def launch (forwarding = "eco"):
import pox.log.color
pox.log.color.launch()
import pox.log
pox.log.launch(format="[@@@bold@@@level%(name)-22s@@@reset] " +
"@@@bold%(message)s@@@normal")
from pox.core import core
#import pox.openflow.discovery
#import eco_flow_table
#eco_flow_table.launch()
import eco_discovery
eco_discovery.launch()
core.getLogger("openflow.spanning_tree").setLevel("INFO")
if forwarding.lower() == "l3":
import pox.forwarding.l3_learning as fw
elif forwarding.lower() == "l2_multi":
import pox.forwarding.l2_multi as fw
elif forwarding.lower() == "l2_learning":
import pox.forwarding.l2_learning as fw
elif forwarding.lower() == "static":
import static_topology as fw
else:
import eco_topology as fw
core.getLogger().debug("Using forwarding: %s", fw.__name__)
fw.launch()
import pox.openflow.spanning_tree
pox.openflow.spanning_tree.launch()
def setup ():
""" Set up GUI """
global unblocked_list, blocked_list
top = Toplevel()
top.title("MAC Blocker")
# Shut down POX when window is closed
top.protocol("WM_DELETE_WINDOW", core.quit)
box1 = Frame(top)
box2 = Frame(top)
l1 = Label(box1, text="Allowed")
l2 = Label(box2, text="Blocked")
unblocked_list = Listbox(box1)
blocked_list = Listbox(box2)
l1.pack()
l2.pack()
unblocked_list.pack(expand=True,fill=BOTH)
blocked_list.pack(expand=True,fill=BOTH)
buttons = Frame(top)
block_button = Button(buttons, text="Block >>", command=do_block)
unblock_button = Button(buttons, text="<< Unblock", command=do_unblock)
block_button.pack()
unblock_button.pack()
opts = {"side":LEFT,"fill":BOTH,"expand":True}
box1.pack(**opts)
buttons.pack(**{"side":LEFT})
box2.pack(**opts)
core.getLogger().debug("Ready")
def launch (__INSTANCE__=None, **kw):
"""
Allows configuring log levels from the commandline.
For example, to turn off the verbose web logging, try:
pox.py web.webcore log.level --web.webcore=INFO
"""
for k,v in kw.iteritems():
if v is True:
# This means they did something like log.level --DEBUG
v = k
k = "" # Root logger
try:
v = int(v)
except:
old = v
v = logging.DEBUG
def dofail ():
core.getLogger(k).error("Bad log level: %s. Defaulting to DEBUG.", old)
if (len(old) == 0) or (len(old.strip(string.ascii_uppercase)) != 0):
dofail()
else:
vv = getattr(logging, old, None)
if not isinstance(vv, int):
dofail()
else:
v = vv
core.getLogger(k).setLevel(v)
def launch():
#clear some unimportant message
core.getLogger("packet").setLevel(logging.ERROR)
core.registerNew(Discovery,explicit_drop=False,install_flow = False)
core.registerNew(Link_Learning)
#update flow
Timer(120,Install_All_Flow,recurring=True,args=["All Path------------------"])
def launch(**kw):
"""
Allows configuring log levels from the commandline.
For example, to turn off the verbose web logging, try:
pox.py web.webcore log.level --web.webcore=INFO
"""
for k, v in kw.iteritems():
core.getLogger(k).setLevel(v)
def block_handler (event):
#Handles packet event and kills the ones with a blocked port number
tcpp = event.parsed.find('tcp')
if not tcpp: return # Not TCP
if tcpp.srcport in block_ports or tcpp.dstport in block_ports:
#Halt the event, stopping l2_learning from seeing it
#(and installing a table entry for it)
core.getLogger("blocker").debug("Blocked TCP %s <-> %s",
tcpp.srcport, tcpp.dstport)
event.halt = True
def launch (__INSTANCE__=None, **kw):
"""
Allows configuring log levels from the commandline.
For example, to turn off the verbose web logging, try:
pox.py web.webcore log.level --web.webcore=INFO
"""
for k,v in kw.iteritems():
if v is True:
# This means they did something like log.level --DEBUG
v = k
k = "" # Root logger
core.getLogger(k).setLevel(v)
def launch (debug = False):
core.registerNew(topo_addressing)
from proto.arp_helper import launch
launch(eat_packets=False)
if not debug:
core.getLogger("proto.arp_helper").setLevel(99)
signal.signal(signal.SIGALRM, refresh_all_table)
# emit SIGALRM after 5 secs
signal.setitimer(signal.ITIMER_REAL, 60)
def check_for_overlapping_entry(self, in_entry):
# FELIPE TOMM - TCC
# Esta funcao verifica se ja existe uma flow identica.
# Sera essa minha funcao base?
log = core.getLogger()
log.debug("Debug TCC - Flow Table: Iniciando analise de conflito")
"""
Tests if the input entry overlaps with another entry in this table.
Returns true if there is an overlap, false otherwise. Since the table is
sorted, there is only a need to check a certain portion of it.
"""
# NOTE: Assumes that entries are sorted by decreasing effective_priority
# NOTE: Ambiguous whether matching should be based on effective_priority
# or the regular priority. Doing it based on effective_priority
# since that's what actually affects packet matching.
# NOTE: We could improve performance by doing a binary search to find the
# right priority entries.
priority = in_entry.effective_priority
for e in self._table:
if e.effective_priority < priority:
break
elif e.effective_priority > priority:
continue
else:
if e.is_matched_by(in_entry.match) or in_entry.is_matched_by(e.match):
print("Debug TCC - Flow Table: O Flow: ja existe.")
return True
return False
def __init__ (self, switch=None, **kw):
self.switch = switch
self.connection = None
from pox.core import core
self.log = core.getLogger("dp." + dpid_to_str(self.switch.dpid))
super(OpenFlowWorker, self).__init__(switch=switch,**kw)
self._info("Disconnected")
def launch (port=6633, address="0.0.0.0", name=None,
private_key=None, certificate=None, ca_cert=None,
__INSTANCE__=None):
"""
Start a listener for OpenFlow connections
If you want to enable SSL, pass private_key/certificate/ca_cert in reasonable
combinations and pointing to reasonable key/cert files. These have the same
meanings as with Open vSwitch's old test controller, but they are more
flexible (e.g., ca-cert can be skipped).
"""
if name is None:
basename = "of_01"
counter = 1
name = basename
while core.hasComponent(name):
counter += 1
name = "%s-%s" % (basename, counter)
if core.hasComponent(name):
log.warn("of_01 '%s' already started", name)
return None
global deferredSender
if not deferredSender:
deferredSender = DeferredSender()
if of._logger is None:
of._logger = core.getLogger('libopenflow_01')
l = OpenFlow_01_Task(port = int(port), address = address,
ssl_key = private_key, ssl_cert = certificate,
ssl_ca_cert = ca_cert)
core.register(name, l)
return l
def __init__ (self,connection,name):
self.log = core.getLogger("LearningSwitch(%s)" % name)
# Switch we'll be adding L2 learning switch capabilities to
self.connection= connection
self.listenTo(connection)
self.mactable = {}
def __init__(self, name):
"""
Note that server may be a direct reference to the NomServer (for simulation), or a Pyro4 proxy
(for emulation)
pre: name is unique across the network
"""
EventMixin.__init__(self)
# We are a "controller" entity in pox.topology.
# (Actually injecting ourself into pox.topology is handled
# by nom_server)
topology.Controller.__init__(self, name)
self.name = name
self.log = core.getLogger(name)
# Construct an empty topology
# The "master" copy topology will soon be merged into this guy
self.topology = topology.Topology("topo:%s" % self.name)
# Register subclass' event handlers
self.listenTo(self.topology, "topology")
self._server_connection = None
self._queued_commits = []
# For simulation. can't connect to NomServer until the Messenger is listening to new connections
# TODO: for emulation, this should be removed / refactored --
# just assume that the NomServer machine is up
core.messenger.addListener(messenger.MessengerListening, self._register_with_server)
def __init__(self, switch=None, **kw):
self.switch = switch
self.connection = None
from pox.core import core
self.log = core.getLogger("dp." + dpid_to_str(self.switch.dpid))
super(OpenFlowWorker, self).__init__(switch=switch, **kw)
self._info("Connecting to %s:%s", kw.get('addr'), kw.get('port'))
def _handle_ConnectionUp (event):
if dpid_to_str(event.dpid) == "00-00-00-00-00-01":
core.getLogger().info("Connection %s" % (event.connection,))
Firewall(event.connection, False)
elif dpid_to_str(event.dpid) == "00-00-00-00-00-02":
core.getLogger().info("Connection %s" % (event.connection,))
Firewall(event.connection, False)
elif dpid_to_str(event.dpid) == "00-00-00-00-00-05":
core.getLogger().info("Connection %s" % (event.connection,))
LearningSwitch(event.connection, False)
elif dpid_to_str(event.dpid) == "00-00-00-00-00-03":
core.getLogger().info("Connection %s" % (event.connection,))
LearningSwitch(event.connection, False)
#LoadBalancer(event.connection)
elif dpid_to_str(event.dpid) == "00-00-00-00-00-04":
core.getLogger().info("Connection %s" % (event.connection,))
LearningSwitch(event.connection, False)
def __init__(self,net_id=0x0):
self.log = core.getLogger()
core.openflow.miss_send_len = 1400
core.openflow.addListeners(self)
self.log.info("SecondTest initialization")
self.switches = dict()
self.connections = set()
self.net_id = net_id
def __init__(self, connection_up_event):
if not hasattr(self, '_log'):
self._log = core.getLogger('OpenFlowSwitch %s' % connection_up_event.dpid)
self._dpid = connection_up_event.dpid
self._connection = connection_up_event.connection
self._ports = connection_up_event.ofp.ports # Save the list of physical ports of the switch.
self._flow_table = [] # Initialize the inner flow table for the learning switch.
self._stats_req_timer = None
def _process_commands (msg):
"""
Processes logger commands
"""
def get (key):
r = msg.get(key)
if r is not None:
if not isinstance(r, dict):
r = {None:r}
else:
return {}
return r
lowerLevels = get("lowerLevels") # less verbose
raiseLevels = get("raiseLevels") # more verbose
setLevels = get("setLevels")
for k,v in lowerLevels.iteritems():
logger = core.getLogger(k)
level = logging._checkLevel(v)
if not l.isEnabledFor(level+1):
logger.setLevel(v)
for k,v in raiseLevels.iteritems():
logger = core.getLogger(k)
if not l.isEnabledFor(v):
logger.setLevel(v)
for k,v in setLevels.iteritems():
logger = core.getLogger(k)
logger.setLevel(v)
message = msg.get("message", None)
if message:
level = msg.get("level", "DEBUG")
if isinstance(level, basestring):
import logging
if not level.isalpha():
level = logging.DEBUG
else:
level = level.upper()
level = getattr(logging, level, logging.DEBUG)
sub = msg.get("subsystem", "<external>")
logging.getLogger(sub).log(level, message)
def __init__ (self, address, port = 7790, nexus = None,
connection_class = TCPConnection, max_backoff = 8):
port = int(port)
Task.__init__(self)
Transport.__init__(self, nexus)
self._addr = (str(address),port)
self._connections = set()
self._connection_class = connection_class
self._max_backoff = max_backoff
self.log = log or core.getLogger()
def __init__(self, name="topology"):
EventMixin.__init__(self)
self._entities = {}
self.name = name
self.log = core.getLogger(name)
# If a client registers a handler for these events after they have
# already occurred, we promise to re-issue them to the newly joined
# client.
self._event_promises = {SwitchJoin: self._fulfill_SwitchJoin_promise}
def __init__(self):
self.net = dict()
self.log = core.getLogger()
core.openflow.miss_send_len = 1400
core.openflow.addListeners(self)
self.log.info("NCS initialization")
self.timer = dict()
self.timer[0] = Timer(30, self.gratuitousARP, args=[None],recurring=True)
self.timer[1] = Timer(5, self.dump,recurring=True)
self.net[0xaabbcc] = HotOMNet(0xaabbcc)
def _handle_SwitchDescReceived (event):
s = _format_entry(event)
if not _always and s in _switches:
# We've already logged it.
return
_switches.add(s)
ss = s.split("\n")
logger = core.getLogger("info." + dpid_to_str(event.connection.dpid))
for s in ss:
logger.info(s)
def __init__(self,conf):
self.net = dict()
self.avs = dict()
self.confvstag = dict() # vstag table from config file
self.log = core.getLogger()
core.openflow.miss_send_len = 1400
core.openflow.addListeners(self)
self.log.info("NCS initialization")
self.parseConf(conf)
Timer(30, self.gratuitousARP, args=[None],recurring=True)
Timer(10, self.dump,recurring=True)
def launch (cmd, address = None, port = 7791):
core.quit()
if not address:
address = "127.0.0.1"
import socket
core.getLogger('core').setLevel(100)
log = core.getLogger('ctl')
try:
s = socket.create_connection((address,port), timeout=2)
except:
log.error("Couldn't connect")
return
try:
s.settimeout(2)
s.send(cmd + "\n")
d = s.recv(4096).strip()
core.getLogger("ctl").info(d)
except socket.timeout:
log.warn("No response")
except:
log.exception("While communicating")
def __init__(self, flow_idle_timeout=30, flow_hard_timeout=60,
default_latency=1, default_bandwidth=100):
core.listen_to_dependencies(self)
self.log = core.getLogger()
# self.path_preference_table = PathPreferenceTable.Instance()
self.path_preference_table = PathPreferenceTable()
self.flow_idle_timeout = flow_idle_timeout
self.flow_hard_timeout = flow_hard_timeout
self.default_latency = default_latency # Milliseconds
self.default_bandwidth = default_bandwidth # Megabits
self.path_preferences = dict()
def launch (port = 6633, address = "0.0.0.0"):
if core.hasComponent('of_01'):
return None
global deferredSender
deferredSender = DeferredSender()
if of._logger is None:
of._logger = core.getLogger('libopenflow_01')
l = OpenFlow_01_Task(port = int(port), address = address)
core.register("of_01", l)
return l
def launch (port = 8987): # Set up logging global log log = core.getLogger() # Set up IO loop global _ioloop _ioloop = RecocoIOLoop() #_ioloop.more_debugging = True _ioloop.start() # Register our little JSON core as a component core.registerNew(JSONServer, port=int(port))
def __init__(self, vlan, threshold, *args, **kwargs):
## Define logger (defaults to current path)
self.log = core.getLogger()
# Disable logger for 'packet' (TLV)
logger = core.getLogger("packet")
logger.propagate = False
## Registers every method exposed by the class
core.openflow.addListeners(self)
self.vlan = int(vlan)
## Firewall-related
self.traffic_frequency = {}
# Threshold time (in seconds) to determine harmful network conditions (e.g.: 0.2)
self.threshold = float(threshold)
# Time (in seconds) to maintain the DROP rules for the network traffic deemed harmful
self.idle_drop_time = 30
self.hard_drop_time = 30
## Constants section
# Define value of protocol number assigned to IP and LLDP traffic
self.ip_proto = 2048 #0x0800
self.lldp_proto = 35020 #0x88cc
self.max_priority = 65535
self.log.info("Toy firewall for FGRE 2015 (seconds threshold=%s, vlan=%s)." % (self.threshold, self.vlan))
def _handle_PacketIn (event):
packet = event.parsed
show = _show_by_default
p = packet
while p:
if p.__class__.__name__.lower() in _types:
if _show_by_default:
# This packet is hidden
return
else:
# This packet should be shown
show = True
break
return
if not hasattr(p, 'next'): break
p = p.next
if not show: return
msg = dpidToStr(event.dpid) + ": "
msg = ""
if _verbose:
msg += packet.dump()
else:
p = packet
while p:
if isinstance(p, basestring):
msg += "[%s bytes]" % (len(p),)
break
msg += "[%s]" % (p.__class__.__name__,)
p = p.next
if _max_length:
if len(msg) > _max_length:
msg = msg[:_max_length-3]
msg += "..."
core.getLogger("dump:" + dpidToStr(event.dpid)).debug(msg)
def launch(port=6633, address="0.0.0.0"):
if core.hasComponent("of_01"):
return None
global deferredSender
deferredSender = DeferredSender() # run the __init__ function and start function
if of._logger is None:
of._logger = core.getLogger("libopenflow_01")
l = OpenFlow_01_Task(port=int(port), address=address) # an instance of class 'OpenFlow_01_Task'
core.register("of_01", l)
# print('of_01 has been launched') #print information
return l
def launch():
from pox.core import core
log = core.getLogger()
log.critical("This isn't a POX component.")
log.critical("Please see the documentation.")
raise RuntimeError("This isn't a POX component.")
"""
Inception Cloud ARP module
"""
from pox.core import core
from pox.lib.packet.arp import arp
from pox.lib.packet.ethernet import ethernet
from pox.lib.util import dpid_to_str
import pox.openflow.libopenflow_01 as of
from ext import priority
LOGGER = core.getLogger()
class InceptionArp(object):
"""
Inception Cloud ARP module for handling ARP packets
"""
def __init__(self, inception):
self.inception = inception
# IP address -> MAC address: mapping from IP address to MAC address
# of end hosts for address resolution
self.ip_to_mac = {}
def handle(self, event):
# process only if it is ARP packet
eth_packet = event.parsed
if eth_packet.type != ethernet.ARP_TYPE:
return
LOGGER.info("Handle ARP packet")
from pox.core import core
from pox.lib.revent import *
from pox.lib.recoco import Timer
from pox.openflow.libopenflow_01 import *
from pox.openflow import *
from pox.openflow.discovery import *
from pox.lib.addresses import *
from pox.topology.topology import *
import time
import json
import pymongo
UPDATE_INTERVAL = 5
topology_timer = None
log = core.getLogger("rfproxy")
def rf_id(id):
return "{:#016x}".format(id)
class StatsDB:
def __init__(self):
self.db = {}
self.connection = pymongo.Connection()
self.collection = self.connection.db.rfstats
def update(self, id_, type_, links=None, **data):
if id_ not in self.db:
if links is None:
from pox.openflow.of_json import * import time from threading import Thread from threading import Lock import socket import json import math import statistics as st import time from random import randint from operator import itemgetter from pox.lib.recoco import Timer log = core.getLogger() # We don't want to flood immediately when a switch connects. # Can be overriden on commandline. _flood_delay = 0 LOG = core.getLogger() CONTROLLER_IP = '10.1.4.1' switch_states = [] # in bits, obtained experimentally using TCP - Iperf capacity = 100000000 #bw_for_new_flows = 0.0 remaining_bw = 100000000 num_flows = 0 alfa = 0.9 response_port = 23456
def interact(self):
""" Begin user interaction """
import os
history = self.history
if history is True:
history = ".pox_history"
elif history:
history = os.path.expanduser(history)
if history:
history = os.path.abspath(history)
import readline, atexit
_log = core.getLogger("py")
try:
readline.read_history_file(history)
readline.set_history_length(10000)
_log.debug("Read console history")
except Exception:
pass
def save_history():
readline.write_history_file(history)
_log.debug("Saved console history")
atexit.register(save_history)
if self.completion:
import readline, rlcompleter
ns = globals().copy()
ns.update(self.variables)
# Note that things added to self.variables later won't be available.
# To fix this, make a dict proxy that actually reads from self.variables
# *and* globals().
readline.set_completer(rlcompleter.Completer(ns).complete)
readline.parse_and_bind("tab: complete")
_monkeypatch_console()
# print("This program comes with ABSOLUTELY NO WARRANTY. This program " \
# "is free software,")
# print("and you are welcome to redistribute it under certain conditions.")
# print("Type 'help(pox.license)' for details.")
# Ridiculously gross code to wait for a while before showing the console
is_up = [False]
def notify_up():
is_up[0] = True
core.call_later(notify_up)
while not is_up[0]:
time.sleep(0.2)
if core._openflow_wanted: # Hacky
time.sleep(0.6) # Long enough?
else:
time.sleep(0.2)
if not core.running: return # A race condition, but probably okay
import code
import sys
sys.ps1 = "POX> "
sys.ps2 = " ... "
self.running = True
console = code.InteractiveConsole(self.variables)
# Patch in the synchronized feature
real_runcode = console.runcode
def runcode(code):
if self.variables['sync'] and core.running:
with core.scheduler.synchronized():
return real_runcode(code)
return real_runcode(code)
console.runcode = runcode
# Patch in the event hook; why don't we just subclass InteractiveConsole?!
real_runsource = console.runsource
def runsource(source, *args, **kw):
e = SourceEntered(source)
self.raiseEvent(e)
source = e.source
if source is None: return
return real_runsource(source, *args, **kw)
console.runsource = runsource
try:
import readline
except ImportError:
pass
console.interact('Ready.')
self.running = False
core.quit()
import threading
from .authentication import BasicAuthMixin
from pox.core import core
from pox.lib.revent import Event, EventMixin
import os
import socket
import posixpath
import urllib.request, urllib.parse, urllib.error
import cgi
import errno
from io import StringIO, BytesIO
log = core.getLogger()
try:
weblog = log.getChild("server")
except:
# I'm tired of people running Python 2.6 having problems with this.
#TODO: Remove this someday.
weblog = core.getLogger("webcore.server")
def _setAttribs(parent, child):
attrs = [
'command', 'request_version', 'close_connection', 'raw_requestline',
'requestline', 'path', 'headers', 'wfile', 'rfile', 'server',
'client_address', 'connection', 'request'
]
for a in attrs:
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# POX is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with POX. If not, see <http://www.gnu.org/licenses/>.
"""
This package contains a nom-based L2 learning switch.
"""
from pox.core import core
log = core.getLogger("nom_l2_switch_controller.init")
def launch(distributed=False):
# TODO: need a more transparent mechanism for specifying the debug flag...
"""
Starts a NOM-based L2 learning switch, along with the discovery and topology modules
"""
if type(distributed) == bool and distributed:
distributed = 1
elif type(distributed) == str:
distributed = int(distributed)
import pox.openflow.connection_arbiter
pox.openflow.connection_arbiter.launch()
def setup():
log = core.getLogger(log_name)
tester = Tester(log)
topo = core.sim_topo
if server_isn is None:
TXWindow.generate_isn = lambda _: random.randint(1000, 100000)
else:
TXWindow.generate_isn = lambda _: literal_eval(server_isn)
def get_client_socket():
try:
return next(iter(c1.stack.socket_manager.peered.itervalues()))
except Exception:
return None
c1 = core.sim_topo.get_node("c1")
s1 = core.sim_topo.get_node("s1")
r1 = core.sim_topo.get_node("r1")
r2 = core.sim_topo.get_node("r2")
tm = core.sim_topo.time
r1c1_dev = core.sim_topo.get_devs(r1, c1)[0]
# Create two echo applications. Nobody should be sending, so
# they should just three-way handshake and then sit and stare
# at each other until the simulation ends.
sapp = s1.new_echo(port=1000, listen=True)
capp = c1.new_echo(ip=s1.netdev.ip_addr, port=1000, delay=0.1)
pkts = []
def on_cap(e):
parsed = e.parsed
if not parsed: return
parsed = parsed.find("tcp")
if not parsed: return
# Giant hack, but just tack this stuff on
parsed._devname = e.dev.name
parsed._client = e.dev is r1c1_dev
parsed._server = not parsed._client
csock = get_client_socket()
parsed._client_state = csock.state if csock else None
pkts.append(parsed)
#print e.dev,parsed.dump()
r1.stack.add_packet_capture("*", on_cap, ip_only=True)
def do_score():
# SYN from client
client_seq = pkts[0].seq
tester.expect_true(pkts[0]._client and not pkts[0]._server,
"first pkt comes from client")
tester.expect_true(pkts[0].SYN and not pkts[0].ACK,
"first pkt is SYN not ACK")
# SYN+ACK from server
server_seq = pkts[1].seq
tester.expect_true(not pkts[1]._client and pkts[1]._server,
"second pkt comes from server")
tester.expect_true(pkts[1].SYN and pkts[1].ACK,
"second pkt is SYN+ACK")
tester.expect_eq(client_seq | PLUS | 1, pkts[1].ack,
"second pkt ack seq num is correct")
tester.expect_eq(SYN_SENT, pkts[1]._client_state,
"state is SYN_SENT when r1 receives SYN+ACK")
# ACK from client
tester.expect_true(pkts[2]._client, "third pkt comes from client")
tester.expect_true(not pkts[2].SYN and pkts[2].ACK,
"third pkt is ACK")
tester.expect_eq(server_seq | PLUS | 1, pkts[2].ack,
"third pkt ack seq num is correct")
tester.expect_eq(ESTABLISHED, pkts[2]._client_state,
"state is ESTABLISHED when r1 receives ACK")
tester.expect_eq(3, len(pkts), "3 packets total")
def on_end():
try:
do_score()
tester.finish()
except Exception:
log.exception("Exception during scoring")
core.quit()
tm.set_timer_at(float(run_time), on_end)
def setup ():
log = core.getLogger(log_name)
tester = Tester(log)
topo = core.sim_topo
if server_isn is None:
TXWindow.generate_isn = lambda _: random.randint(1000,100000)
else:
TXWindow.generate_isn = lambda _: literal_eval(server_isn)
def get_client_socket ():
try:
return next(iter(c1.stack.socket_manager.peered.itervalues()))
except Exception:
return None
c1 = core.sim_topo.get_node("c1")
s1 = core.sim_topo.get_node("s1")
r1 = core.sim_topo.get_node("r1")
r2 = core.sim_topo.get_node("r2")
tm = core.sim_topo.time
r1c1_dev = core.sim_topo.get_devs(r1,c1)[0]
# sapp calls close() after receiving data
# capp calls sends data and immediately calls close()
sapp = s1._new_resocket_app(ClosingRXApp, port=1000, listen=True)
capp = c1.new_fast_sender(data=1000, ip=s1.netdev.ip_addr, port=1000, delay=0.5)
pkts = []
def on_cap (e):
parsed = e.parsed
if not parsed: return
parsed = parsed.find("tcp")
if not parsed: return
# Giant hack, but just tack this stuff on
parsed._devname = e.dev.name
parsed._client = e.dev is r1c1_dev
parsed._server = not parsed._client
csock = get_client_socket()
parsed._client_state = csock.state if csock else None
pkts.append(parsed)
#print e.dev,parsed.dump()
r1.stack.add_packet_capture("*", on_cap, ip_only=True)
def do_score ():
tester.expect_eq("*" * 1000, sapp.all_rx[0][1], "payload correctly sent")
payload_pkts = sum(1 for p in pkts if p.payload)
tester.expect_eq(1, payload_pkts, "1 retransmission")
class drop_payload(object):
def __init__(self):
self.dropped = False
def __call__ (self, dev, packet):
tcp = packet.find("tcp")
if not tcp:
return False
if tcp.payload and not self.dropped:
self.dropped = True
log.info("dropped packet seq={0}, ack={1}".format(tcp.seq, tcp.ack))
return True
return False
topo.get_wire(c1,r1).drop_conditions.append(drop_payload())
def on_end ():
try:
do_score()
tester.finish()
except Exception:
log.exception("Exception during scoring")
core.quit()
tm.set_timer_at(float(run_time), on_end)
# strings from lark setup callout script and parses these
# received strings to job and machine classads. It looks for
# interesting classad attributes value and uses it for network
# scheduling.
#
import sys
import time
import socket
import threading
import SocketServer
import classad
import htcondor
from pox.core import core
log = core.getLogger()
try:
serverlog = log.getChild("server")
except:
serverlog = core.getLogger("htcondor_module.server")
threadLock = threading.Lock()
# use a dictionary to store all the network classads, internal IPv4 address
# is used as the key
classadDict = {}
class ThreadedTCPRequestHandler(SocketServer.BaseRequestHandler):
def handle(self):
# there are two possible kinds of request to handle
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE WORK OR THE USE OR OTHER DEALINGS
# IN THE WORK.
#----------------------------------------------------------------------
from pox.core import core
import pox.openflow.libopenflow_01 as of
from pox.openflow import *
from utils import *
from BBN_SimpleL2Learning import SimpleL2LearningSwitch
log = core.getLogger() # Use central logging service
class DuplicateTrafficSwitch(SimpleL2LearningSwitch):
def __init__(self, connection, duplicate_port):
SimpleL2LearningSwitch.__init__(self, connection, False)
self._connection = connection;
self._duplicate_port=duplicate_port
self._of_duplicate_port=getOpenFlowPort(connection, duplicate_port)
def _handle_PacketIn(self, event):
log.debug("Got a packet : " + str(event.parsed))
self.packet = event.parsed
self.event = event
self.macLearningHandle()
out_port = self.get_out_port()
def setup():
log = core.getLogger(log_name)
tester = Tester(log)
topo = core.sim_topo
if server_isn is None:
TXWindow.generate_isn = lambda _: random.randint(1000, 100000)
else:
TXWindow.generate_isn = lambda _: literal_eval(server_isn)
def get_client_socket():
try:
return next(iter(c1.stack.socket_manager.peered.itervalues()))
except Exception:
return None
c1 = core.sim_topo.get_node("c1")
s1 = core.sim_topo.get_node("s1")
r1 = core.sim_topo.get_node("r1")
r2 = core.sim_topo.get_node("r2")
tm = core.sim_topo.time
r1c1_dev = core.sim_topo.get_devs(r1, c1)[0]
# sapp calls close() after receiving data
# capp calls sends data and immediately calls close()
sapp = s1._new_resocket_app(ClosingRXApp, port=1000, listen=True)
capp = c1._new_resocket_app(TXRatedApp,
ip=s1.netdev.ip_addr,
port=1000,
delay=0.5)
capp.tx_data = '#' * 1300 * 100
pkts = []
client_socket = None
def on_cap(e):
if not pkts:
global client_socket
client_socket = get_client_socket()
parsed = e.parsed
if not parsed: return
parsed = parsed.find("tcp")
if not parsed: return
# Giant hack, but just tack this stuff on
parsed._devname = e.dev.name
parsed._client = e.dev is r1c1_dev
parsed._server = not parsed._client
csock = get_client_socket()
parsed._client_state = csock.state if csock else None
pkts.append(parsed)
#print e.dev,parsed.dump()
r1.stack.add_packet_capture("*", on_cap, ip_only=True)
def do_score():
tester.expect_eq("#" * 1300 * 100, sapp.all_rx[0][1],
"payload correctly sent")
global client_socket
actual_srtt = client_socket.srtt
tester.expect_true(client_socket.rto < 32, "rto < 32")
tester.expect_true(client_socket.srtt < 16, "srtt < 16")
tester.expect_true(client_socket.rttvar > 1.5, "rttvar > 1.5")
random.seed(168)
class drop_pct(object):
def __init__(self):
self.pct = 0.04
self.dropped_pkts = {}
def __call__(self, dev, packet):
tcp = packet.find("tcp")
# only packets with payload
if not tcp or not tcp.payload:
return False
if tcp.seq in self.dropped_pkts:
return False
r = random.uniform(0, 1)
if r <= self.pct:
self.dropped_pkts[tcp.seq] = True
log.error("dropped pkt")
return True
return False
topo.get_wire(r1, r2).drop_conditions.append(drop_pct())
def on_end():
try:
do_score()
tester.finish()
except Exception:
log.exception("Exception during scoring")
core.quit()
tm.set_timer_at(float(run_time), on_end)
def launch(debug=False):
core.registerNew(topo_addressing)
from proto.arp_helper import launch
launch(eat_packets=False)
if not debug:
core.getLogger("proto.arp_helper").setLevel(99)
"""
from pox.core import core
import pox.openflow.libopenflow_01 as of
import pox.lib.packet as pkt
from pox.lib.addresses import IPAddr, EthAddr, parse_cidr
from pox.lib.addresses import IP_BROADCAST, IP_ANY
from pox.lib.revent import *
from pox.lib.util import dpid_to_str
from pox.proto.dhcpd import DHCPLease, DHCPD
from collections import defaultdict
from pox.openflow.discovery import Discovery
import time
log = core.getLogger("f.t_p")
# Adjacency map. [sw1][sw2] -> port from sw1 to sw2
adjacency = defaultdict(lambda: defaultdict(lambda: None))
# Switches we know of. [dpid] -> Switch and [id] -> Switch
switches_by_dpid = {}
switches_by_id = {}
# [sw1][sw2] -> (distance, intermediate)
path_map = defaultdict(lambda: defaultdict(lambda: (None, None)))
def dpid_to_mac(dpid):
return EthAddr("%012x" % (dpid & 0xffFFffFFffFF, ))
# Copyright 2017 Janos Czentye # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """ Subpackage for classes related mostly to Service (Graph) Adaptation sublayer """ from pox.core import core LAYER_NAME = "service" log = core.getLogger(LAYER_NAME)
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
'''
import pox.openflow.libopenflow_01 as of
from pox.core import core
from pox.lib.recoco import Timer
log = core.getLogger("Global_Stats")
rx_packets = 0
tx_packets = 0
rx_dropped = 0
tx_dropped = 0
rx_errors = 0
tx_errors = 0
num_sw = 0 #total num of switches
num_done = 0 #num of switches for whom stats have been collected
wait_timeout = 0
handler = {} #{dpid:portstats listner handler}
def _init():
# Import some POX stuff
from pox.core import core # Main POX object
import pox.openflow.libopenflow_01 as of # OpenFlow 1.0 library
import pox.lib.packet as pkt # Packet parsing/construction
from pox.lib.addresses import EthAddr, IPAddr # Address types
import pox.lib.util as poxutil # Various util functions
import pox.lib.revent as revent # Event library
import pox.lib.recoco as recoco # Multitasking library
from pox.lib.util import dpid_to_str
from pox.openflow.of_json import *
import multiprocessing
import json
# Create a logger for this component
log = core.getLogger("Monitor")
# Create a global var to portStatus method
def _send_to_pipe(data):
with open('/dev/shm/poxpipe','w') as pipe:
pipe.write(data)
def _to_pipe(data):
p = multiprocessing.Process(target=_send_to_pipe, args=(data,))
p.start()
def _go_up (event):
# Event handler called when POX goes into up state
# (we actually listen to the event in launch() below)
def setup():
log = core.getLogger(log_name)
tester = Tester(log)
topo = core.sim_topo
if server_isn is None:
TXWindow.generate_isn = lambda _: random.randint(1000, 100000)
else:
TXWindow.generate_isn = lambda _: literal_eval(server_isn)
def get_client_socket():
try:
return next(iter(c1.stack.socket_manager.peered.itervalues()))
except Exception:
return None
c1 = core.sim_topo.get_node("c1")
s1 = core.sim_topo.get_node("s1")
r1 = core.sim_topo.get_node("r1")
r2 = core.sim_topo.get_node("r2")
tm = core.sim_topo.time
r1c1_dev = core.sim_topo.get_devs(r1, c1)[0]
# sapp calls close() immediately after connect()
# capp calls close() after 1 sec
sapp = s1.new_basic_state_trans(port=1000, listen=True)
capp = c1._new_resocket_app(DelayedCloseApp,
ip=s1.netdev.ip_addr,
port=1000,
delay=0.1)
pkts = []
client_socket = None
def on_cap(e):
if not pkts:
global client_socket
client_socket = get_client_socket()
parsed = e.parsed
if not parsed: return
parsed = parsed.find("tcp")
if not parsed: return
# Giant hack, but just tack this stuff on
parsed._devname = e.dev.name
parsed._client = e.dev is r1c1_dev
parsed._server = not parsed._client
csock = get_client_socket()
parsed._client_state = csock.state if csock else None
pkts.append(parsed)
#print e.dev,parsed.dump()
r1.stack.add_packet_capture("*", on_cap, ip_only=True)
def from_server(p):
return p._server and not p._client
def from_client(p):
return not p._server and p._client
def do_score():
# SYN from client
tester.expect_true(from_client(pkts[0]), "1st SYN from client")
# SYN+ACK from server
tester.expect_true(from_server(pkts[1]),
"2nd pkt comes from server")
tester.expect_eq(pkts[1]._client_state, SYN_SENT,
"state is SYN_SENT when r2 receives SYN+ACK")
# ACK from client
tester.expect_true(from_client(pkts[2]),
"3rd pkt comes from client")
tester.expect_eq(pkts[2]._client_state, ESTABLISHED,
"state is ESTABLISHED when r2 receives ACK")
# FIN+ACK from server
tester.expect_true(from_server(pkts[3]),
"4th pkt comes from server")
tester.expect_eq(pkts[3]._client_state, ESTABLISHED,
"state is ESTABLISHED when r2 receives FINACK")
tester.expect_true(pkts[3].ACK and pkts[3].FIN,
"4th pkt is FIN+ACK")
# ACK from client
tester.expect_true(from_client(pkts[4]),
"5th pkt comes from client")
tester.expect_true(pkts[4].ACK, "5th pkt is ACK")
# FIN+ACK from client
tester.expect_true(from_client(pkts[5]),
"6th pkt comes from client")
tester.expect_true(pkts[5].ACK and pkts[5].FIN,
"6th pkt is FIN+ACK")
# ACK from server
tester.expect_true(from_server(pkts[6]),
"7th pkt comes from server")
tester.expect_eq(LAST_ACK, pkts[6]._client_state,
"state is LAST_ACK when r2 receives ACK")
tester.expect_true(pkts[6].ACK, "7th pkt is ACK")
global client_socket
tester.expect_eq(CLOSED, client_socket.state,
"At end, client state is CLOSED")
def on_end():
try:
do_score()
tester.finish()
except Exception:
log.exception("Exception during scoring")
core.quit()
tm.set_timer_at(float(run_time), on_end)
def launch (entire=False):
"""
If --entire then the whole message is color-coded, otherwise just the
log level.
Also turns on interpretation of some special sequences in the log
format string. For example, try:
log --format="%(levelname)s: @@@bold%(message)s@@@normal" log.color
"""
global enabled
if enabled: return
from pox.core import core
log = core.getLogger()
windows_hack = False
# Try to work on Windows
if sys.platform == "win32":
try:
from colorama import init
windows_hack = True
init()
except:
log.info("You need colorama if you want color logging on Windows")
global _strip_only
_strip_only = True
from pox.core import _default_log_handler as dlf
if not dlf:
log.warning("Color logging disabled -- no default logger found")
return
#if not hasattr(dlf, 'formatter'):
# log.warning("Color logging disabled -- no formatter found")
# return
#if not hasattr(dlf.formatter, '_fmt'):
# log.warning("Color logging disabled -- formatter unrecognized")
# return
# Monkeypatch in a new format function...
old_format = dlf.format
if entire:
def new_format (record):
msg = _proc(old_format(record), record.levelname)
color = LEVEL_COLORS.get(record.levelname)
if color is None:
return msg
return _color(color, msg)
else:
def new_format (record):
color = LEVEL_COLORS.get(record.levelname)
oldlevelname = record.levelname
if color is not None:
record.levelname = _color(color, record.levelname)
return _proc(old_format(record), oldlevelname)
dlf.format = new_format
if windows_hack:
if hasattr(dlf, "stream"):
if dlf.stream is sys.__stderr__:
dlf.stream = sys.stderr
enabled = True
else:
enabled = True
from pox.core import core
from pox.lib.addresses import *
from pox.lib.packet import *
from pox.lib.recoco.recoco import *
import fileinput
import re
# Get a logger
log = core.getLogger("fw")
class Firewall(object):
"""
Firewall class.
Extend this to implement some firewall functionality.
Don't change the name or anything -- the eecore component
expects it to be firewall.Firewall.
"""
def __init__(self):
"""
Constructor.
Put your initialization code here.
"""
self.debug = True
self.debug2 = True
self.banned_ports = set()
for line in fileinput.input('/root/pox/ext/banned-ports.txt'):
portNumber = int(line.rstrip())
log.debug(portNumber)
self.banned_ports.add(portNumber)
self.banned_domains = set()
for line in fileinput.input('/root/pox/ext/banned-domains.txt'):
def setup():
log = core.getLogger(log_name)
tester = Tester(log)
topo = core.sim_topo
if server_isn is None:
TXWindow.generate_isn = lambda _: random.randint(1000, 100000)
else:
TXWindow.generate_isn = lambda _: literal_eval(server_isn)
def get_client_socket():
try:
return next(iter(c1.stack.socket_manager.peered.itervalues()))
except Exception:
return None
c1 = core.sim_topo.get_node("c1")
s1 = core.sim_topo.get_node("s1")
r1 = core.sim_topo.get_node("r1")
r2 = core.sim_topo.get_node("r2")
tm = core.sim_topo.time
r1c1_dev = core.sim_topo.get_devs(r1, c1)[0]
# sapp calls close() after receiving data
# capp calls sends data and immediately calls close()
sapp = s1._new_resocket_app(ClosingRXApp, port=1000, listen=True)
capp = c1.new_fast_sender(data=100,
ip=s1.netdev.ip_addr,
port=1000,
delay=0.5)
pkts = []
def on_cap(e):
parsed = e.parsed
if not parsed: return
parsed = parsed.find("tcp")
if not parsed: return
# Giant hack, but just tack this stuff on
parsed._devname = e.dev.name
parsed._client = e.dev is r1c1_dev
parsed._server = not parsed._client
csock = get_client_socket()
parsed._client_state = csock.state if csock else None
pkts.append(parsed)
#print e.dev,parsed.dump()
r1.stack.add_packet_capture("*", on_cap, ip_only=True)
def do_score():
tester.expect_eq("*" * 100, sapp.all_rx[0][1],
"payload correctly sent")
# search first FIN
fin_idx = -1
for i, p in enumerate(pkts):
if p.FIN:
fin_idx = i
# make sure there's no payloads after FIN
payload_after_fin = False
for p in pkts[fin_idx:]:
if p.payload:
payload_after_fin = True
break
tester.expect_true(not payload_after_fin, "no payload after fin")
def on_end():
try:
do_score()
tester.finish()
except Exception:
log.exception("Exception during scoring")
core.quit()
tm.set_timer_at(float(run_time), on_end)
def setup():
log = core.getLogger(log_name)
tester = Tester(log)
topo = core.sim_topo
if server_isn is None:
TXWindow.generate_isn = lambda _: random.randint(1000, 100000)
else:
TXWindow.generate_isn = lambda _: literal_eval(server_isn)
def get_client_socket():
try:
return next(iter(c1.stack.socket_manager.peered.itervalues()))
except Exception:
return None
c1 = core.sim_topo.get_node("c1")
s1 = core.sim_topo.get_node("s1")
r1 = core.sim_topo.get_node("r1")
r2 = core.sim_topo.get_node("r2")
tm = core.sim_topo.time
r1c1_dev = core.sim_topo.get_devs(r1, c1)[0]
# sapp calls close() after receiving data
# capp calls sends data and immediately calls close()
sapp = s1._new_resocket_app(ClosingRXApp, port=1000, listen=True)
capp = c1._new_resocket_app(TXRatedApp,
ip=s1.netdev.ip_addr,
port=1000,
delay=0.5)
capp.tx_data = '#' * 1300 * 100
pkts = []
client_socket = None
def on_cap(e):
if not pkts:
global client_socket
client_socket = get_client_socket()
parsed = e.parsed
if not parsed: return
parsed = parsed.find("tcp")
if not parsed: return
# Giant hack, but just tack this stuff on
parsed._devname = e.dev.name
parsed._client = e.dev is r1c1_dev
parsed._server = not parsed._client
csock = get_client_socket()
parsed._client_state = csock.state if csock else None
pkts.append(parsed)
#print e.dev,parsed.dump()
r1.stack.add_packet_capture("*", on_cap, ip_only=True)
def do_score():
tester.expect_eq("#" * 1300 * 100, sapp.all_rx[0][1],
"payload correctly sent")
lat = 200 / 1000.0
low_srtt = lat * 2 * 0.9
high_srtt = lat * 2 * 1.1
global client_socket
actual_srtt = client_socket.srtt
tester.expect_true(low_srtt <= actual_srtt <= high_srtt,
"srtt is within +-10% of 2*RTT")
def on_end():
try:
do_score()
tester.finish()
except Exception:
log.exception("Exception during scoring")
core.quit()
tm.set_timer_at(float(run_time), on_end)
def set_miss_length(event=None):
if not core.hasComponent('openflow'):
return
core.openflow.miss_send_len = 0x7fff
core.getLogger().info("Requesting full packet payloads")
return EventRemove
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
A very sloppy IP load balancer.
Run it with --ip=<Service IP> --servers=IP1,IP2,...
Please submit improvements. :)
"""
from pox.core import core
import pox
log = core.getLogger("iplb")
from pox.lib.packet.ethernet import ethernet, ETHER_BROADCAST
from pox.lib.packet.ipv4 import ipv4
from pox.lib.packet.arp import arp
from pox.lib.addresses import IPAddr, EthAddr
from pox.lib.util import str_to_bool, dpid_to_str
import pox.openflow.libopenflow_01 as of
import time
import random
FLOW_IDLE_TIMEOUT = 10
FLOW_MEMORY_TIMEOUT = 60
from zlib import crc32
from pox.core import core
from pox.lib.util import dpidToStr
import pox.openflow.libopenflow_01 as of
from pox.lib.revent import EventMixin
from pox.lib.addresses import EthAddr
from pox.lib.packet.ipv4 import ipv4
from pox.lib.packet.udp import udp
from pox.lib.packet.tcp import tcp
from pox.lib.util import str_to_bool, dpid_to_str
from ripllib.mn import topos
from util import buildTopo, getRouting
log = core.getLogger("hederaController")
# log.setLevel(logging.WARNING)
# Number of bytes to send for packet_ins
MISS_SEND_LEN = 2000
IDLE_TIMEOUT = 10
CAPACITY = 1
# Borrowed from pox/forwarding/l2_multi
class Switch(object):
def __init__(self):
self.connection = None
self.ports = None
self.dpid = None
class AbstractRequestHandler(BaseHTTPRequestHandler, object):
"""
Minimalistic RESTful API for Layer APIs.
Handle /escape/* URLs.
Method calling permissions represented in escape_intf dictionary.
.. warning::
This class is out of the context of the recoco's co-operative thread
context! While you don't need to worry much about synchronization between
recoco tasks, you do need to think about synchronization between recoco task
and normal threads. Synchronisation is needed to take care manually - use
relevant helper function of core object: :func:`callLater()`/
:func:`raiseLater()` or use :func:`schedule_as_coop_task()
<escape.util.misc.schedule_as_coop_task>` decorator defined in
:mod:`escape.util.misc` on the called function!
"""
# For HTTP Response messages
server_version = "ESCAPE/" + get_escape_version()
"""server version for HTTP Response messages"""
static_prefix = "escape"
# Bound HTTP verbs to UNIFY's API functions
request_perm = {
'GET': ('ping', 'version', 'operations'),
'POST': ('ping', )
}
"""Bound HTTP verbs to UNIFY's API functions"""
# Name of the layer API to which the server bounded
bounded_layer = None
"""Name of the layer API to which the server bounded"""
# Name mapper to avoid Python naming constraint (dict: rpc-name: mapped name)
rpc_mapper = None
"""Name mapper to avoid Python naming constraint"""
# Logger name
LOGGER_NAME = "REST-API"
"""Logger name"""
# Logger. Should be overrided in child classes
log = core.getLogger("[%s]" % LOGGER_NAME)
# Use Virtualizer format
virtualizer_format_enabled = False
"""Use Virtualizer format"""
# Default communication approach
format = "FULL"
"""Default communication approach"""
MESSAGE_ID_NAME = "message-id"
def setup(self):
BaseHTTPRequestHandler.setup(self)
def do_GET(self):
"""
Get information about an entity. R for CRUD convention.
"""
self._process_url()
def do_POST(self):
"""
Create an entity. C for CRUD convention.
:return: None
"""
self._process_url()
def do_PUT(self):
"""
Update an entity. U for CRUD convention.
:return: None
"""
self._process_url()
def do_DELETE(self):
"""
Delete an entity. D for CRUD convention.
:return: None
"""
self._process_url()
# Unsupported HTTP verbs
def do_OPTIONS(self):
"""
Handling unsupported HTTP verbs.
:return: None
"""
self.send_error(httplib.NOT_IMPLEMENTED)
self.wfile.close()
def do_HEAD(self):
"""
Handling unsupported HTTP verbs.
:return: None
"""
# self.send_error(501)
self.wfile.close()
def do_TRACE(self):
"""
Handling unsupported HTTP verbs.
:return: None
"""
self.send_error(httplib.NOT_IMPLEMENTED)
self.wfile.close()
def do_CONNECT(self):
"""
Handling unsupported HTTP verbs.
:return: None
"""
self.send_error(httplib.NOT_IMPLEMENTED)
self.wfile.close()
def get_request_params(self):
"""
Parse request params from URL.
:return: parsed params
:rtype: dict
"""
params = {}
query = urlparse.urlparse(self.path).query
if query:
query = query.split('&')
for param in query:
if '=' in param:
name, value = param.split('=', 1)
params[name] = value
else:
params[param] = True
# Check message-id in headers as backup
if self.MESSAGE_ID_NAME not in params:
if self.MESSAGE_ID_NAME in self.headers:
params[self.MESSAGE_ID_NAME] = self.headers[
self.MESSAGE_ID_NAME]
self.log.debug("Detected message id: %s" %
params[self.MESSAGE_ID_NAME])
else:
params[self.MESSAGE_ID_NAME] = str(uuid.uuid1())
self.log.debug("No message-id! Generated id: %s" %
params[self.MESSAGE_ID_NAME])
else:
self.log.debug("Detected message id: %s" %
params[self.MESSAGE_ID_NAME])
self.log.debug("Detected request parameters: %s" % params)
return params
def _process_url(self):
"""
Split HTTP path and call the carved function if it is defined in this class
and in request_perm.
:return: None
"""
self.log.debug(">>> Got HTTP %s request: %s:%s --> %s" %
(self.command, self.client_address[0],
self.client_address[1], self.path))
http_method = self.command
real_path = urlparse.urlparse(self.path).path
try:
prefix = '/%s/' % self.static_prefix
if real_path.startswith(prefix):
self.func_name = real_path[len(prefix):].split('/')[0]
if self.rpc_mapper:
try:
self.func_name = self.rpc_mapper[self.func_name]
except KeyError:
# No need for RPC name mapping, continue
pass
if http_method in self.request_perm:
if self.func_name in self.request_perm[http_method]:
if hasattr(self, self.func_name):
# Response is assembled, and sent back by handler functions
params = self.get_request_params()
getattr(self, self.func_name)(params=params)
else:
self.send_error(
httplib.INTERNAL_SERVER_ERROR,
"Missing handler for actual request!")
else:
self.send_error(httplib.NOT_ACCEPTABLE)
else:
self.send_error(httplib.NOT_IMPLEMENTED)
else:
self.send_error(httplib.NOT_FOUND,
"URL path is not valid or misconfigured!")
except RESTError as e:
# Handle all the errors
if e.code:
self.send_error(e.code, e.msg)
else:
self.send_error(httplib.INTERNAL_SERVER_ERROR, e.msg)
except:
# Got unexpected exception
self.send_error(httplib.INTERNAL_SERVER_ERROR)
self.log.error("\n%s" % traceback.format_exc())
finally:
self.func_name = None
self.wfile.flush()
self.wfile.close()
self.log.debug(">>> HTTP request: %s ended!" %
str(self.raw_requestline).rstrip())
def _get_body(self):
"""
Parse HTTP request body as a plain text.
.. note::
Call only once by HTTP request.
.. note::
Parsed JSON object is Unicode.
GET, DELETE messages don't have body - return empty dict by default.
:return: request body in str format
:rtype: str
"""
charset = 'utf-8'
# json.loads returns an empty dict if it's called with an empty string
# but this check we can avoid to respond with unnecessary missing
# content-* error
if self.command.upper() in ('GET', 'DELETE'):
return {}
try:
splitted_type = self.headers['Content-Type'].split('charset=')
if len(splitted_type) > 1:
charset = splitted_type[1]
content_len = int(self.headers['Content-Length'])
raw_data = self.rfile.read(size=content_len).encode(charset)
# Avoid missing param exception by hand over an empty json data
return raw_data if content_len else "{}"
except KeyError as e:
# Content-Length header is not defined
# or charset is not defined in Content-Type header.
if e.args[0] == 'Content-Type':
self.log.warning("Missing header from request: %s" % e.args[0])
if e.args[0] == 'Content-Length':
# 411: ('Length Required', 'Client must specify Content-Length.'),
raise RESTError(code=httplib.LENGTH_REQUIRED)
else:
raise RESTError(code=httplib.PRECONDITION_FAILED,
msg="Missing header from request: %s" %
e.args[0])
except ValueError as e:
# Failed to parse request body to JSON
self.log_error("Request parsing failed: %s", e)
raise RESTError(code=httplib.UNSUPPORTED_MEDIA_TYPE,
msg="Request parsing failed: %s" % e)
def send_REST_headers(self):
"""
Set the allowed REST verbs as an HTTP header (Allow).
:return: None
"""
try:
if self.func_name:
self.send_header(
'Allow', ','.join([
str(verbs)
for verbs, f in self.request_perm.iteritems()
if self.func_name in f
]))
except KeyError:
pass
def send_acknowledge(self, code=None, message_id=None):
"""
Send back acknowledge message.
:param code: use explicit response code
:type code: int
:param message_id: response body
:param message_id: dict
:return: None
"""
if code:
self.send_response(int(code))
else:
self.send_response(httplib.ACCEPTED)
if message_id:
self.send_header('message-id', message_id)
self.send_REST_headers()
self.end_headers()
def send_raw_response(self,
raw_data,
code=None,
content="text/plain",
encoding='utf-8'):
"""
Send requested data.
:param code: use explicit response code
:type code: int
:param content: use explicit content type
:type content: str
:param raw_data: data in JSON format
:type raw_data: dict
:param encoding: Set data encoding (optional)
:type encoding: str
:return: None
"""
if code:
self.send_response(int(code))
else:
self.send_response(httplib.OK)
self.send_header('Content-Type',
'%s; charset=%s' % (content, encoding))
self.send_header('Content-Length', len(raw_data))
self.send_REST_headers()
self.end_headers()
self.wfile.write(raw_data)
def send_json_response(self, data, code=None, encoding='utf-8'):
"""
Send requested data in JSON format.
:param data: data in JSON format
:type data: dict
:param code: use explicit response code
:type code: int
:param encoding: Set data encoding (optional)
:type encoding: str
:return: None
"""
response_body = json.dumps(data, encoding=encoding)
return self.send_raw_response(raw_data=response_body,
code=code,
content="application/json",
encoding=encoding)
error_content_type = "text/json"
"""Content-Type for error responses"""
def send_error(self, code, message=None):
"""
Override original function to send back allowed HTTP verbs and set format
to JSON.
:param code: error code
:type code: int
:param message: error message
:type message: str
:return: None
"""
try:
short, long = self.responses[code]
except KeyError:
short, long = '???', '???'
if message is None:
message = short
explain = long
self.log_error("code %d, message %s", code, message)
# using _quote_html to prevent Cross Site Scripting attacks (see bug
# #1100201)
content = {
"title": "Error response",
'Error code': code,
'Message': message,
'Explanation': explain
}
self.send_response(code, message)
self.send_header("Content-Type", self.error_content_type)
self.send_header('Connection', 'close')
# self.send_REST_headers()
self.end_headers()
if self.command != 'HEAD' and code >= 200 and code not in (204, 304):
self.wfile.write(json.dumps(content))
def log_error(self, mformat, *args):
"""
Overwritten to use POX logging mechanism.
:param mformat: message format
:type mformat: str
:return: None
"""
self.log.error(
"%s - - [%s] %s" % (self.client_address[0],
self.log_date_time_string(), mformat % args))
def log_message(self, mformat, *args):
"""
Disable logging of incoming messages.
:param mformat: message format
:type mformat: str
:return: None
"""
pass
def log_full_message(self, mformat, *args):
"""
Overwritten to use POX logging mechanism.
:param mformat: message format
:type mformat: str
:return: None
"""
self.log.debug(
"%s - - [%s] %s" % (self.client_address[0],
self.log_date_time_string(), mformat % args))
def _proceed_API_call(self, function, *args, **kwargs):
"""
Fail-safe method to call API function.
The cooperative micro-task context is handled by actual APIs.
Should call this with params, not directly the function of actual API.
:param function: function name
:type function: str
:param args: Optional params
:type args: tuple
:param kwargs: Optional named params
:type kwargs: dict
:return: None
"""
if core.core.hasComponent(self.bounded_layer):
layer = core.components[self.bounded_layer]
if hasattr(layer, function):
return getattr(layer, function)(*args, **kwargs)
else:
self.log.warning(
'Mistyped or not implemented API function call: %s ' %
function)
raise RESTError(
msg='Mistyped or not implemented API function call: %s ' %
function)
else:
self.log.error(
'Error: No component has registered with the name: %s, '
'ABORT function call!' % self.bounded_layer)
##############################################################################
# Basic REST-API functions
##############################################################################
# noinspection PyUnusedLocal
def ping(self, params):
"""
For testing REST API aliveness and reachability.
:param params: additional params (skipped)
:return: None
"""
if self.server.ping_response_code == self.server.POST_UP_PING_CODE:
response_body = "OK"
else:
response_body = "INITIALIZING"
self.send_response(code=self.server.ping_response_code)
self.send_header('Content-Type', 'text/plain')
self.send_header('Content-Length', len(response_body))
self.send_REST_headers()
self.end_headers()
self.wfile.write(response_body)
self.log.debug("Sent response: %s, %s" %
(self.server.ping_response_code, response_body))
# noinspection PyUnusedLocal
def version(self, params):
"""
Return with version
:param params: additional params (skipped)
:return: None
"""
self.log.debug("Call REST-API function: version")
body = {"name": __project__, "version": get_escape_version()}
self.send_json_response(body)
self.log.debug("Sent response: %s" % body)
# noinspection PyUnusedLocal
def operations(self, params):
"""
Return with allowed operations
:param params: additional params (skipped)
:return: None
"""
self.log.debug("Call REST-API function: operations")
self.send_json_response(self.request_perm)
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with POX. If not, see <http://www.gnu.org/licenses/>.
"""
This is a prototype control application written on top of the (substrate) NOM.
It converts NOM switch entities into LearningSwitches.
"""
from pox.core import core
from pox.controllers.controller import Controller
from learning_switch import LearningSwitch
name = "l2_controller"
log = core.getLogger(name)
# In addition to declaring the user-defined NOM entity, the application must tell the platform
# how and when to instantiate these NOM entities. We do this with the following controller:
class nom_l2_switch_controller(Controller):
""" Controller that treats the network as a set of learning switches """
_core_name = name
def __init__(self):
""" Initializes the l2 switch controller component """
Controller.__init__(self)
log.debug("nom_l2_switch_controller booting...")
def _handle_topology_SwitchJoin(self, switchjoin_event):
An L2 learning switch.
It is derived from one written live for an SDN crash course.
It is somwhat similar to NOX's pyswitch in that it installs
exact-match rules for each flow.
"""
from __future__ import division
from random import randrange
from pox.core import core
import pox.openflow.libopenflow_01 as of
from pox.lib.util import dpid_to_str
from pox.lib.util import str_to_bool
import sys, os, commands, time
from pox.lib.util import dpidToStr
log = core.getLogger()
#-------------------------------define flow rate----------
flow_rate = 50
interval = 1 / flow_rate
print 'current flow modification rate is:', flow_rate
global burst
burst = {}
# We don't want to flood immediately when a switch connects.
# Can be overriden on commandline.
_flood_delay = 0
class LearningSwitch(object):
"""
The learning switch "brain" associated with a single OpenFlow switch.
from pox.core import core
import pox.openflow.libopenflow_01 as of
from pox.lib.revent import *
from pox.lib.util import dpidToStr
from pox.lib.revent import EventMixin
from pox.openflow.of_json import *
from threading import Thread
import socket
import json
import math
import time
LOG = core.getLogger()
CONTROLLER_IP = '10.1.4.1'
class ServerSocket(Thread):
""" Class that listens for switch messages """
def __init__(self, connections):
Thread.__init__(self)
self.sock = None
self.connections = connections #dpdi of the switch
def run(self):
self.sock = socket.socket()
host = CONTROLLER_IP
port = 12345 # Reserve a port for own communication btwn switches and controller
#log.info("Binding to listen for switch messages")
# ext/aula2ex2.py
# Importar as bibliotecas
from pox.core import core
import pox.openflow.libopenflow_01 as of
from pox.lib.revent import *
from pox.lib.addresses import EthAddr, IPAddr
from pox.lib.util import dpidToStr
log = core.getLogger() # logging
class aula2ex2(EventMixin):
def __init__(self):
self.listenTo(core.openflow)
def _handle_ConnectionUp(self, event):
log.debug("Connection UP from %s", event.dpid)
def _handle_PacketIn(self, event):
packet = event.parsed
# Drop de todos os pacotes
msg = of.ofp_flow_mod()
msg.match.in_port = event.port
msg.match.dl_src = packet.src
msg.match.dl_dst = packet.dst
event.connection.send(msg)
log.debug("Drop packet sw=%s in_port=%s src=%s dst=%s" \
% (event.dpid, event.port, packet.src, packet.dst))