 2], count, dst_ip, src_ip,
dst_port, src_port, dst_mac, src_mac,
self.dpid_datapathObj, SSH_IDLE_TIMER, SSH_HARD_TIMER, msg)
count += 1
elif count < len(hosts) and count == 1:
self.util.install_flow_between_host_and_switch_for_TCP_UDP(
h_mac, 'TCP', RESOURCE_TRACKER_PRIORITY,
list([
shortest_path[len(shortest_path) - 1],
shortest_path[len(shortest_path) - 2]
]), count, dst_ip, src_ip, dst_port, src_port, dst_mac,
src_mac, self.dpid_datapathObj, SSH_IDLE_TIMER,
SSH_HARD_TIMER, msg)
count += 1
class ResourceScheduler(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
_CONTEXTS = {
'dpset': dpset.DPSet,
}
def __init__(self, *args, **kwargs):
super(ResourceScheduler, self).__init__(*args, **kwargs)
self.mac_to_port = {}
self.dpset = kwargs['dpset']
self.datapaths = {}
# create thread for traffic monitoring
# self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.dpid_datapathObj = {}
self.ssh_learning = {}
self.ssh_track_list = {}
self.util = Utilites()
# self._update_switch_dpid_list()
###################################################################
# ofp_event.EventOFPSwitchFeatures
####################################################################
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
# self._update_switch_dpid_list()
self.logger.debug("switch_features_handler: ")
datapath = ev.msg.datapath
dpid = datapath.id
# save datapath object into dpid_datapath
# here dpid is a integer, not Hex number
self.dpid_datapathObj[dpid] = ev.msg.datapath
###################################################################
# EventOFPPacketIn handler
####################################################################
@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
pkt = packet.Packet(data=msg.data)
pkt_ethernet = pkt.get_protocol(ethernet.ethernet)
eth = pkt.get_protocols(ethernet.ethernet)[0]
dst_mac = eth.dst
if dst_mac == LLDP_MAC_NEAREST_BRIDGE:
return
if not pkt_ethernet:
return
else:
pass
self.logger.debug("ResourceScheduler: Packet-In:")
# self.logger.info("\tether_packet: at %s %s " % (self.util.hostname_Check(datapath.id), pkt_ethernet))
pkt_arp = pkt.get_protocol(arp.arp)
if pkt_arp:
return
pkt_tcp = pkt.get_protocol(tcp.tcp)
# pkt_udp = pkt.get_protocol(udp.udp)
if pkt_tcp:
# self.logger.info("\tTCP_packet: at %s %s " % (self.util.hostname_Check(datapath.id), pkt_tcp))
pkt_ipv4 = pkt.get_protocol(ipv4.ipv4)
src_ip = pkt_ipv4.src
dst_ip = pkt_ipv4.dst
in_port = msg.match['in_port']
src_mac = eth.src
# parser = datapath.ofproto_parser
if pkt_tcp:
src_port = pkt_tcp.src_port
dst_port = pkt_tcp.dst_port
if str(dst_port) == '8030' or str(dst_port) == '54311':
key = (src_ip, dst_ip, src_mac, dst_mac, dst_port)
self.logger.debug("ResourceScheduler: Packet-In:")
self.logger.info("\t############################# Resource_Scheduler Traffic #####################################")
self.logger.info("\tAt %s from %s to %s from src_port %s to dst_port %s from port %s src_mac %s dst_mac %s" %
(self.util.hostname_Check(datapath.id), src_ip, dst_ip, src_port, dst_port, in_port, src_mac, dst_mac))
if key not in self.ssh_learning.keys():
# self.logger.info("\t############################# HDFS Traffic #####################################")
# self.logger.info("\tAt %s from %s to %s from src_port %s to dst_port %s from port %s src_mac %s dst_mac %s" %
# (self.util.hostname_Check(datapath.id), src_ip, dst_ip, src_port, dst_port, in_port, src_mac, dst_mac))
# this valuw will be used at a timer, This entry will be cleard after 1 second
value = time.time()
self.ssh_learning[key] = value
elif key in self.ssh_learning.keys():
if time.time() - self.ssh_learning[key] >= SSH_KEY_LEARNING_TIMER:
self.logger.info("\t(src_ip, dst_ip, src_mac, dst_mac, dst_port, in_port) TIMEOUT from self.hdfs_learning dict!!!")
del self.ssh_learning[key]
self.ssh_learning[key] = time.time()
else:
return
else:
return
src_dpid_name = self.util.hostname_Check(datapath.id)
# self.logger.info("\tInstall SSH flow between IP address %s and %s \n\tsleeping for 5 s ........................" % (src_ip, dst_ip))
# time.sleep(5)
# find dstination datapath id from host_tracker file
dst_dpid_name = self.util.return_dst_dpid_hostname(dst_ip, dst_mac)
if dst_dpid_name == None:
self.logger.info("\tcould not find destination switch..............")
return
self.logger.info("\tInstall Resource_tracker flow between %s and %s" % (dst_dpid_name, src_dpid_name))
# Now only consider two end hosts
# hosts = [src_mac, dst_mac]
hosts = [dst_mac, src_mac]
# find shortest path between two switches, a list of hostnames ['s1','s2','s3']
shortest_path = self.util.return_shortest_path(dst_dpid_name, src_dpid_name)
# install flows between hosts and switch
# self.install_flows_for_hosts_and_attached_switches(hosts, shortest_path, src_ip, dst_ip, src_port, dst_port, src_mac, dst_mac, msg)
if len(shortest_path) == 1:
self.util.install_flows_for_same_switch_v2(
shortest_path, 'TCP', src_ip, dst_ip, src_mac, dst_mac,
src_port, dst_port, self.dpid_datapathObj, RESOURCE_TRACKER_IDLE_TIMER, RESOURCE_TRACKER_HARD_TIMER, msg)
else:
# install flows between hosts and switch
self.install_flows_for_hosts_and_attached_switches(hosts, shortest_path, src_ip, dst_ip, src_port, dst_port, src_mac, dst_mac, msg)
# install flow for the rest of switches if the length of shortest path is greater than 2
if len(shortest_path) > 2:
# self.util.install_flows_for_rest_of_switches(
# shortest_path, 'TCP', SSH_PRIORITY, src_ip, dst_ip, src_mac, dst_mac, self.dpid_datapathObj, SSH_IDLE_TIMER, SSH_HARD_TIMER)
self.util.install_flows_for_rest_of_switches(
shortest_path, 'TCP', HDFS_PRIORITY, dst_ip, src_ip, dst_mac, src_mac, self.dpid_datapathObj, SSH_IDLE_TIMER, SSH_HARD_TIMER)
def install_flows_for_hosts_and_attached_switches(self, hosts, shortest_path, src_ip, dst_ip, src_port, dst_port, src_mac, dst_mac, msg):
count = 0
for h_mac in hosts:
if count < len(hosts) and count == 0:
self.util.install_flow_between_host_and_switch_for_TCP_UDP(
h_mac, 'TCP', RESOURCE_TRACKER_PRIORITY, shortest_path[count:count + 2],
count, dst_ip, src_ip, dst_port, src_port, dst_mac, src_mac, self.dpid_datapathObj, SSH_IDLE_TIMER, SSH_HARD_TIMER, msg)
count += 1
elif count < len(hosts) and count == 1:
self.util.install_flow_between_host_and_switch_for_TCP_UDP(
h_mac, 'TCP', RESOURCE_TRACKER_PRIORITY, list([shortest_path[len(shortest_path) - 1], shortest_path[len(shortest_path) - 2]]),
count, dst_ip, src_ip, dst_port, src_port, dst_mac, src_mac, self.dpid_datapathObj, SSH_IDLE_TIMER, SSH_HARD_TIMER, msg)
count += 1
class ICMPTrafficController(app_manager.RyuApp):
def __init__(self, *args, **kwargs):
super(ICMPTrafficController, self).__init__(*args, **kwargs)
self.datapaths = {}
self.monitor_thread = hub.spawn(self._monitor)
self.hostname_list = {}
self.sleep = 10
# length of saved dictionary value
self.state_len = 3
self.icmp_stats = {}
self.iperf_stats = {}
self.traffic_checked_list = []
self.util = Utilites()
self.dpid_datapathObj = {}
###################################################################
# ofp_event.EventOFPSwitchFeatures
####################################################################
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
# self._update_switch_dpid_list()
self.logger.debug("switch_features_handler: ")
msg = ev.msg
datapath = ev.msg.datapath
dpid = datapath.id
# save datapath object into dpid_datapath
# here dpid is a integer, not Hex number
self.dpid_datapathObj[dpid] = ev.msg.datapath
# print self.dpid_datapathObj
# ofproto = datapath.ofproto
# parser = datapath.ofproto_parser
# self.logger.debug(
# " datapath in decimal %s,in hex %s",
# datapath.id, hex(int(datapath.id)))
# self.logger.debug(' OFPSwitchFeatures received: '
# 'datapath_id=0x%016x n_buffers=%d '
# 'n_tables=%d auxiliary_id=%d '
# 'capabilities=0x%08x',
# msg.datapath_id, msg.n_buffers, msg.n_tables,
# msg.auxiliary_id, msg.capabilities)
def _monitor(self):
while True:
self._request_stats()
hub.sleep(STATS_UPDATE_TIMER)
def _hostname_Check(self, datapath):
# Given decimal datapath ID, return hostname
if os.path.exists(os.path.abspath(OFP_SWITCHES_LIST_PREVIOUS)):
f = os.path.abspath(OFP_SWITCHES_LIST_PREVIOUS)
else:
f = os.path.abspath(OFP_SWITCHES_LIST)
with open(f, 'r') as iff:
for line in iff:
hostname, dpid = line.split()
self.hostname_list[int(dpid, 16)] = hostname
# print self.hostname_list
# NEED add some datapath check later
if datapath not in self.hostname_list.keys():
return datapath
else:
return self.hostname_list[datapath]
def _request_stats(self):
self.logger.debug("icmpTrafficController: ")
if(not os.path.exists(OFP_ICMP_LOG)):
icmp_detail = ""
icmp_path = []
else:
with open(OFP_ICMP_LOG, 'r') as inp:
for line in inp:
# self.logger.debug("\t%s %s" % (line.strip(), type(line)))
icmp_path = line.split()[2:-1]
icmp_detail = line
self.logger.debug("\tICMP %s" % (icmp_path))
if(not os.path.exists(OFP_IPERF_LOG)):
iperf_detail = ""
iperf_path = []
else:
with open(OFP_IPERF_LOG, 'r') as inp:
for line in inp:
iperf_detail = line
# self.logger.debug("\t%s %s" % (line.strip(), type(line)))
iperf_path = line.split()[6:]
self.logger.debug("\tIPERF %s" % (iperf_path))
# self.traffic_checked_list only save one icmp traffic and iperf traffic,
# icmp/iperf detailed get update for every different ping/iperf_client
if icmp_path and iperf_path:
if len(self.traffic_checked_list) == 0:
self.traffic_checked_list.insert(0, icmp_detail)
self.traffic_checked_list.insert(1, iperf_detail)
if self.check_if_path_overlape(icmp_path, iperf_path):
self.logger.debug("\t1. Path OVerlap, Now check if Iperf traffic is over 50Mbits/s~~~~~~~~~~~~~~~~~~~~~~~")
if self.check_iperf_traffic_on_path(iperf_path) > 50:
self.logger.debug("\t1. Install new flows for ICMP traffic from %s to %s" % (icmp_path[0], icmp_path[-1]))
if self.check_if_icmp_traffic_on(icmp_path):
self.icmp_reroute(icmp_path, icmp_detail)
return
elif(icmp_detail not in self.traffic_checked_list):
self.traffic_checked_list.pop(0)
self.traffic_checked_list.insert(0, icmp_detail)
if self.check_if_path_overlape(icmp_path, iperf_path):
self.logger.debug("\t2. Path OVerlap, Now check if Iperf traffic is over 50Mbits/s~~~~~~~~~~~~~~~~~~~~~~~")
if self.check_iperf_traffic_on_path(iperf_path) > 50:
self.logger.debug("\t2. Install new flows for ICMP traffic from %s to %s" % (icmp_path[0], icmp_path[-1]))
if self.check_if_icmp_traffic_on(icmp_path):
self.icmp_reroute(icmp_path, icmp_detail)
return
elif(iperf_detail not in self.traffic_checked_list):
self.traffic_checked_list.pop(1)
self.traffic_checked_list.insert(1, iperf_detail)
if self.check_if_path_overlape(icmp_path, iperf_path):
self.logger.debug("\t3. Path OVerlap, Now check if Iperf traffic is over 50Mbits/s~~~~~~~~~~~~~~~~~~~~~~~")
if self.check_iperf_traffic_on_path(iperf_path) > 50:
self.logger.debug("\t3. Install new flows for ICMP traffic from %s to %s" % (icmp_path[0], icmp_path[-1]))
if self.check_if_icmp_traffic_on(icmp_path):
self.icmp_reroute(icmp_path, icmp_detail)
return
# icmp and iperf happens at the same time
def icmp_reroute(self, icmp_path, icmp_detail):
self.logger.debug("ICMPTrafficController:")
# find the current icmp_path flows
# based on recored icmp packge information, find a new path which is different from the currernt one, install new flows, delete all the flows
icmp_info = icmp_detail.split()[-1]
src_mac, dst_mac, src_ip, dst_ip = icmp_info.split('-')[1], icmp_info.split('-')[2],\
icmp_info.split('-')[3], icmp_info.split('-')[4]
self.logger.debug("\tFinding the second shortest path for %s %s %s %s %s" % (icmp_path[0], src_mac, dst_mac, src_ip, dst_ip))
src_dpid_name = icmp_path[0]
dst_dpid_name = icmp_path[-1]
all_shortest_path = self.util.return_all_shortest_paths(src_dpid_name, dst_dpid_name)
self.logger.debug("\tAll all_shortest_path: %s", all_shortest_path)
for path in all_shortest_path:
if icmp_path != path:
second_new_path = path
self.logger.debug("\tFound the second new path %s" % second_new_path)
hosts = [src_mac, dst_mac]
# install flows bettween host and switches
self.install_flows_for_hosts_and_attached_switches(hosts, second_new_path, src_ip, dst_ip, src_mac, dst_mac)
# install flow for the rest of switches
if len(second_new_path) > 2:
self.util.install_flows_for_rest_of_switches(
second_new_path, 'ICMP', ICMP_PRIORITY, src_ip, dst_ip, src_mac, dst_mac, self.dpid_datapathObj, ICMP_IDLE_TIMER, HARD_TIMER)
# write to the icmp rereoute log
with open(OFP_ICMP_REROUTE_LOG, 'w') as inp:
inp.write("%s %s %s" % (src_mac, dst_mac, second_new_path))
# delete previous flows
self.logger.debug("delete old icmp flows along the prevous path")
for node in icmp_path:
self.logger.debug("\tDelete Flows From %s" % node)
# match = parser.OFPMatch(in_port=in_port, eth_src=src, eth_dst=dst, eth_type=0x0800, ipv4_src=src_ip,
# ipv4_dst=dst_ip, ip_proto=1)
previous_flows = self.util.return_flows_info_based_on_switch_name(node, 'ICMP', ICMP_PRIORITY)
self.logger.debug("\t previous_flows details %s" % previous_flows)
node_dpid = self.util.return_decimalDPID_baseON_swithName(node)
node_datapath_obj = self.dpid_datapathObj[int(node_dpid)]
for each_path in previous_flows:
# in_port, src_mac, dst_mac, ip_proto, idle_timeout, src_ip, dst_ip, output_port, priorit
# ['2', '02:26:11:36:df:68', '02:39:2f:fa:2f:a9', '1', '60', '192.168.1.9', '192.168.1.21', '3', '3']
match = node_datapath_obj.ofproto_parser.OFPMatch(in_port=int(each_path[0]), eth_src=each_path[1], eth_dst=each_path[2], eth_type=0x0800, ipv4_src=each_path[5],
ipv4_dst=each_path[6], ip_proto=1)
actions = [node_datapath_obj.ofproto_parser.OFPActionOutput(int(each_path[7]))]
self.util.del_flow(node_datapath_obj, ICMP_PRIORITY, match, actions, ICMP_IDLE_TIMER, HARD_TIMER, int(each_path[7]))
self.logger.debug("\tDeleted at %s %s %s %s %s %s %s" % (node, each_path[0], each_path[1], each_path[2], each_path[5], each_path[6], each_path[7]))
def install_flows_for_hosts_and_attached_switches(self, hosts, shortest_path, src_ip, dst_ip, src_mac, dst_mac):
count = 0
for h_mac in hosts:
if count < len(hosts) and count == 0:
self.util.install_flow_between_host_and_switch_for_ICMP(
h_mac, 'ICMP', shortest_path[count:count + 2], count, src_ip, dst_ip, src_mac, dst_mac, self.dpid_datapathObj)
count += 1
elif count < len(hosts) and count == 1:
self.util.install_flow_between_host_and_switch_for_ICMP(
h_mac, 'ICMP', list([shortest_path[len(shortest_path) - 1], shortest_path[len(shortest_path) - 2]]),
count, src_ip, dst_ip, src_mac, dst_mac, self.dpid_datapathObj)
count += 1
def check_if_path_overlape(self, path1, path2):
# return True is one of them is subset of another one
# path1 and path2 are lists
# path1 ('02:26:11:36:df:68', '02:39:2f:fa:2f:a9') s1 s5 s4
# path2 ('02:63:ff:a5:b1:0f', '02:a5:6e:49:09:5d', '192.168.1.25', '192.168.1.8', 47409, 5001) s5 s1
path1_set = set(path1)
path2_set = set(path2)
if path1_set.issubset(path2_set) or path2_set.issubset(path1_set):
return True
def check_iperf_traffic_on_path(self, iperf_path):
# given a iperf path, return the size of the flow traffic on this path
bandwidth_usage = 100 # for now we assume it always bigger than 100
time.sleep(1)
return bandwidth_usage
def check_if_icmp_traffic_on(self, path1):
# at this point, we assume icmp is always on
return True