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MiniNAM.py
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MiniNAM.py
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# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation;
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#
# Created by Ahmed Khalid [email protected] and Jason Quinlan [email protected]
# 03 November 2017 - version number 1.0.1
import socket
from struct import *
from subprocess import *
import threading
from mininet.clean import cleanup
from mininet.cli import CLI
from mininet.log import lg, LEVELS, info, debug, warn, error
from mininet.net import MininetWithControlNet
from mininet.node import ( Host, Node, CPULimitedHost, Controller, OVSController,
Ryu, NOX, RemoteController, findController,
DefaultController, NullController,
UserSwitch, OVSSwitch, OVSBridge,
IVSSwitch )
from mininet.nodelib import LinuxBridge
from mininet.link import Link, TCLink, OVSLink, TCULink
from mininet.topo import ( SingleSwitchTopo, LinearTopo,
SingleSwitchReversedTopo, MinimalTopo )
from mininet.topolib import TreeTopo, TorusTopo
from mininet.util import customClass, specialClass, splitArgs
from mininet.util import buildTopo
from functools import partial
from mininet.examples.cluster import ( MininetCluster, RemoteHost,
RemoteOVSSwitch, RemoteLink,
SwitchBinPlacer, RandomPlacer,
ClusterCleanup )
from mininet.examples.clustercli import ClusterCLI
from optparse import OptionParser
import os
from tkMessageBox import showerror
import tkFont
import tkFileDialog
import tkSimpleDialog
import json
from distutils.version import StrictVersion
from mininet.term import makeTerm, cleanUpScreens
from mininet.net import Mininet, VERSION
from mininet.util import quietRun
import random
from threading import Thread
from Tkinter import *
import time
from cmath import pi
from math import atan2, sin, cos
from PIL import Image, ImageDraw
from PIL import ImageTk as itk
import Queue
from collections import OrderedDict
MININET_VERSION = re.sub(r'[^\d\.]', '', VERSION)
if StrictVersion(MININET_VERSION) > StrictVersion('2.0'):
from mininet.node import IVSSwitch
MININAM_VERSION = "1.0.1"
# Fix setuptools' evil madness, and open up (more?) security holes
if 'PYTHONPATH' in os.environ:
sys.path = os.environ[ 'PYTHONPATH' ].split( ':' ) + sys.path
Eth_Protocols = {'8':'IP', '1544':'ARP', '56710':'IPv6'}
IP_Protocols = {'1':'ICMP', '6':'TCP', '17':'UDP'}
TOPODEF = 'minimal'
TOPOS = {'minimal': MinimalTopo,
'linear': LinearTopo,
'reversed': SingleSwitchReversedTopo,
'single': SingleSwitchTopo,
'tree': TreeTopo,
'torus': TorusTopo}
SWITCHDEF = 'default'
SWITCHES = {'user': UserSwitch,
'ovs': OVSSwitch,
'ovsbr': OVSBridge,
# Keep ovsk for compatibility with 2.0
'ovsk': OVSSwitch,
'ivs': IVSSwitch,
'lxbr': LinuxBridge,
'default': OVSSwitch}
SWITCHES_TYPES = [switch.__name__ for switch in SWITCHES.values()]
HOSTDEF = 'proc'
HOSTS = {'proc': Host,
'rt': specialClass(CPULimitedHost, defaults=dict(sched='rt')),
'cfs': specialClass(CPULimitedHost, defaults=dict(sched='cfs'))}
HOSTS_TYPES = ['Host', 'CPULimitedHost']
CONTROLLERDEF = 'default'
CONTROLLERS = {'ref': Controller,
'ovsc': OVSController,
'nox': NOX,
'remote': RemoteController,
'ryu': Ryu,
'default': DefaultController, # Note: replaced below
'none': NullController}
CONTROLLERS_TYPES = [ctrlr.__name__ for ctrlr in CONTROLLERS.values()]
LINKDEF = 'default'
LINKS = {'default': Link,
'tc': TCLink,
'tcu': TCULink,
'ovs': OVSLink}
LINKS_TYPES = ['Link', 'TCLink', 'OVSLink', 'TCULink']
LEGACY_TYPES = ['LegacyRouter', 'LinuxRouter', 'LegacySwitch']
FLOWTIMEDEF = 'Fast'
FLOWTIME = OrderedDict([('Very Slow', 40000),('Slow',20000),('Fast', 5000), ('Very Fast', 1000), ('Real Time', 1)])
LinkTime = 0.1
def version( *_args ):
"Print Mininet and MiniNAM version and exit"
print "Mininet: %s" % MININET_VERSION
print "MiniNAM: %s" % MININAM_VERSION
sys.exit()
def packetParser(packet):
PacketInfo = {}
PacketInfo['eth_protocol'] = None
PacketInfo['srcMAC'] = None
PacketInfo['dstMAC'] = None
PacketInfo['s_addr'] = None
PacketInfo['d_addr'] = None
PacketInfo['ip_protocol'] = None
PacketInfo['ttl'] = None
PacketInfo['source_port'] = None
PacketInfo['dest_port'] = None
PacketInfo['sequence'] = None
PacketInfo['data'] = None
PacketInfo['icmp_type'] = None
PacketInfo['code'] = None
PacketInfo['checksum'] = None
PacketInfo['length'] = None
PacketInfo['protocol_type'] = None
try:
# parse ethernet header
eth_length = 14
eth_header = packet[:eth_length]
eth = unpack('!6s6sH', eth_header)
eth_protocol = socket.ntohs(eth[2])
dstMAC = ':'.join('%02x' % ord(b) for b in packet[0:6])
srcMAC = ':'.join('%02x' % ord(b) for b in packet[6:12])
PacketInfo['srcMAC'] = str(srcMAC)
PacketInfo['dstMAC'] = str(dstMAC)
PacketInfo['eth_protocol'] = str(eth_protocol)
# Parse IP packets, IP Protocol number = 8
if eth_protocol == 8:
# Parse IP header
# take first 20 characters for the ip header
ip_header = packet[eth_length:20 + eth_length]
# now unpack them
iph = unpack('!BBHHHBBH4s4s', ip_header)
version_ihl = iph[0]
ihl = version_ihl & 0xF
iph_length = ihl * 4
ttl = iph[5]
protocol = iph[6]
s_addr = socket.inet_ntoa(iph[8]);
d_addr = socket.inet_ntoa(iph[9]);
PacketInfo['s_addr'] = s_addr
PacketInfo['d_addr'] = d_addr
PacketInfo['ip_protocol'] = str(protocol)
PacketInfo['ttl'] = str(ttl)
# TCP protocol
if protocol == 6:
t = iph_length + eth_length
tcp_header = packet[t:t + 32]
# now unpack them
tcph = unpack('!HHLLBBHHHBBBBLL', tcp_header)
source_port = tcph[0]
dest_port = tcph[1]
sequence = tcph[2]
acknowledgement = tcph[3]
doff_reserved = tcph[4]
tcph_length = doff_reserved >> 4
TSVal = tcph[13]
h_size = eth_length + iph_length + tcph_length * 4
# get data from the packet
data = packet[h_size:]
PacketInfo['source_port'] = source_port
PacketInfo['dest_port'] = dest_port
PacketInfo['sequence'] = sequence
PacketInfo['acknowledgement'] = acknowledgement
PacketInfo['TSVal'] = TSVal
PacketInfo['data'] = data
# ICMP Packets
elif protocol == 1:
u = iph_length + eth_length
icmph_length = 4
icmp_header = packet[u:u + 4]
# now unpack them
icmph = unpack('!BBH', icmp_header)
icmp_type = icmph[0]
code = icmph[1]
checksum = icmph[2]
h_size = eth_length + iph_length + icmph_length
data_size = len(packet) - h_size
# get data from the packet
data = packet[h_size:]
PacketInfo['icmp_type'] = str(icmp_type)
PacketInfo['code'] = str(code)
PacketInfo['checksum'] = str(checksum)
PacketInfo['data'] = data
# UDP packets
elif protocol == 17:
u = iph_length + eth_length
udph_length = 8
udp_header = packet[u:u + 8]
# now unpack them
udph = unpack('!HHHH', udp_header)
source_port = udph[0]
dest_port = udph[1]
length = udph[2]
checksum = udph[3]
h_size = eth_length + iph_length + udph_length
data_size = len(packet) - h_size
# get data from the packet
data = packet[h_size:]
PacketInfo['source_port'] = source_port
PacketInfo['dest_port'] = dest_port
PacketInfo['length'] = length
PacketInfo['checksum'] = checksum
PacketInfo['data'] = data
# Other IP packet like IGMP can be parsed here.
else:
pass
#Parse ARP packets
elif eth_protocol == 1544:
arp_header = packet[14:42]
arph = unpack("!2sH1s1s2s6s4s6s4s", arp_header)
s_addr = socket.inet_ntoa(arph[6])
d_addr = socket.inet_ntoa(arph[8])
protocol_type = arph[1]
PacketInfo['s_addr'] = str(s_addr)
PacketInfo['d_addr'] = str(d_addr)
PacketInfo['protocol_type'] = protocol_type
#Other EthPackets like IPv6 can be parsed here.
else:
pass
return PacketInfo
except:
return PacketInfo
class PrefsDialog(tkSimpleDialog.Dialog):
"Preferences dialog"
def __init__(self, parent, title, prefDefaults):
self.prefValues = prefDefaults
tkSimpleDialog.Dialog.__init__(self, parent, title)
def body(self, master):
"Create dialog body"
self.rootFrame = master
# Field for displaying traffic flows
Label(self.rootFrame, text="Display traffic flows in the network").grid(row=0, sticky=W)
self.displayFlows = IntVar()
self.cdisplayFlows = Checkbutton(self.rootFrame, variable=self.displayFlows)
self.cdisplayFlows.grid(row=0, column=1, sticky=W)
if self.prefValues['displayFlows'] == 0:
self.cdisplayFlows.deselect()
else:
self.cdisplayFlows.select()
# Field for displaying hosts along with network topology
Label(self.rootFrame, text="Display hosts in the network:").grid(row=1, sticky=W)
self.displayHosts = IntVar()
self.cdisplayHosts = Checkbutton(self.rootFrame, variable=self.displayHosts)
self.cdisplayHosts.grid(row=1, column=1, sticky=W)
if self.prefValues['displayHosts'] == 0:
self.cdisplayHosts.deselect()
else:
self.cdisplayHosts.select()
# Field for Packet Flow Speed
Label(self.rootFrame, text="Speed of Packet Flow").grid(row=2, sticky=W)
self.flowTime = StringVar(self.rootFrame)
self.flowTime.set(FLOWTIME.keys()[FLOWTIME.values().index(self.prefValues['flowTime'])])
self.flowTimeMenu = OptionMenu(self.rootFrame, self.flowTime, *FLOWTIME.keys())
self.flowTimeMenu.grid(row=2, column=1, sticky=W)
# Field for Node Colors
Label(self.rootFrame, text="Color Code Packets By:").grid(row=3, sticky=W)
self.nodeColorsVar = StringVar(self.rootFrame)
self.nodeColorsOption = OptionMenu(self.rootFrame, self.nodeColorsVar, "Source", "Destination", "None")
self.nodeColorsOption.grid(row=3, column=1, sticky=W)
self.nodeColorsVar.set(self.prefValues['nodeColors'])
# Selection for color of packet type
self.typeColorsFrame= LabelFrame(self.rootFrame, text='Colors for Packet Types', padx=5, pady=5)
self.typeColorsFrame.grid(row=4, column=0, columnspan=2, sticky=EW)
for i in range(3):
self.typeColorsFrame.columnconfigure(i, weight=1)
self.typeColors = self.prefValues['typeColors']
# Selection of color for ARP
Label(self.typeColorsFrame, text="ARP").grid(row=0, column=0, sticky=W)
self.ARPColor = StringVar(self.typeColorsFrame)
self.ARPColor.set(self.typeColors["ARP"])
self.ARPColorMenu = OptionMenu(self.typeColorsFrame, self.ARPColor, "None", "Red", "Green", "Blue", "Purple")
self.ARPColorMenu.grid(row=1, column=0, sticky=W)
# Selection of color for TCP
Label(self.typeColorsFrame, text="TCP").grid(row=0, column=1, sticky=W)
self.TCPColor = StringVar(self.typeColorsFrame)
self.TCPColor.set(self.typeColors["TCP"])
self.TCPColorMenu = OptionMenu(self.typeColorsFrame, self.TCPColor, "None", "Red", "Green", "Blue", "Purple")
self.TCPColorMenu.grid(row=1, column=1, sticky=W)
# Selection of color for ICMP
Label(self.typeColorsFrame, text="ICMP").grid(row=0, column=2, sticky=W)
self.ICMPColor = StringVar(self.typeColorsFrame)
self.ICMPColor.set(self.typeColors["ICMP"])
self.ICMPColorMenu = OptionMenu(self.typeColorsFrame, self.ICMPColor, "None", "Red", "Green", "Blue", "Purple")
self.ICMPColorMenu.grid(row=1, column=2, sticky=W)
# Selection of color for UDP
Label(self.typeColorsFrame, text="UDP").grid(row=0, column=3, sticky=W)
self.UDPColor = StringVar(self.typeColorsFrame)
self.UDPColor.set(self.typeColors["UDP"])
self.UDPColorMenu = OptionMenu(self.typeColorsFrame, self.UDPColor, "None", "Red", "Green", "Blue", "Purple")
self.UDPColorMenu.grid(row=1, column=3, sticky=W)
# Selection of terminal type
Label(self.rootFrame, text="Default Terminal:").grid(row=5, sticky=W)
self.terminalVar = StringVar(self.rootFrame)
self.terminalOption = OptionMenu(self.rootFrame, self.terminalVar, "xterm", "gterm")
self.terminalOption.grid(row=5, column=1, sticky=W)
terminalType = self.prefValues['terminalType']
self.terminalVar.set(terminalType)
# Field for CLI
Label(self.rootFrame, text="Start CLI:").grid(row=6, sticky=W)
self.cliStart = IntVar()
self.cliButton = Checkbutton(self.rootFrame, variable=self.cliStart)
self.cliButton.grid(row=6, column=1, sticky=W)
if self.prefValues['startCLI'] == 0:
self.cliButton.deselect()
else:
self.cliButton.select()
# Field for showing IP Packets
Label(self.rootFrame, text="Show IP address on packets:").grid(row=7, sticky=W)
self.showAddrVar = StringVar(self.rootFrame)
self.showaddrOption = OptionMenu(self.rootFrame, self.showAddrVar, "Source", "Destination", "None")
self.showaddrOption.grid(row=7, column=1, sticky=W)
self.showAddrVar.set(self.prefValues['showAddr'])
# Field for showing nodeStats
Label(self.rootFrame, text="Show Node Statistics Box:").grid(row=8, sticky=W)
self.showNodeStats = IntVar()
self.cshowNodeStats = Checkbutton(self.rootFrame, variable=self.showNodeStats)
self.cshowNodeStats.grid(row=8, column=1, sticky=W)
if self.prefValues['showNodeStats'] == 0:
self.cshowNodeStats.deselect()
else:
self.cshowNodeStats.select()
# Field for identifying packets belonging to same flow
Label(self.rootFrame, text="Identify packets in the same flow and display in order:").grid(row=9, sticky=W)
self.identifyFlows = IntVar()
self.cidentifyFlows = Checkbutton(self.rootFrame, variable=self.identifyFlows)
self.cidentifyFlows.grid(row=9, column=1, sticky=W)
if self.prefValues['identifyFlows'] == 0:
self.cidentifyFlows.deselect()
else:
self.cidentifyFlows.select()
def apply(self):
flowTime = FLOWTIME[self.flowTime.get()]
self.typeColors['ARP'] = str(self.ARPColor.get())
self.typeColors['TCP'] = str(self.TCPColor.get())
self.typeColors['ICMP'] = str(self.ICMPColor.get())
self.typeColors['UDP'] = str(self.UDPColor.get())
typeColors = self.typeColors
self.result = {'displayFlows': self.displayFlows.get(),
'displayHosts': self.displayHosts.get(),
'flowTime': flowTime,
'nodeColors': self.nodeColorsVar.get(),
'typeColors': typeColors,
'terminalType': self.terminalVar.get(),
'startCLI': self.cliStart.get(),
'showAddr': self.showAddrVar.get(),
'showNodeStats': self.showNodeStats.get(),
'identifyFlows': self.identifyFlows.get()
}
class FiltersDialog(tkSimpleDialog.Dialog):
"Filters dialog"
def __init__(self, parent, title, filterDefaults):
self.filterValues = filterDefaults
tkSimpleDialog.Dialog.__init__(self, parent, title)
def body(self, master):
"Create dialog body"
self.rootFrame = master
# Field for Show Packet Types
Label(self.rootFrame, text="Show Packet Types:").grid(row=0, sticky=E)
self.showPackets = Text(self.rootFrame, height = 1)
self.showPackets.grid(row=0, column=1)
showPackets = self.filterValues['showPackets']
for item in showPackets:
self.showPackets.insert(END, item + ', ')
# Field for Hide Packet Types
Label(self.rootFrame, text="Hide Packet Types:").grid(row=2, sticky=E)
self.hidePackets = Text(self.rootFrame, height = 1)
self.hidePackets.grid(row=2, column=1)
hidePackets = self.filterValues['hidePackets']
for item in hidePackets:
self.hidePackets.insert(END, item + ', ')
# Field for Hide Packets From IP or MAC
Label(self.rootFrame, text="Hide Packets from IP or MAC:").grid(row=3, sticky=E)
self.hideFromIPMAC = Text(self.rootFrame, height = 1)
self.hideFromIPMAC.grid(row=3, column=1)
hideFromIPMAC = self.filterValues['hideFromIPMAC']
for item in hideFromIPMAC:
self.hideFromIPMAC.insert(END, item + ', ')
# Field for Hide Packet To IP or MAC
Label(self.rootFrame, text="Hide Packets To IP or MAC:").grid(row=4, sticky=E)
self.hideToIPMAC = Text(self.rootFrame, height = 1)
self.hideToIPMAC.grid(row=4, column=1)
hideToIPMAC = self.filterValues['hideToIPMAC']
for item in hideToIPMAC:
self.hideToIPMAC.insert(END, item + ', ')
# initial focus
return self.showPackets
def apply(self):
showPackets = str(self.showPackets.get("1.0",'end-1c')).replace(' ', '').replace('\n', '').replace('\r', '').split(',')
hidePackets = str(self.hidePackets.get("1.0",'end-1c')).replace(' ', '').replace('\n', '').replace('\r', '').split(',')
hideFromIPMAC = str(self.hideFromIPMAC.get("1.0",'end-1c')).replace(' ', '').replace('\n', '').replace('\r', '').split(',')
hideToIPMAC = str(self.hideToIPMAC.get("1.0",'end-1c')).replace(' ', '').replace('\n', '').replace('\r', '').split(',')
# Removing empty items from lists
showPackets = filter(None, showPackets)
hidePackets = filter(None, hidePackets)
hideFromIPMAC = filter(None, hideFromIPMAC)
hideToIPMAC = filter(None, hideToIPMAC)
self.result= {
'showPackets': showPackets,
'hidePackets': hidePackets,
'hideFromIPMAC': hideFromIPMAC,
'hideToIPMAC': hideToIPMAC
}
@staticmethod
def getOvsVersion():
"Return OVS version"
outp = quietRun("ovs-vsctl show")
r = r'ovs_version: "(.*)"'
m = re.search(r, outp)
if m is None:
print 'Version check failed'
return None
else:
print 'Open vSwitch version is '+m.group(1)
return m.group(1)
class NodeStats(object):
def __init__(self, widget):
self.widget = widget
self.tipwindow = None
self.id = None
self.x = self.y = 0
def showtip(self, text):
"Display text in nodeStats window"
self.text = text
if self.tipwindow or not self.text:
return
x, y, _cx, cy = self.widget.bbox("insert")
x = x + self.widget.winfo_rootx() + 27
y = y + cy + self.widget.winfo_rooty() +27
self.tipwindow = tw = Toplevel(self.widget)
tw.wm_overrideredirect(1)
tw.wm_geometry("+%d+%d" % (x, y))
try:
tw.tk.call("::tk::unsupported::MacWindowStyle",
"style", tw._w,
"help", "noActivates")
except TclError:
pass
label = Label(tw, text=self.text, justify=LEFT,
background="#ffffe0", relief=SOLID, borderwidth=1,
font=("tahoma", "8", "normal"))
label.pack(ipadx=1)
def hidetip(self):
tw = self.tipwindow
self.tipwindow = None
if tw:
tw.destroy()
class MiniNAM( Frame ):
"A realtime network animator for Mininet."
def __init__( self, parent=None, cheight=600, cwidth=1000 , net= None, locations={}):
Frame.__init__( self, parent )
self.action = None
#Defaults for preferences and filters
self.appPrefs={
'displayFlows': 1,
'displayHosts': 1,
'flowTime': FLOWTIME[FLOWTIMEDEF],
'nodeColors': 'Source',
'typeColors': {'ARP': 'Red', 'TCP': 'Green', 'ICMP': 'Blue', 'UDP': 'Green'},
'startCLI': 1,
'terminalType': 'xterm',
'showAddr': 'None',
'showNodeStats': 0,
'identifyFlows': 1
}
self.appFilters={
'showPackets': ['TCP', 'UDP', 'ICMP'], #ARP?
'hidePackets': ['IPv6'],
'hideFromIPMAC': ['0.0.0.0', '255.255.255.255'],
'hideToIPMAC': ['0.0.0.0', '255.255.255.255']
}
# Style
self.fixedFont = tkFont.Font ( family="DejaVu Sans Mono", size="14" )
self.font = ( 'Geneva', 9 )
self.smallFont = ( 'Geneva', 7 )
self.bg = 'white'
#If more hosts than this list then random colors are assigned to remaining hosts
self.HOST_COLORS = ['#E57300', '#FF66B2', '#fa0004', '#b1b106', '#957aff', '#FF00FF', '#2f90d0', '#818c8d',
'#A93226', '#1b2ef8', '#3ef979', '#7c2ff9']
self.Controller_Color = '#9D9D9D'
self.images = miniImages()
# Title
self.appName = 'MiniNAM'
self.top = self.winfo_toplevel()
self.top.title( self.appName )
# Menu bar
self.createMenubar()
# Editing canvas
self.cheight, self.cwidth = cheight, cwidth
self.cframe, self.canvas = self.createCanvas()
# Layout
self.cframe.grid( column=1, row=0 )
self.columnconfigure( 1, weight=1 )
self.rowconfigure( 0, weight=1 )
self.pack( expand=True, fill='both' )
# Info boxes
self.aboutBox = None
self.infoBox = None
# Initialize node data
self.nodeBindings = self.createNodeBindings()
self.nodePrefixes = { 'LegacyRouter': 'r', 'LegacySwitch': 's', 'Switch': 's', 'Host': 'h' , 'Controller': 'c'}
self.widgetToItem = {}
self.itemToWidget = {}
self.Nodes = []
# intfdata is [{"node":"-1", 'color': None, "type":"-1", "interface": "-1", "mac":"-1", "ip": "-1", "dgw":"-1", "link": "-1", "TXP":0, "RXP":0, "TXB":0, "RXB":0}]
self.intfData = []
# Initialize link tool
self.link = self.linkWidget = None
# Selection support
self.selection = None
# Keyboard and Popup bindings
self.bind( '<Control-q>', lambda event: self.quit() )
self.focus()
self.canvas.bind('<Button-1>', self.setFocus)
self.hostPopup = Menu(self.top, tearoff=0, takefocus=1)
self.hostPopup.add_command(label='Host Options', font=self.font)
self.hostPopup.add_separator()
self.hostPopup.add_command(label='Terminal', font=self.font, command=self.xterm )
self.hostPopup.bind("<FocusOut>", self.popupFocusOut)
self.legacyRouterPopup = Menu(self.top, tearoff=0, takefocus=1)
self.legacyRouterPopup.add_command(label='Router Options', font=self.font)
self.legacyRouterPopup.add_separator()
self.legacyRouterPopup.add_command(label='Terminal', font=self.font, command=self.xterm )
self.legacyRouterPopup.bind("<FocusOut>", self.popupFocusOut)
self.switchPopup = Menu(self.top, tearoff=0, takefocus=1)
self.switchPopup.add_command(label='Switch Options', font=self.font)
self.switchPopup.add_separator()
self.switchPopup.add_command(label='List bridge details', font=self.font, command=self.listBridge )
self.switchPopup.bind("<FocusOut>", self.popupFocusOut)
self.linkPopup = Menu(self.top, tearoff=0, takefocus=1)
self.linkPopup.add_command(label='Link Options', font=self.font)
self.linkPopup.add_separator()
self.linkPopup.add_command(label='Link Up', font=self.font, command=self.linkUp )
self.linkPopup.add_command(label='Link Down', font=self.font, command=self.linkDown )
self.linkPopup.bind("<FocusOut>", self.popupFocusOut)
# Event handling initalization
self.linkx = self.linky = self.linkItem = None
self.lastSelection = None
# Model initialization
self.packetImage = []
self.flowQueues = {}
self.PLACEMENT = {'block': SwitchBinPlacer, 'random': RandomPlacer}
self.links = {}
self.cli = None
#Setting up values when MiniNAM class is called from a script
self.nodelocations = locations
self.options = None
self.args = None
self.validate = None
self.net = net
self.active = True
#Setup network if MiniNAM is called from CLI
if self.net is None:
self.parseArgs()
self.setup()
self.begin()
if self.options.test == 'cli':
self.startCLI()
#Exit if network wasn't created properly
if self.net is None:
error('Network does not exist. Do not use net(stop) in your script if you want GUI to load.')
sys.exit()
#Start siniffing packets on Mininet interfaces
self.sniff = Thread( target=self.sniff )
self.sniff.daemon = True
self.sniff.start()
#Start CLI thread if requested
if self.appPrefs['startCLI'] == 1:
self.startCLI()
#Gather topology info and create nodes
self.TopoInfo()
self.createNodes()
# Place window at bottom
self.top.geometry("%dx%d%+d%+d" % (self.cwidth, self.cheight, 1, 1000))
# Close window gracefully
Wm.wm_protocol( self.top, name='WM_DELETE_WINDOW', func=self.quit )
#Set the logo for MiniNAM
logo = self.images['Logo']
self.top.tk.call('wm', 'iconphoto', self.top._w, logo)
# Arguments and Network
def custom( self, _option, _opt_str, value, _parser ):
"Parse custom file and add params."
files = []
if os.path.isfile( value ):
# Accept any single file (including those with commas)
files.append( value )
else:
# Accept a comma-separated list of filenames
files += value.split(',')
for fileName in files:
customs = {}
if os.path.isfile( fileName ):
execfile( fileName, customs, customs )
for name, val in customs.iteritems():
self.setCustom( name, val )
else:
raise Exception( 'could not find custom file: %s' % fileName )
def setCustom( self, name, value ):
"Set custom parameters for Mininet."
if name.upper() == 'NET':
info('*** Loading network from custom file ***\n')
self.net = value
elif name in ( 'topos', 'switches', 'hosts', 'controllers' ):
# Update dictionaries
param = name.upper()
try:
globals()[ param ].update( value )
globals()[str(param + '_TYPES')].append( value.keys()[0])
except:
pass
elif name == 'validate':
# Add custom validate function
self.validate = value
elif name == 'locations':
self.nodelocations = value
else:
# Add or modify global variable or class
globals()[ name ] = value
def configs( self, _option, _opt_str, value, _parser ):
"Load custom configs."
fileName = value
if not os.path.isfile(fileName):
print 'Could not find config file: %s. Loading default preferences and filters.' % fileName
return
f = open(fileName, 'r')
loadedPrefs = self.convertJsonUnicode(json.load(f))
# Load application preferences
if 'preferences' in loadedPrefs:
self.appPrefs = dict(self.appPrefs.items() + loadedPrefs['preferences'].items())
# Load application filters
if 'filters' in loadedPrefs:
self.appFilters = dict(self.appFilters.items() + loadedPrefs['filters'].items())
f.close()
def setNat( self, _option, opt_str, value, parser ):
"Set NAT option(s)"
assert self # satisfy pylint
parser.values.nat = True
# first arg, first char != '-'
if parser.rargs and parser.rargs[ 0 ][ 0 ] != '-':
value = parser.rargs.pop( 0 )
_, args, kwargs = splitArgs( opt_str + ',' + value )
parser.values.nat_args = args
parser.values.nat_kwargs = kwargs
else:
parser.values.nat_args = []
parser.values.nat_kwargs = {}
def addDictOption(self, opts, choicesDict, default, name, **kwargs):
"""Convenience function to add choices dicts to OptionParser.
opts: OptionParser instance
choicesDict: dictionary of valid choices, must include default
default: default choice key
name: long option name
kwargs: additional arguments to add_option"""
helpStr = ('|'.join(sorted(choicesDict.keys())) +
'[,param=value...]')
helpList = ['%s=%s' % (k, v.__name__)
for k, v in choicesDict.items()]
helpStr += ' ' + (' '.join(helpList))
params = dict(type='string', default=default, help=helpStr)
params.update(**kwargs)
opts.add_option('--' + name, **params)
def parseArgs( self ):
"""Parse command-line args and return options object.
returns: opts parse options dict"""
desc = ( "The %prog utility creates Mininet network from the\n"
"command line, loads a GUI with the created topology and\n"
"displays any network traffic generated." )
usage = ( '%prog [options]\n'
'(type %prog -h for details)' )
opts = OptionParser( description=desc, usage=usage )
opts.add_option('--config', action='callback',
callback=self.configs,
type='string',
help='load custom preferences from .config file'
)
opts.add_option('--custom', action='callback',
callback=self.custom,
type='string',
help='read custom classes, params or network (with net as name) from .py file(s)'
)
self.addDictOption( opts, SWITCHES, SWITCHDEF, 'switch' )
self.addDictOption( opts, HOSTS, HOSTDEF, 'host' )
self.addDictOption( opts, CONTROLLERS, [], 'controller', action='append' )
self.addDictOption( opts, LINKS, LINKDEF, 'link' )
self.addDictOption( opts, TOPOS, TOPODEF, 'topo' )
opts.add_option( '--clean', '-c', action='store_true',
default=False, help='clean and exit' )
# optional tests to run
TESTS = ['cli', 'build', 'pingall', 'pingpair', 'iperf', 'all', 'iperfudp', 'none']
opts.add_option( '--test', type='choice', choices=TESTS,
default=TESTS[ -1 ],
help='|'.join( TESTS ) )
opts.add_option( '--xterms', '-x', action='store_true',
default=False, help='spawn xterms for each node' )
opts.add_option( '--ipbase', '-i', type='string', default='10.0.0.0/8',
help='base IP address for hosts' )
opts.add_option( '--mac', action='store_true',
default=False, help='automatically set host MACs' )
opts.add_option( '--arp', action='store_true',
default=False, help='set all-pairs ARP entries' )
opts.add_option( '--verbosity', '-v', type='choice',
choices=LEVELS.keys(), default = 'info',
help = '|'.join( LEVELS.keys() ) )
opts.add_option( '--innamespace', action='store_true',
default=False, help='sw and ctrl in namespace?' )
opts.add_option( '--listenport', type='int', default=6634,
help='base port for passive switch listening' )
opts.add_option( '--nolistenport', action='store_true',
default=False, help="don't use passive listening " +
"port")
opts.add_option( '--pre', type='string', default=None,
help='CLI script to run before tests' )
opts.add_option( '--post', type='string', default=None,
help='CLI script to run after tests' )
opts.add_option( '--pin', action='store_true',
default=False, help="pin hosts to CPU cores "
"(requires --host cfs or --host rt)" )
opts.add_option( '--nat', action='callback', callback=self.setNat,
help="adds a NAT to the topology that"
" connects Mininet hosts to the physical network."
" Warning: This may route any traffic on the machine"
" that uses Mininet's"
" IP subnet into the Mininet network."
" If you need to change"
" Mininet's IP subnet, see the --ipbase option." )
opts.add_option( '--version', action='callback', callback=version,
help='prints the version and exits' )
opts.add_option( '--cluster', type='string', default=None,
metavar='server1,server2...',
help=( 'run on multiple servers (experimental!)' ) )
opts.add_option( '--placement', type='choice',
choices=self.PLACEMENT.keys(), default='block',
metavar='block|random',
help=( 'node placement for --cluster '
'(experimental!) ' ) )
self.options, self.args = opts.parse_args()
# We don't accept extra arguments after the options
if self.args:
opts.print_help()
sys.exit()
def setup( self ):
"Setup and validate environment."
lg.setLogLevel( self.options.verbosity )
def begin( self ):
"Create and run mininet."
if self.options.cluster:
servers = self.options.cluster.split( ',' )
for server in servers:
ClusterCleanup.add( server )
if self.options.clean:
cleanup()
sys.exit()
if not self.options.controller:
# Update default based on available controllers
CONTROLLERS[ 'default' ] = findController()
self.options.controller = [ 'default' ]
if not CONTROLLERS[ 'default' ]:
self.options.controller = [ 'none' ]
if self.options.switch == 'default':
info( '*** No default OpenFlow controller found '
'for default switch!\n' )
info( '*** Falling back to OVS Bridge\n' )
self.options.switch = 'ovsbr'
elif self.options.switch not in ( 'ovsbr', 'lxbr' ):
raise Exception( "Could not find a default controller "
"for switch %s" %
self.options.switch )
topo = buildTopo( TOPOS, self.options.topo )
switch = customClass( SWITCHES, self.options.switch )
host = customClass( HOSTS, self.options.host )
controller = [ customClass( CONTROLLERS, c )
for c in self.options.controller ]
if self.options.switch == 'user' and self.options.link == 'default':
# Using TCULink with UserSwitch
# Use link configured correctly for UserSwitch
self.options.link = 'tcu'
link = customClass( LINKS, self.options.link )
if self.validate:
self.validate( self.options )
ipBase = self.options.ipbase
xterms = self.options.xterms
mac = self.options.mac
arp = self.options.arp
pin = self.options.pin
listenPort = None
if not self.options.nolistenport:
listenPort = self.options.listenport
# Handle inNamespace, cluster options
inNamespace = self.options.innamespace
cluster = self.options.cluster
if inNamespace and cluster:
print "Please specify --innamespace OR --cluster"
sys.exit()
Net = MininetWithControlNet if inNamespace else Mininet
if cluster:
warn( '*** WARNING: Experimental cluster mode!\n'
'*** Using RemoteHost, RemoteOVSSwitch, RemoteLink\n' )
host, switch, link = RemoteHost, RemoteOVSSwitch, RemoteLink
Net = partial( MininetCluster, servers=servers,
placement=self.PLACEMENT[ self.options.placement ] )
self.net = Net( topo=topo,
switch=switch, host=host, controller=controller,
link=link,
ipBase=ipBase,
inNamespace=inNamespace,
xterms=xterms, autoSetMacs=mac,
autoStaticArp=arp, autoPinCpus=pin,
listenPort=listenPort )
if self.options.ensure_value( 'nat', False ):
nat = self.net.addNAT( *self.options.nat_args,
**self.options.nat_kwargs )
nat.configDefault()
self.net.start()
def runTest( self ):
cluster = self.options.cluster
cli = ClusterCLI if cluster else CLI
if self.options.pre:
cli(self.net, script=self.options.pre)
test = self.options.test
ALTSPELLING = {'pingall': 'pingAll',
'pingpair': 'pingPair',
'iperfudp': 'iperfUdp',
'iperfUDP': 'iperfUdp'}