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Author SHA1 Message Date
Bob Lantz b9f723becd Optionally install libovs for OVS 2.8+
We also unmask it after installation if we're on systemd.
2019-03-13 21:41:59 -07:00
74 changed files with 555 additions and 1006 deletions
+2 -2
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@@ -1,7 +1,7 @@
**Mininet uses GitHub issues for bug reports and feature requests only.**
Mininet uses GitHub issues for bug reports and feature requests only.
These issues can be viewed at bugs.mininet.org
If you have a question that is not a **bug report** or a **feature request**,
If you have a question that is not a bug report or a feature request,
please use the documentation at docs.mininet.org, the FAQ
at faq.mininet.org, and the mininet-discuss mailing list.
-22
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@@ -1,22 +0,0 @@
name: code-check
on: [push, pull_request]
jobs:
code-check:
name: Mininet Code Check
runs-on: ubuntu-latest
steps:
- name: Set up Python 3.x
uses: actions/setup-python@v2
with:
python-version: 3.x
- name: Check out Mininet source
uses: actions/checkout@v2
- name: Install Mininet code check dependencies
run: |
PYTHON=`which python` util/install.sh -n
python -m pip install pylint==2.4.4
- name: Run code check
run: make codecheck
-51
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@@ -1,51 +0,0 @@
name: mininet-tests
on: [push, pull_request]
jobs:
test:
name: Mininet Tests
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-20.04, ubuntu-18.04, ubuntu-16.04]
python-version: [3.x, 2.x]
steps:
- name: Check out Mininet source
uses: actions/checkout@v2
- name: Set up Python ${{ matrix.python-version }}
uses: actions/setup-python@v2
with:
python-version: ${{ matrix.python-version }}
- name: Install Mininet and base dependencies
run: |
sudo apt-get update -qq
# This seems too slow unfortunately:
# sudo apt-get upgrade -y -qq
PYTHON=`which python` util/install.sh -nv
- name: Sanity test
run: |
export sudo="sudo env PATH=$PATH"
# Verify major python-version number matches python and mininet
export PYVER=`echo ${{ matrix.python-version }} | cut -d . -f 1`
export CHKVER='px import platform; print(platform.python_version())'
python --version |& grep " $PYVER\."
echo $CHKVER | $sudo mn -v output | grep " $PYVER\."
# Newer OvS tries OpenFlow15 which crashes ovsc on ubuntu-20.04
$sudo mn --switch ovs,protocols=OpenFlow13 --test pingall
- name: Install test dependencies
run: |
sudo apt-get install -qq vlan
pip install pexpect
util/install.sh -fw
- name: Run core tests
run: |
export sudo="sudo env PATH=$PATH"
export PYTHON=`which python`
$sudo $PYTHON mininet/test/runner.py -v
- name: Run examples tests (quick)
run: |
export sudo="sudo env PATH=$PATH"
export PYTHON=`which python`
$sudo $PYTHON examples/test/runner.py -v -quick
+2 -8
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@@ -41,16 +41,10 @@ load-plugins=
# can either give multiple identifier separated by comma (,) or put this option
# multiple time (only on the command line, not in the configuration file where
# it should appear only once).
#
# Note: we may want to re-enable some of these at some point, but many of them
# are just style issues rather than errors.
#
disable=pointless-except, invalid-name, super-init-not-called, fixme, star-args,
too-many-instance-attributes, too-few-public-methods,
too-many-instance-attributes, too-few-public-methods, too-many-arguments,
too-many-locals, too-many-public-methods, duplicate-code, bad-whitespace,
locally-disabled, locally-enabled, bad-continuation,
useless-object-inheritance, unnecessary-pass, no-else-return,
no-else-raise, no-else-continue, super-with-arguments
locally-disabled, locally-enabled
# bad-continuation, wrong-import-order
+35
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@@ -0,0 +1,35 @@
language: python
sudo: required
matrix:
include:
- dist: trusty
python: 2.7
env: dist="14.04 LTS trusty"
- dist: trusty
python: 3.6
env: dist="14.04 LTS trusty"
before_install:
- sudo apt-get update -qq
- sudo apt-get install -qq vlan
- PYTHON=`which python` util/install.sh -n
install:
- bash -c "if [ `lsb_release -rs` == '14.04' ]; then make codecheck; fi"
- pip install pexpect || pip3 install pexpect
- util/install.sh -nfvw
script:
- alias sudo="sudo env PATH=$PATH"
- export PYTHON=`which python`
- echo 'px import sys; print(sys.version_info)' | sudo $PYTHON bin/mn -v output
- sudo $PYTHON bin/mn --test pingall
- sudo $PYTHON mininet/test/runner.py -v -quick
- sudo $PYTHON examples/test/runner.py -v -quick
notifications:
email:
on_success: never
# More details: https://docs.travis-ci.com/user/notifications
+1 -30
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@@ -18,63 +18,34 @@ Cody Burkard
Additional Mininet Contributors
Joseph Beshay
M S Vishwanath Bhat
Muhammad Umair Bhatti
Arie Bregman
Tomasz Buchert
Gustavo Pantuza Coelho Pinto
Fernando Cappi
HW Chiu
Ryan Cox
Shaun Crampton
Jason Croft
Hantao Cui
Nirmoy Das
Lenoardo D'avila
Giuseppe Di Lena
David Erickson
Juan Gascon
Glen Gibb
Andrew Ferguson
Eder Leao Fernandes
Julian Filter
Ben Frankel
Tim Gates
Gregory Gee
Jon Hall
Roan Huang
Vitaly Ivanov
Theo Jepsen
Mathieu Jadin
Babis Kaidos
Rich Lane
Rémy Léone
Xiaozhou Li
Zi Shen Lim
David Mahler
Felix Maurer
Murphy McCauley
Alex Moijes
Felician Nemeth
José Pedro Oliveira
James Page
Gustavo Pantuza Coelho Pinto
Ramon Pujianto
Stempha Reiter
Damien Saucez
Shan Sikdar
Angad Singh
Piyush Srivastava
Ed Swierk
Darshan Thaker
Olivier Tl]ilmans
Niels van Adrichem
Brad Walker
Andreas Wundsam
Vikas Yadav
Isaku Yamahata
Baohua Yang
Zhuo
Thanks also to everyone who has submitted issues and pull
requests on github, and to our friendly mininet-discuss
+24 -63
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@@ -2,7 +2,7 @@
Mininet Installation/Configuration Notes
----------------------------------------
Mininet 2.3.0b2
Mininet 2.3.0d4
---
The supported installation methods for Mininet are 1) using a
@@ -32,21 +32,19 @@ like to contribute an installation script, we would welcome it!)
2. Next-easiest option: use our Ubuntu package!
To install Mininet itself (i.e. `mn` and the Python API) on Ubuntu
16.04+:
12.10+:
sudo apt-get install mininet
Note: this may install an older version of Mininet which may not
support Python 3. If you would like the latest version of Mininet,
consider installing from source as described in the next section.
Note: if you are upgrading from an older version of Mininet, make
sure you remove the old OVS from `/usr/local`:
sudo rm /usr/local/bin/ovs*
sudo rm /usr/local/sbin/ovs*
3. Native installation from source
If you are running Ubuntu, Debian, or Fedora, you may be able to use
our handy `install.sh` script, which is in `util/`. Please read the
following sections first.
3.1. Obtaining the Mininet source code
3.1. Native installation from source on Ubuntu 12.04+
If you're reading this, you've probably already done so, but the
command to download the Mininet source code is:
@@ -54,9 +52,8 @@ like to contribute an installation script, we would welcome it!)
git clone git://github.com/mininet/mininet.git
Note that the above git command will check out the latest and greatest
Mininet (which we recommend!) If you want to run the last
tagged/released version of Mininet, you can look at the release tags
using
Mininet (which we recommend!) If you want to run the last tagged/released
version of Mininet, you can look at the release tags using
cd mininet
git tag
@@ -67,38 +64,21 @@ like to contribute an installation script, we would welcome it!)
where <release tag> is the release you want to check out.
3.1.1 *CAUTION: USE AT YOUR OWN RISK!*
If you are running Ubuntu, Debian, or Fedora, you may be able to use
our handy `install.sh` script, which is in `util/`.
`install.sh` can be a bit intrusive and may possibly damage your OS
*WARNING: USE AT YOUR OWN RISK!*
`install.sh` is a bit intrusive and may possibly damage your OS
and/or home directory, by creating/modifying several directories
such as `mininet`, `openflow`, `oftest`, `pox`, etc.. We recommend
trying it in a VM before trying it on a system you use from day to
day.
trying it in a VM before trying it on a system you use from day to day.
Although we hope it won't do anything completely terrible, you may
want to look at the script before you run it, and you should make
sure your system and home directory are backed up just in case!
You can change the directory where the dependencies are installed
using the -s <directory> flag.
util/install.sh -s <directory> ...
3.1.2 Running `install.sh`
Installing a "minimal" version of Mininet with Open vSwitch should
be reasonably non-perturbing since it should not create directories
for other tools:
util/install.sh -nv
Note this will not install a controller, so you will have to either
install your own controller, or use a switch such OVSBridge that does
not require a controller:
sudo mn --switch ovsbr --test pingall
To install Mininet itself, the OpenFlow reference controller, and
To install Mininet itself, the OpenFlow reference implementation, and
Open vSwitch, you may use:
util/install.sh -fnv
@@ -108,27 +88,6 @@ like to contribute an installation script, we would welcome it!)
sudo mn --test pingall
3.1.3 Python 3 and Python 2 support
Mininet supports Python 3 and Python 2. By default, `install.sh`
will use whatever `python` is on your system. To specify a
specific version of Pythonm, you can set the PYTHON environment
variable:
PYTHON=python3 util/install.sh -fnv
You can install Mininet for both Python 3 and Python 2:
PYTHON=python2 util/install.sh -fnv
PYTHON=python3 util/install.sh -n
Whichever version was installed last will be the default for `mn`.
As long as Mininet is installed for the appropriate version of
Python, you can run it using that versinon of Python:
python3 `which mn`
python2 `which mn`
To install ALL of the software which we use for OpenFlow tutorials,
including POX, the OpenFlow WireShark dissector, the `oftest`
framework, and other potentially useful software, you may use:
@@ -137,9 +96,12 @@ like to contribute an installation script, we would welcome it!)
This takes about 4 minutes on our test system.
3.2. Native installation from source on Fedora 18+.
You can change the directory where the dependencies are installed using
the -s <directory> flag.
*This may be out of date.*
util/install.sh -s <directory> -a
3.2. Native installation from source on Fedora 18+.
As root execute the following operations:
@@ -193,8 +155,7 @@ like to contribute an installation script, we would welcome it!)
Although we don't support other Linux distributions directly, it
should be possible to install and run Mininet with some degree of
manual effort. People have even gotten `mn --switch user` to run
in a ChromeOS container.
manual effort.
In general, you must have:
@@ -213,6 +174,6 @@ like to contribute an installation script, we would welcome it!)
Good luck!
Mininet Developers
Mininet Team
---
+2 -2
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@@ -1,6 +1,6 @@
Mininet 2.3.0b2 License
Mininet 2.3.0d4 License
Copyright (c) 2013-2020 Open Networking Foundation
Copyright (c) 2013-2018 Open Networking Laboratory
Copyright (c) 2009-2012 Bob Lantz and The Board of Trustees of
The Leland Stanford Junior University
+4 -5
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@@ -8,13 +8,12 @@ BIN = $(MN)
PYSRC = $(MININET) $(TEST) $(EXAMPLES) $(BIN)
MNEXEC = mnexec
MANPAGES = mn.1 mnexec.1
P8IGN = E251,E201,E302,E202,E126,E127,E203,E226,E402,W504,W503,E731
P8IGN = E251,E201,E302,E202,E126,E127,E203,E226
PREFIX ?= /usr
BINDIR ?= $(PREFIX)/bin
MANDIR ?= $(PREFIX)/share/man/man1
DOCDIRS = doc/html doc/latex
PDF = doc/latex/refman.pdf
CC ?= cc
CFLAGS += -Wall -Wextra
@@ -47,7 +46,7 @@ slowtest: $(MININET)
mininet/examples/test/runner.py -v
mnexec: mnexec.c $(MN) mininet/net.py
$(CC) $(CFLAGS) $(LDFLAGS) -DVERSION=\"`PYTHONPATH=. $(PYMN) --version`\" $< -o $@
cc $(CFLAGS) $(LDFLAGS) -DVERSION=\"`PYTHONPATH=. $(PYMN) --version`\" $< -o $@
install-mnexec: $(MNEXEC)
install -D $(MNEXEC) $(BINDIR)/$(MNEXEC)
@@ -56,13 +55,13 @@ install-manpages: $(MANPAGES)
install -D -t $(MANDIR) $(MANPAGES)
install: install-mnexec install-manpages
$(PYTHON) -m pip install .
$(PYTHON) setup.py install
develop: $(MNEXEC) $(MANPAGES)
# Perhaps we should link these as well
install $(MNEXEC) $(BINDIR)
install $(MANPAGES) $(MANDIR)
$(PYTHON) -m pip install -e . --no-binary :all:
$(PYTHON) setup.py develop
man: $(MANPAGES)
+20 -23
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@@ -2,10 +2,9 @@ Mininet: Rapid Prototyping for Software Defined Networks
========================================================
*The best way to emulate almost any network on your laptop!*
Mininet 2.3.0b2
[![Build Status][1]](https://github.com/mininet/mininet/actions)
Mininet 2.3.0d4
[![Build Status][1]](https://travis-ci.org/mininet/mininet)
### What is Mininet?
@@ -68,28 +67,27 @@ Mininet includes:
`mn -c`
### Python 3 Support
### New features in this release
- Mininet 2.3.0b2 supports Python 3 and Python 2.
This is primarily a performance improvement and bug fix release.
- You can install both the Python 3 and Python 2 versions of
Mininet side by side, but the most recent installation will
determine which Python version is used by default by `mn`.
- Batch startup has been implemented for Open vSwitch, improving
startup performance.
- You can run `mn` directly with Python 2 or Python 3,
as long as the appropriate version of Mininet is installed,
e.g.
- OVS patch links have been implemented via OVSLink and --link ovs
$ sudo python2 `which mn`
Warning! These links have *serious limitations* compared to
virtual Ethernet pairs: they are not attached to real Linux
interfaces so you cannot use tcpdump or wireshark with them;
they also cannot be used in long chains - we don't recommend more
than 64 OVSLinks, for example --linear,64. However, they can offer
significantly better performance than veth pairs, for certain
configurations.
### Other Enhancements and Information
- You can now easily install Mininet on a Raspberry Pi ;-)
- Support for Ubuntu 20.04 LTS (and 18.04 and 16.04)
- More reliable testing and CI via github actions
- Additional information about this release and previous releases
may be found in the release notes on http://docs.mininet.org.
- Additional information for this release and previous releases
may be found in the release notes on docs.mininet.org
### Installation
@@ -102,8 +100,7 @@ information, including a Mininet walkthrough and an introduction
to the Python API, is available on the
[Mininet Web Site](http://mininet.org).
There is also a wiki which you are encouraged to read and to
contribute to, particularly the Frequently Asked Questions
(FAQ) at http://faq.mininet.org.
contribute to, particularly the Frequently Asked Questions (FAQ.)
### Support
@@ -130,6 +127,6 @@ Best wishes, and we look forward to seeing what you can do with
Mininet to change the networking world!
Bob Lantz
on behalf of the Mininet Contributors
Mininet Core Team
[1]: https://github.com/mininet/mininet/workflows/mininet-tests/badge.svg
[1]: https://travis-ci.org/mininet/mininet.svg?branch=master
+7 -18
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@@ -1,4 +1,4 @@
#!/usr/bin/python
#!/usr/bin/env python
"""
Mininet runner
@@ -11,20 +11,15 @@ Example to pull custom params (topo, switch, etc.) from a file:
sudo mn --custom ~/mininet/custom/custom_example.py
"""
from optparse import OptionParser
import os
import sys
import time
from functools import partial
from optparse import OptionParser # pylint: disable=deprecated-module
from sys import exit # pylint: disable=redefined-builtin
# Fix setuptools' evil madness, and open up (more?) security holes
if 'PYTHONPATH' in os.environ:
sys.path = os.environ[ 'PYTHONPATH' ].split( ':' ) + sys.path
# pylint: disable=wrong-import-position
from mininet.clean import cleanup
import mininet.cli
from mininet.log import lg, LEVELS, info, debug, warn, error, output
@@ -39,7 +34,10 @@ from mininet.link import Link, TCLink, TCULink, OVSLink
from mininet.topo import ( SingleSwitchTopo, LinearTopo,
SingleSwitchReversedTopo, MinimalTopo )
from mininet.topolib import TreeTopo, TorusTopo
from mininet.util import customClass, specialClass, splitArgs, buildTopo
from mininet.util import customClass, specialClass, splitArgs
from mininet.util import buildTopo
from functools import partial
# Experimental! cluster edition prototype
from mininet.examples.cluster import ( MininetCluster, RemoteHost,
@@ -48,7 +46,6 @@ from mininet.examples.cluster import ( MininetCluster, RemoteHost,
ClusterCleanup )
from mininet.examples.clustercli import ClusterCLI
PLACEMENT = { 'block': SwitchBinPlacer, 'random': RandomPlacer }
# built in topologies, created only when run
@@ -110,7 +107,6 @@ def nullTest( _net ):
"Null 'test' (does nothing)"
pass
TESTS.update( all=allTest, none=nullTest, build=nullTest )
# Map to alternate spellings of Mininet() methods
@@ -288,8 +284,6 @@ class MininetRunner( object ):
" 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( '--wait', '-w', action='store_true',
default=False, help='wait for switches to connect' )
opts.add_option( '--cluster', type='string', default=None,
metavar='server1,server2...',
help=( 'run on multiple servers (experimental!)' ) )
@@ -391,14 +385,9 @@ class MininetRunner( object ):
ipBase=opts.ipbase, inNamespace=opts.innamespace,
xterms=opts.xterms, autoSetMacs=opts.mac,
autoStaticArp=opts.arp, autoPinCpus=opts.pin,
waitConnected=opts.wait,
listenPort=opts.listenport )
if opts.ensure_value( 'nat', False ):
with open( '/etc/resolv.conf' ) as f:
if 'nameserver 127.' in f.read():
warn( '*** Warning: loopback address in /etc/resolv.conf '
'may break host DNS over NAT\n')
mn.addNAT( *opts.nat_args, **opts.nat_kwargs ).configDefault()
# --custom files can set CLI or change mininet.cli.CLI
@@ -429,7 +418,7 @@ if __name__ == "__main__":
except KeyboardInterrupt:
info( "\n\nKeyboard Interrupt. Shutting down and cleaning up...\n\n")
cleanup()
except Exception: # pylint: disable=broad-except
except Exception:
# Print exception
type_, val_, trace_ = sys.exc_info()
errorMsg = ( "-"*80 + "\n" +
+3 -4
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@@ -34,14 +34,14 @@ and '/var/run'. It also has a temporary private directory mounted
on '/var/mn'
"""
from functools import partial
from mininet.net import Mininet
from mininet.node import Host
from mininet.cli import CLI
from mininet.topo import SingleSwitchTopo
from mininet.log import setLogLevel, info
from functools import partial
# Sample usage
@@ -53,7 +53,7 @@ def testHostWithPrivateDirs():
'/var/mn' ]
host = partial( Host,
privateDirs=privateDirs )
net = Mininet( topo=topo, host=host, waitConnected=True )
net = Mininet( topo=topo, host=host )
net.start()
directories = [ directory[ 0 ] if isinstance( directory, tuple )
else directory for directory in privateDirs ]
@@ -61,7 +61,6 @@ def testHostWithPrivateDirs():
CLI( net )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
testHostWithPrivateDirs()
+30 -41
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@@ -74,15 +74,6 @@ Things to do:
- hifi support (e.g. delay compensation)
"""
from signal import signal, SIGINT, SIG_IGN
from subprocess import Popen, PIPE, STDOUT
import os
from random import randrange
import sys
import re
from itertools import groupby
from operator import attrgetter
from distutils.version import StrictVersion
from mininet.node import Node, Host, OVSSwitch, Controller
from mininet.link import Link, Intf
@@ -94,7 +85,15 @@ from mininet.examples.clustercli import CLI
from mininet.log import setLogLevel, debug, info, error
from mininet.clean import addCleanupCallback
# pylint: disable=too-many-arguments
from signal import signal, SIGINT, SIG_IGN
from subprocess import Popen, PIPE, STDOUT
import os
from random import randrange
import sys
import re
from itertools import groupby
from operator import attrgetter
from distutils.version import StrictVersion
def findUser():
@@ -262,7 +261,7 @@ class RemoteMixin( object ):
cmd: remote command to run (list)
**params: parameters to Popen()
returns: Popen() object"""
if isinstance( cmd, str):
if type( cmd ) is str:
cmd = cmd.split()
if self.isRemote:
if sudo:
@@ -290,7 +289,6 @@ class RemoteMixin( object ):
def addIntf( self, *args, **kwargs ):
"Override: use RemoteLink.moveIntf"
# kwargs.update( moveIntfFn=RemoteLink.moveIntf )
# pylint: disable=useless-super-delegation
return super( RemoteMixin, self).addIntf( *args, **kwargs )
@@ -327,7 +325,6 @@ class RemoteOVSSwitch( RemoteMixin, OVSSwitch ):
StrictVersion( '1.10' ) )
@classmethod
# pylint: disable=arguments-differ
def batchStartup( cls, switches, **_kwargs ):
"Start up switches in per-server batches"
key = attrgetter( 'server' )
@@ -339,7 +336,6 @@ class RemoteOVSSwitch( RemoteMixin, OVSSwitch ):
return switches
@classmethod
# pylint: disable=arguments-differ
def batchShutdown( cls, switches, **_kwargs ):
"Stop switches in per-server batches"
key = attrgetter( 'server' )
@@ -417,9 +413,8 @@ class RemoteLink( Link ):
# And we can't ssh into this server remotely as 'localhost',
# so try again swappping node1 and node2
if node2.server == 'localhost':
return self.makeTunnel( node1=node2, node2=node1,
intfname1=intfname2, intfname2=intfname1,
addr1=addr2, addr2=addr1 )
return self.makeTunnel( node2, node1, intfname2, intfname1,
addr2, addr1 )
debug( '\n*** Make SSH tunnel ' + node1.server + ':' + intfname1 +
' == ' + node2.server + ':' + intfname2 )
# 1. Create tap interfaces
@@ -531,9 +526,8 @@ class RemoteGRELink( RemoteLink ):
# We should never try to create a tunnel to ourselves!
assert node1.server != node2.server
if node2.server == 'localhost':
return self.makeTunnel( node1=node2, node2=node1,
intfname1=intfname2, intfname2=intfname1,
addr1=addr2, addr2=addr1 )
return self.makeTunnel( node2, node1, intfname2, intfname1,
addr2, addr1 )
IP1, IP2 = node1.serverIP, node2.serverIP
# GRE tunnel needs to be set up with the IP of the local interface
# that connects the remote node, NOT '127.0.0.1' of localhost
@@ -561,7 +555,6 @@ class RemoteGRELink( RemoteLink ):
node.rcmd('ip link set dev %s mtu 1450' % intfname)
if not self.moveIntf(intfname, node):
raise Exception('interface move failed on node %s' % node)
return None # May want to return something useful here
# Some simple placement algorithms for MininetCluster
@@ -596,10 +589,10 @@ class Placer( object ):
class RandomPlacer( Placer ):
"Random placement"
def place( self, node ):
def place( self, nodename ):
"""Random placement function
node: node"""
assert node # please pylint
nodename: node name"""
assert nodename # please pylint
# This may be slow with lots of servers
return self.servers[ randrange( 0, len( self.servers ) ) ]
@@ -613,10 +606,10 @@ class RoundRobinPlacer( Placer ):
Placer.__init__( self, *args, **kwargs )
self.next = 0
def place( self, node ):
def place( self, nodename ):
"""Round-robin placement function
node: node"""
assert node # please pylint
nodename: node name"""
assert nodename # please pylint
# This may be slow with lots of servers
server = self.servers[ self.next ]
self.next = ( self.next + 1 ) % len( self.servers )
@@ -654,7 +647,7 @@ class SwitchBinPlacer( Placer ):
tickets = sum( [ binsizes[ server ] * [ server ]
for server in servers ], [] )
# And assign one ticket to each node
return dict( zip( nodes, tickets ) )
return { node: ticket for node, ticket in zip( nodes, tickets ) }
def calculatePlacement( self ):
"Pre-calculate node placement"
@@ -711,21 +704,21 @@ class HostSwitchBinPlacer( Placer ):
self.cset = frozenset( self.controllers )
self.hind, self.sind, self.cind = 0, 0, 0
def place( self, node ):
def place( self, nodename ):
"""Simple placement algorithm:
place nodes into evenly sized bins"""
# Place nodes into bins
if node in self.hset:
if nodename in self.hset:
server = self.servdict[ self.hind / self.hbin ]
self.hind += 1
elif node in self.sset:
elif nodename in self.sset:
server = self.servdict[ self.sind / self.sbin ]
self.sind += 1
elif node in self.cset:
elif nodename in self.cset:
server = self.servdict[ self.cind / self.cbin ]
self.cind += 1
else:
info( 'warning: unknown node', node )
info( 'warning: unknown node', nodename )
server = self.servdict[ 0 ]
return server
@@ -771,7 +764,6 @@ class MininetCluster( Mininet ):
# Make sure control directory exists
self.cdir = os.environ[ 'HOME' ] + '/.ssh/mn'
errRun( [ 'mkdir', '-p', self.cdir ] )
# pylint: disable=unexpected-keyword-arg
Mininet.__init__( self, *args, **params )
def popen( self, cmd ):
@@ -848,19 +840,18 @@ class MininetCluster( Mininet ):
if cfile:
config.setdefault( 'controlPath', cfile )
# pylint: disable=arguments-differ,signature-differs
def addController( self, *args, **kwargs ):
"Patch to update IP address to global IP address"
controller = Mininet.addController( self, *args, **kwargs )
loopback = '127.0.0.1'
if ( not isinstance( controller, Controller ) or
controller.IP() != loopback ):
return None
return
# Find route to a different server IP address
serverIPs = [ ip for ip in self.serverIP.values()
if ip is not controller.IP() ]
if not serverIPs:
return None # no remote servers - loopback is fine
return # no remote servers - loopback is fine
remoteIP = serverIPs[ 0 ]
# Route should contain 'dev <intfname>'
route = controller.cmd( 'ip route get', remoteIP,
@@ -874,7 +865,6 @@ class MininetCluster( Mininet ):
debug( controller, 'IP address updated to', controller.IP() )
return controller
# pylint: disable=arguments-differ,signature-differs
def buildFromTopo( self, *args, **kwargs ):
"Start network"
info( '*** Placing nodes\n' )
@@ -885,7 +875,7 @@ class MininetCluster( Mininet ):
def testNsTunnels( remote='ubuntu2', link=RemoteGRELink ):
"Test tunnels between nodes in namespaces"
net = Mininet( host=RemoteHost, link=link, waitConnected=True )
net = Mininet( host=RemoteHost, link=link )
h1 = net.addHost( 'h1')
h2 = net.addHost( 'h2', server=remote )
net.addLink( h1, h2 )
@@ -901,8 +891,7 @@ def testNsTunnels( remote='ubuntu2', link=RemoteGRELink ):
def testRemoteNet( remote='ubuntu2', link=RemoteGRELink ):
"Test remote Node classes"
info( '*** Remote Node Test\n' )
net = Mininet( host=RemoteHost, switch=RemoteOVSSwitch, link=link,
waitConnected=True )
net = Mininet( host=RemoteHost, switch=RemoteOVSSwitch, link=link )
c0 = net.addController( 'c0' )
# Make sure controller knows its non-loopback address
Intf( 'eth0', node=c0 ).updateIP()
-1
View File
@@ -17,7 +17,6 @@ def clusterSanity():
CLI( net )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
clusterSanity()
-1
View File
@@ -31,7 +31,6 @@ class ClusterCLI( CLI ):
if not nx:
try:
# pylint: disable=import-error,no-member
# pylint: disable=import-outside-toplevel
import networkx
nx = networkx # satisfy pylint
from matplotlib import pyplot
+1 -2
View File
@@ -13,13 +13,12 @@ def demo():
"Simple Demo of Cluster Mode"
servers = [ 'localhost', 'ubuntu2', 'ubuntu3' ]
topo = TreeTopo( depth=3, fanout=3 )
net = MininetCluster( topo=topo, servers=servers, link=RemoteLink,
net = MininetCluster( topo=topo, servers=servers, Link=RemoteLink,
placement=SwitchBinPlacer )
net.start()
CLI( net )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
demo()
+1 -2
View File
@@ -8,7 +8,7 @@ from mininet.log import setLogLevel
def perf(Link):
"Test connectivity nand performance over Link"
net = Mininet( host=RemoteHost, link=Link, waitConnected=True )
net = Mininet( host=RemoteHost, link=Link )
h1 = net.addHost( 'h1')
h2 = net.addHost( 'h2', server='ubuntu2' )
net.addLink( h1, h2 )
@@ -17,7 +17,6 @@ def perf(Link):
net.iperf()
net.stop()
if __name__ == '__main__':
setLogLevel('info')
perf( RemoteSSHLink )
+1 -5
View File
@@ -27,7 +27,6 @@ Bob Lantz, April 2010
import re
# pylint: disable=import-error
from Tkinter import Frame, Button, Label, Text, Scrollbar, Canvas, Wm, READABLE
from mininet.log import setLogLevel
@@ -35,9 +34,6 @@ from mininet.topolib import TreeNet
from mininet.term import makeTerms, cleanUpScreens
from mininet.util import quietRun
# pylint: disable=too-many-arguments
class Console( Frame ):
"A simple console on a host."
@@ -323,7 +319,7 @@ class ConsoleApp( Frame ):
if not m:
return
val, units = float( m.group( 1 ) ), m.group( 2 )
# convert to Gbps
#convert to Gbps
if units[0] == 'M':
val *= 10 ** -3
elif units[0] == 'K':
+1 -2
View File
@@ -26,9 +26,8 @@ class MultiSwitch( OVSSwitch ):
def start( self, controllers ):
return OVSSwitch.start( self, [ cmap[ self.name ] ] )
topo = TreeTopo( depth=2, fanout=2 )
net = Mininet( topo=topo, switch=MultiSwitch, build=False, waitConnected=True )
net = Mininet( topo=topo, switch=MultiSwitch, build=False )
for c in [ c0, c1 ]:
net.addController(c)
net.build()
+1 -3
View File
@@ -20,8 +20,7 @@ from mininet.log import setLogLevel, info
def multiControllerNet():
"Create a network from semi-scratch with multiple controllers."
net = Mininet( controller=Controller, switch=OVSSwitch,
waitConnected=True )
net = Mininet( controller=Controller, switch=OVSSwitch )
info( "*** Creating (reference) controllers\n" )
c1 = net.addController( 'c1', port=6633 )
@@ -58,7 +57,6 @@ def multiControllerNet():
info( "*** Stopping network\n" )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' ) # for CLI output
multiControllerNet()
+4 -8
View File
@@ -59,14 +59,13 @@ class MininetFacade( object ):
def __getitem__( self, key ):
"returns primary/named networks or node from any net"
# search kwargs for net named key
#search kwargs for net named key
if key in self.nameToNet:
return self.nameToNet[ key ]
# search each net for node named key
#search each net for node named key
for net in self.nets:
if key in net:
return net[ key ]
return None
def __iter__( self ):
"Iterate through all nodes in all Mininet objects"
@@ -101,7 +100,6 @@ class MininetFacade( object ):
class ControlNetwork( Topo ):
"Control Network Topology"
# pylint: disable=arguments-differ
def build( self, n, dataController=DataController, **_kwargs ):
"""n: number of data network controller nodes
dataController: class for data network controllers"""
@@ -125,8 +123,7 @@ def run():
info( '* Creating Control Network\n' )
ctopo = ControlNetwork( n=4, dataController=DataController )
cnet = Mininet( topo=ctopo, ipBase='192.168.123.0/24',
controller=None, waitConnected=True )
cnet = Mininet( topo=ctopo, ipBase='192.168.123.0/24', controller=None )
info( '* Adding Control Network Controller\n')
cnet.addController( 'cc0', controller=Controller )
info( '* Starting Control Network\n')
@@ -136,8 +133,7 @@ def run():
topo = TreeTopo( depth=2, fanout=2 )
# UserSwitch so we can easily test failover
sw = partial( UserSwitch, opts='--inactivity-probe=1 --max-backoff=1' )
net = Mininet( topo=topo, switch=sw, controller=None,
waitConnected=True )
net = Mininet( topo=topo, switch=sw, controller=None )
info( '* Adding Controllers to Data Network\n' )
for host in cnet.hosts:
if isinstance(host, Controller):
+2 -2
View File
@@ -52,9 +52,9 @@ def bwtest( cpuLimits, period_us=100000, seconds=10 ):
period_us=period_us,
cpu=.5*cpu )
try:
net = Mininet( topo=topo, host=host, waitConnected=True )
net = Mininet( topo=topo, host=host )
# pylint: disable=bare-except
except: # noqa
except:
info( '*** Skipping scheduler %s and cleaning up\n' % sched )
cleanup()
break
+1 -2
View File
@@ -14,7 +14,7 @@ def emptyNet():
"Create an empty network and add nodes to it."
net = Mininet( controller=Controller, waitConnected=True )
net = Mininet( controller=Controller )
info( '*** Adding controller\n' )
net.addController( 'c0' )
@@ -39,7 +39,6 @@ def emptyNet():
info( '*** Stopping network' )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
emptyNet()
+1 -5
View File
@@ -8,8 +8,6 @@ hardware interface) to a network after the network is created.
import re
import sys
from sys import exit # pylint: disable=redefined-builtin
from mininet.cli import CLI
from mininet.log import setLogLevel, info, error
from mininet.net import Mininet
@@ -17,7 +15,6 @@ from mininet.link import Intf
from mininet.topolib import TreeTopo
from mininet.util import quietRun
def checkIntf( intf ):
"Make sure intf exists and is not configured."
config = quietRun( 'ifconfig %s 2>/dev/null' % intf, shell=True )
@@ -30,7 +27,6 @@ def checkIntf( intf ):
'and is probably in use!\n' )
exit( 1 )
if __name__ == '__main__':
setLogLevel( 'info' )
@@ -42,7 +38,7 @@ if __name__ == '__main__':
checkIntf( intfName )
info( '*** Creating network\n' )
net = Mininet( topo=TreeTopo( depth=1, fanout=2 ), waitConnected=True )
net = Mininet( topo=TreeTopo( depth=1, fanout=2 ) )
switch = net.switches[ 0 ]
info( '*** Adding hardware interface', intfName, 'to switch',
+4 -5
View File
@@ -13,7 +13,7 @@ from mininet.link import TCLink
def intfOptions():
"run various traffic control commands on a single interface"
net = Mininet( autoStaticArp=True, waitConnected=True )
net = Mininet( autoStaticArp=True )
net.addController( 'c0' )
h1 = net.addHost( 'h1' )
h2 = net.addHost( 'h2' )
@@ -25,10 +25,10 @@ def intfOptions():
# flush out latency from reactive forwarding delay
net.pingAll()
info( '\n*** Configuring one intf with bandwidth of 10 Mb\n' )
link1.intf1.config( bw=10 )
info( '\n*** Configuring one intf with bandwidth of 5 Mb\n' )
link1.intf1.config( bw=5 )
info( '\n*** Running iperf to test\n' )
net.iperf( seconds=10 )
net.iperf()
info( '\n*** Configuring one intf with loss of 50%\n' )
link1.intf1.config( loss=50 )
@@ -43,7 +43,6 @@ def intfOptions():
info( '\n*** Done testing\n' )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
intfOptions()
+2 -3
View File
@@ -34,7 +34,7 @@ def limit( bw=10, cpu=.1 ):
'Skipping this test\n' )
continue
host = custom( CPULimitedHost, sched=sched, cpu=cpu )
net = Mininet( topo=myTopo, intf=intf, host=host, waitConnected=True )
net = Mininet( topo=myTopo, intf=intf, host=host )
net.start()
testLinkLimit( net, bw=bw )
net.runCpuLimitTest( cpu=cpu )
@@ -43,7 +43,7 @@ def limit( bw=10, cpu=.1 ):
def verySimpleLimit( bw=150 ):
"Absurdly simple limiting test"
intf = custom( TCIntf, bw=bw )
net = Mininet( intf=intf, waitConnected=True )
net = Mininet( intf=intf )
h1, h2 = net.addHost( 'h1' ), net.addHost( 'h2' )
net.addLink( h1, h2 )
net.start()
@@ -55,7 +55,6 @@ def verySimpleLimit( bw=150 ):
h2.cmdPrint( 'tc -d class show dev', h2.defaultIntf() )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
limit()
+9 -14
View File
@@ -24,24 +24,20 @@ of switches, this example demonstrates:
"""
import sys
from functools import partial
from mininet.net import Mininet
from mininet.node import UserSwitch, OVSKernelSwitch, Controller
from mininet.topo import Topo
from mininet.log import lg, info
from mininet.util import irange, quietRun
from mininet.link import TCLink
from functools import partial
import sys
flush = sys.stdout.flush
class LinearTestTopo( Topo ):
"Topology for a string of N hosts and N-1 switches."
# pylint: disable=arguments-differ
def build( self, N, **params ):
# Create switches and hosts
hosts = [ self.addHost( 'h%s' % h )
@@ -83,14 +79,14 @@ def linearBandwidthTest( lengths ):
output = quietRun( 'sysctl -w net.ipv4.tcp_congestion_control=reno' )
assert 'reno' in output
for datapath in switches:
for datapath in switches.keys():
info( "*** testing", datapath, "datapath\n" )
Switch = switches[ datapath ]
results[ datapath ] = []
link = partial( TCLink, delay='30ms', bw=100 )
link = partial( TCLink, delay='2ms', bw=10 )
net = Mininet( topo=topo, switch=Switch,
controller=Controller, link=link,
waitConnected=True )
controller=Controller, waitConnected=True,
link=link )
net.start()
info( "*** testing basic connectivity\n" )
for n in lengths:
@@ -103,13 +99,13 @@ def linearBandwidthTest( lengths ):
src.cmd( 'telnet', dst.IP(), '5001' )
info( "testing", src.name, "<->", dst.name, '\n' )
# serverbw = received; _clientbw = buffered
serverbw, _clientbw = net.iperf( [ src, dst ], seconds=5 )
serverbw, _clientbw = net.iperf( [ src, dst ], seconds=10 )
info( serverbw, '\n' )
flush()
results[ datapath ] += [ ( n, serverbw ) ]
net.stop()
for datapath in switches:
for datapath in switches.keys():
info( "\n*** Linear network results for", datapath, "datapath:\n" )
result = results[ datapath ]
info( "SwitchCount\tiperf Results\n" )
@@ -119,9 +115,8 @@ def linearBandwidthTest( lengths ):
info( '\n')
info( '\n' )
if __name__ == '__main__':
lg.setLogLevel( 'info' )
sizes = [ 1, 2, 3, 4 ]
sizes = [ 1, 10, 20, 40, 60, 80 ]
info( "*** Running linearBandwidthTest", sizes, '\n' )
linearBandwidthTest( sizes )
+1 -5
View File
@@ -38,7 +38,6 @@ from mininet.cli import CLI
class LinuxRouter( Node ):
"A Node with IP forwarding enabled."
# pylint: disable=arguments-differ
def config( self, **params ):
super( LinuxRouter, self).config( **params )
# Enable forwarding on the router
@@ -52,7 +51,6 @@ class LinuxRouter( Node ):
class NetworkTopo( Topo ):
"A LinuxRouter connecting three IP subnets"
# pylint: disable=arguments-differ
def build( self, **_opts ):
defaultIP = '192.168.1.1/24' # IP address for r0-eth1
@@ -81,15 +79,13 @@ class NetworkTopo( Topo ):
def run():
"Test linux router"
topo = NetworkTopo()
net = Mininet( topo=topo,
waitConnected=True ) # controller is used by s1-s3
net = Mininet( topo=topo ) # controller is used by s1-s3
net.start()
info( '*** Routing Table on Router:\n' )
info( net[ 'r0' ].cmd( 'route' ) )
CLI( net )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
run()
+65 -70
View File
@@ -1,4 +1,4 @@
#!/usr/bin/env python
#!/usr/bin/python
"""
MiniEdit: a simple network editor for Mininet
@@ -13,30 +13,16 @@ Controller icon from http://semlabs.co.uk/
OpenFlow icon from https://www.opennetworking.org/
"""
import json
import os
import re
import sys
# Miniedit needs some work in order to pass pylint...
# pylint: disable=line-too-long,too-many-branches
# pylint: disable=too-many-statements,attribute-defined-outside-init
# pylint: disable=missing-docstring
from distutils.version import StrictVersion
from functools import partial
MINIEDIT_VERSION = '2.2.0.1'
import sys
from optparse import OptionParser
from subprocess import call
from sys import exit # pylint: disable=redefined-builtin
from mininet.log import info, debug, warn, setLogLevel
from mininet.net import Mininet, VERSION
from mininet.util import (netParse, ipAdd, quietRun,
buildTopo, custom, customClass )
from mininet.term import makeTerm, cleanUpScreens
from mininet.node import (Controller, RemoteController, NOX, OVSController,
CPULimitedHost, Host, Node,
OVSSwitch, UserSwitch, IVSSwitch )
from mininet.link import TCLink, Intf, Link
from mininet.cli import CLI
from mininet.moduledeps import moduleDeps
from mininet.topo import SingleSwitchTopo, LinearTopo, SingleSwitchReversedTopo
from mininet.topolib import TreeTopo
# pylint: disable=import-error
if sys.version_info[0] == 2:
@@ -61,24 +47,38 @@ else:
from tkinter import font as tkFont
from tkinter import simpledialog as tkSimpleDialog
from tkinter import filedialog as tkFileDialog
# someday: from ttk import *
# pylint: enable=import-error
# Miniedit still needs work in order to pass pylint...
# pylint: disable=line-too-long,too-many-branches
# pylint: disable=too-many-statements,attribute-defined-outside-init
# pylint: disable=missing-docstring,too-many-ancestors
# pylint: disable=too-many-nested-blocks,too-many-arguments
MINIEDIT_VERSION = '2.2.0.1'
import re
import json
from distutils.version import StrictVersion
import os
from functools import partial
if 'PYTHONPATH' in os.environ:
sys.path = os.environ[ 'PYTHONPATH' ].split( ':' ) + sys.path
# someday: from ttk import *
from mininet.log import info, debug, warn, setLogLevel
from mininet.net import Mininet, VERSION
from mininet.util import netParse, ipAdd, quietRun
from mininet.util import buildTopo
from mininet.util import custom, customClass
from mininet.term import makeTerm, cleanUpScreens
from mininet.node import Controller, RemoteController, NOX, OVSController
from mininet.node import CPULimitedHost, Host, Node
from mininet.node import OVSSwitch, UserSwitch
from mininet.link import TCLink, Intf, Link
from mininet.cli import CLI
from mininet.moduledeps import moduleDeps
from mininet.topo import SingleSwitchTopo, LinearTopo, SingleSwitchReversedTopo
from mininet.topolib import TreeTopo
info( 'MiniEdit running against Mininet '+VERSION, '\n' )
MININET_VERSION = re.sub(r'[^\d\.]', '', VERSION)
if StrictVersion(MININET_VERSION) > StrictVersion('2.0'):
from mininet.node import IVSSwitch
TOPODEF = 'none'
TOPOS = { 'minimal': lambda: SingleSwitchTopo( k=2 ),
@@ -138,7 +138,6 @@ class LegacyRouter( Node ):
def __init__( self, name, inNamespace=True, **params ):
Node.__init__( self, name, inNamespace, **params )
# pylint: disable=arguments-differ
def config( self, **_params ):
if self.intfs:
self.setParam( _params, 'setIP', ip='0.0.0.0' )
@@ -819,8 +818,8 @@ class VerticalScrolledTable(LabelFrame):
* This frame only allows vertical scrolling
"""
def __init__(self, parent, rows=2, columns=2, title=None, **kw):
LabelFrame.__init__(self, parent, text=title, padx=5, pady=5, **kw)
def __init__(self, parent, rows=2, columns=2, title=None, *args, **kw):
LabelFrame.__init__(self, parent, text=title, padx=5, pady=5, *args, **kw)
# create a canvas object and a vertical scrollbar for scrolling it
vscrollbar = Scrollbar(self, orient=VERTICAL)
@@ -856,6 +855,8 @@ class VerticalScrolledTable(LabelFrame):
canvas.itemconfigure(interior_id, width=canvas.winfo_width())
canvas.bind('<Configure>', _configure_canvas)
return
class TableFrame(Frame):
def __init__(self, parent, rows=2, columns=2):
@@ -887,7 +888,7 @@ class TableFrame(Frame):
label.grid(row=self.rows, column=column, sticky="wens", padx=1, pady=1)
if value is not None:
label.insert(0, value[column])
if readonly:
if readonly == True:
label.configure(state='readonly')
current_row.append(label)
self._widgets.append(current_row)
@@ -1400,11 +1401,11 @@ class MiniEdit( Frame ):
def addNode( self, node, nodeNum, x, y, name=None):
"Add a new node to our canvas."
if node == 'Switch':
if 'Switch' == node:
self.switchCount += 1
if node == 'Host':
if 'Host' == node:
self.hostCount += 1
if node == 'Controller':
if 'Controller' == node:
self.controllerCount += 1
if name is None:
name = self.nodePrefixes[ node ] + nodeNum
@@ -1421,17 +1422,14 @@ class MiniEdit( Frame ):
def convertJsonUnicode(self, text):
"Some part of Mininet don't like Unicode"
try:
unicode
except NameError:
return text
if isinstance(text, dict):
return {self.convertJsonUnicode(key): self.convertJsonUnicode(value) for key, value in text.items()}
if isinstance(text, list):
elif isinstance(text, list):
return [self.convertJsonUnicode(element) for element in text]
if isinstance(text, unicode): # pylint: disable=undefined-variable
elif isinstance(text, unicode):
return text.encode('utf-8')
return text
else:
return text
def loadTopology( self ):
"Load command."
@@ -1442,7 +1440,7 @@ class MiniEdit( Frame ):
('All Files','*'),
]
f = tkFileDialog.askopenfile(filetypes=myFormats, mode='rb')
if f is None:
if f == None:
return
self.newTopology()
loadedTopology = self.convertJsonUnicode(json.load(f))
@@ -1603,11 +1601,10 @@ class MiniEdit( Frame ):
for widget in self.widgetToItem:
if name == widget[ 'text' ]:
return widget
return None
def newTopology( self ):
"New command."
for widget in self.widgetToItem:
for widget in self.widgetToItem.keys():
self.deleteItem( self.widgetToItem[ widget ] )
self.hostCount = 0
self.switchCount = 0
@@ -1728,7 +1725,7 @@ class MiniEdit( Frame ):
if controllerType == 'inband':
inBandCtrl = True
if inBandCtrl:
if inBandCtrl == True:
f.write("\n")
f.write("class InbandController( RemoteController ):\n")
f.write("\n")
@@ -2125,7 +2122,7 @@ class MiniEdit( Frame ):
c = self.canvas
x, y = c.canvasx( event.x ), c.canvasy( event.y )
name = self.nodePrefixes[ node ]
if node == 'Switch':
if 'Switch' == node:
self.switchCount += 1
name = self.nodePrefixes[ node ] + str( self.switchCount )
self.switchOpts[name] = {}
@@ -2133,14 +2130,14 @@ class MiniEdit( Frame ):
self.switchOpts[name]['hostname']=name
self.switchOpts[name]['switchType']='default'
self.switchOpts[name]['controllers']=[]
if node == 'LegacyRouter':
if 'LegacyRouter' == node:
self.switchCount += 1
name = self.nodePrefixes[ node ] + str( self.switchCount )
self.switchOpts[name] = {}
self.switchOpts[name]['nodeNum']=self.switchCount
self.switchOpts[name]['hostname']=name
self.switchOpts[name]['switchType']='legacyRouter'
if node == 'LegacySwitch':
if 'LegacySwitch' == node:
self.switchCount += 1
name = self.nodePrefixes[ node ] + str( self.switchCount )
self.switchOpts[name] = {}
@@ -2148,13 +2145,13 @@ class MiniEdit( Frame ):
self.switchOpts[name]['hostname']=name
self.switchOpts[name]['switchType']='legacySwitch'
self.switchOpts[name]['controllers']=[]
if node == 'Host':
if 'Host' == node:
self.hostCount += 1
name = self.nodePrefixes[ node ] + str( self.hostCount )
self.hostOpts[name] = {'sched':'host'}
self.hostOpts[name]['nodeNum']=self.hostCount
self.hostOpts[name]['hostname']=name
if node == 'Controller':
if 'Controller' == node:
name = self.nodePrefixes[ node ] + str( self.controllerCount )
ctrlr = { 'controllerType': 'ref',
'hostname': name,
@@ -2172,15 +2169,15 @@ class MiniEdit( Frame ):
self.itemToWidget[ item ] = icon
self.selectItem( item )
icon.links = {}
if node == 'Switch':
if 'Switch' == node:
icon.bind('<Button-3>', self.do_switchPopup )
if node == 'LegacyRouter':
if 'LegacyRouter' == node:
icon.bind('<Button-3>', self.do_legacyRouterPopup )
if node == 'LegacySwitch':
if 'LegacySwitch' == node:
icon.bind('<Button-3>', self.do_legacySwitchPopup )
if node == 'Host':
if 'Host' == node:
icon.bind('<Button-3>', self.do_hostPopup )
if node == 'Controller':
if 'Controller' == node:
icon.bind('<Button-3>', self.do_controllerPopup )
def clickController( self, event ):
@@ -2250,7 +2247,7 @@ class MiniEdit( Frame ):
def clickNode( self, event ):
"Node click handler."
if self.active == 'NetLink':
if self.active is 'NetLink':
self.startLink( event )
else:
self.selectNode( event )
@@ -2258,14 +2255,14 @@ class MiniEdit( Frame ):
def dragNode( self, event ):
"Node drag handler."
if self.active == 'NetLink':
if self.active is 'NetLink':
self.dragNetLink( event )
else:
self.dragNodeAround( event )
def releaseNode( self, event ):
"Node release handler."
if self.active == 'NetLink':
if self.active is 'NetLink':
self.finishLink( event )
# Specific node handlers
@@ -2377,8 +2374,6 @@ class MiniEdit( Frame ):
# For now, don't allow hosts to be directly linked
stags = self.canvas.gettags( self.widgetToItem[ source ] )
dtags = self.canvas.gettags( target )
# TODO: Make this less confusing
# pylint: disable=too-many-boolean-expressions
if (('Host' in stags and 'Host' in dtags) or
('Controller' in dtags and 'LegacyRouter' in stags) or
('Controller' in stags and 'LegacyRouter' in dtags) or
@@ -2662,7 +2657,7 @@ class MiniEdit( Frame ):
linkopts = {}
source.links[ dest ] = self.link
dest.links[ source ] = self.link
self.links[ self.link ] = {'type':linktype,
self.links[ self.link ] = {'type' :linktype,
'src':source,
'dest':dest,
'linkOpts':linkopts}
@@ -3016,7 +3011,7 @@ class MiniEdit( Frame ):
## NOTE: MAKE SURE THIS IS LAST THING CALLED
# Start the CLI if enabled
if self.appPrefs['startCLI'] == '1':
info( "\n\n NOTE: PLEASE REMEMBER TO EXIT THE CLI BEFORE YOU PRESS THE STOP BUTTON. Not exiting will prevent MiniEdit from quitting and will prevent you from starting the network again during this session.\n\n")
info( "\n\n NOTE: PLEASE REMEMBER TO EXIT THE CLI BEFORE YOU PRESS THE STOP BUTTON. Not exiting will prevent MiniEdit from quitting and will prevent you from starting the network again during this sessoin.\n\n")
CLI(self.net)
def start( self ):
@@ -3230,8 +3225,7 @@ class MiniEdit( Frame ):
"Parse custom file and add params before parsing cmd-line options."
customs = {}
if os.path.isfile( fileName ):
with open( fileName, 'r' ) as f:
exec( f.read() ) # pylint: disable=exec-used
execfile( fileName, customs, customs )
for name, val in customs.items():
self.setCustom( name, val )
else:
@@ -3598,7 +3592,8 @@ def addDictOption( opts, choicesDict, default, name, helpStr=None ):
if __name__ == '__main__':
setLogLevel( 'info' )
app = MiniEdit()
app.parseArgs()
### import topology if specified ###
app.parseArgs()
app.importTopo()
app.mainloop()
+3 -5
View File
@@ -19,13 +19,14 @@ to-do:
- think about clearing last hop - why doesn't that work?
"""
from random import randint
from mininet.net import Mininet
from mininet.node import OVSSwitch
from mininet.topo import LinearTopo
from mininet.log import info, output, warn, setLogLevel
from random import randint
class MobilitySwitch( OVSSwitch ):
"Switch that can reattach and rename interfaces"
@@ -37,7 +38,6 @@ class MobilitySwitch( OVSSwitch ):
del self.intfs[ port ]
del self.nameToIntf[ intf.name ]
# pylint: disable=arguments-differ
def addIntf( self, intf, rename=False, **kwargs ):
"Add (and reparent) an interface"
OVSSwitch.addIntf( self, intf, **kwargs )
@@ -107,8 +107,7 @@ def moveHost( host, oldSwitch, newSwitch, newPort=None ):
def mobilityTest():
"A simple test of mobility"
info( '* Simple mobility test\n' )
net = Mininet( topo=LinearTopo( 3 ), switch=MobilitySwitch,
waitConnected=True )
net = Mininet( topo=LinearTopo( 3 ), switch=MobilitySwitch )
info( '* Starting network:\n' )
net.start()
printConnections( net.switches )
@@ -132,7 +131,6 @@ def mobilityTest():
old = new
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
mobilityTest()
+1 -3
View File
@@ -13,7 +13,7 @@ from mininet.topo import Topo
def runMultiLink():
"Create and run multiple link network"
topo = simpleMultiLinkTopo( n=2 )
net = Mininet( topo=topo, waitConnected=True )
net = Mininet( topo=topo )
net.start()
CLI( net )
net.stop()
@@ -21,7 +21,6 @@ def runMultiLink():
class simpleMultiLinkTopo( Topo ):
"Simple topology with multiple links"
# pylint: disable=arguments-differ
def build( self, n, **_kwargs ):
h1, h2 = self.addHost( 'h1' ), self.addHost( 'h2' )
s1 = self.addSwitch( 's1' )
@@ -30,7 +29,6 @@ class simpleMultiLinkTopo( Topo ):
self.addLink( s1, h1 )
self.addLink( s1, h2 )
if __name__ == '__main__':
setLogLevel( 'info' )
runMultiLink()
+3 -3
View File
@@ -8,14 +8,14 @@ multiple hosts and monitor their output interactively for a period=
of time.
"""
from select import poll, POLLIN
from time import time
from mininet.net import Mininet
from mininet.node import Node
from mininet.topo import SingleSwitchTopo
from mininet.log import info, setLogLevel
from select import poll, POLLIN
from time import time
def chunks( l, n ):
"Divide list l into chunks of size n - thanks Stackoverflow"
@@ -59,7 +59,7 @@ def multiping( netsize, chunksize, seconds):
# Start pings
for subnet in subnets:
ips = [ host.IP() for host in subnet ]
# adding bogus to generate packet loss
#adding bogus to generate packet loss
ips.append( '10.0.0.200' )
for host in subnet:
startpings( host, ips )
+5 -5
View File
@@ -6,15 +6,15 @@ monitoring them
"""
from time import time
from select import poll, POLLIN
from subprocess import Popen, PIPE
from mininet.topo import SingleSwitchTopo
from mininet.net import Mininet
from mininet.log import info, setLogLevel
from mininet.util import decode
from time import time
from select import poll, POLLIN
from subprocess import Popen, PIPE
def monitorFiles( outfiles, seconds, timeoutms ):
"Monitor set of files and return [(host, line)...]"
@@ -53,7 +53,7 @@ def monitorFiles( outfiles, seconds, timeoutms ):
def monitorTest( N=3, seconds=3 ):
"Run pings and monitor multiple hosts"
topo = SingleSwitchTopo( N )
net = Mininet( topo, waitConnected=True )
net = Mininet( topo )
net.start()
hosts = net.hosts
info( "Starting test...\n" )
+1 -3
View File
@@ -17,14 +17,12 @@ def ifconfigTest( net ):
for host in hosts:
info( host.cmd( 'ifconfig' ) )
if __name__ == '__main__':
lg.setLogLevel( 'info' )
info( "*** Initializing Mininet and kernel modules\n" )
OVSKernelSwitch.setup()
info( "*** Creating network\n" )
network = Mininet( TreeTopo( depth=2, fanout=2), switch=OVSKernelSwitch,
waitConnected=True )
network = Mininet( TreeTopo( depth=2, fanout=2 ), switch=OVSKernelSwitch )
info( "*** Starting network\n" )
network.start()
info( "*** Running ping test\n" )
+1 -1
View File
@@ -12,7 +12,7 @@ from mininet.topolib import TreeNet
if __name__ == '__main__':
lg.setLogLevel( 'info')
net = TreeNet( depth=1, fanout=4, waitConnected=True )
net = TreeNet( depth=1, fanout=4 )
# Add NAT connectivity
net.addNAT().configDefault()
net.start()
+1 -3
View File
@@ -27,7 +27,6 @@ from mininet.util import irange
class InternetTopo(Topo):
"Single switch connected to n hosts."
# pylint: disable=arguments-differ
def build(self, n=2, **_kwargs ):
# set up inet switch
inetSwitch = self.addSwitch('s0')
@@ -58,12 +57,11 @@ class InternetTopo(Topo):
def run():
"Create network and run the CLI"
topo = InternetTopo()
net = Mininet(topo=topo, waitConnected=True )
net = Mininet(topo=topo)
net.start()
CLI(net)
net.stop()
if __name__ == '__main__':
setLogLevel('info')
run()
+1 -2
View File
@@ -28,7 +28,7 @@ def testPortNumbering():
mid-level API) and check that implicit and
explicit port numbering works as expected."""
net = Mininet( controller=Controller, waitConnected=True )
net = Mininet( controller=Controller )
info( '*** Adding controller\n' )
net.addController( 'c0' )
@@ -75,7 +75,6 @@ def testPortNumbering():
info( '*** Stopping network\n' )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
testPortNumbering()
+7 -4
View File
@@ -5,15 +5,19 @@ This example monitors a number of hosts using host.popen() and
pmonitor()
"""
from mininet.net import Mininet
from mininet.node import CPULimitedHost
from mininet.topo import SingleSwitchTopo
from mininet.log import setLogLevel, info
from mininet.util import pmonitor
from mininet.util import custom, pmonitor
def monitorhosts( hosts=5 ):
def monitorhosts( hosts=5, sched='cfs' ):
"Start a bunch of pings and monitor them using popen"
mytopo = SingleSwitchTopo( hosts )
net = Mininet( topo=mytopo, waitConnected=True )
cpu = .5 / hosts
myhost = custom( CPULimitedHost, cpu=cpu, sched=sched )
net = Mininet( topo=mytopo, host=myhost )
net.start()
# Start a bunch of pings
popens = {}
@@ -28,7 +32,6 @@ def monitorhosts( hosts=5 ):
# Done
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
monitorhosts( hosts=5 )
+3 -5
View File
@@ -2,19 +2,18 @@
"Monitor multiple hosts using popen()/pmonitor()"
from time import time
from signal import SIGINT
from mininet.net import Mininet
from mininet.topo import SingleSwitchTopo
from mininet.util import pmonitor
from mininet.log import setLogLevel, info
from time import time
from signal import SIGINT
def pmonitorTest( N=3, seconds=10 ):
"Run pings and monitor multiple hosts using pmonitor"
topo = SingleSwitchTopo( N )
net = Mininet( topo, waitConnected=True )
net = Mininet( topo )
net.start()
hosts = net.hosts
info( "Starting test...\n" )
@@ -32,7 +31,6 @@ def pmonitorTest( N=3, seconds=10 ):
p.send_signal( SIGINT )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
pmonitorTest()
+1 -2
View File
@@ -8,7 +8,6 @@ but it exposes the configuration details and allows customization.
For most tasks, the higher-level API will be preferable.
"""
from time import sleep
from mininet.net import Mininet
from mininet.node import Node
@@ -16,6 +15,7 @@ from mininet.link import Link
from mininet.log import setLogLevel, info
from mininet.util import quietRun
from time import sleep
def scratchNet( cname='controller', cargs='-v ptcp:' ):
"Create network from scratch using Open vSwitch."
@@ -62,7 +62,6 @@ def scratchNet( cname='controller', cargs='-v ptcp:' ):
switch.deleteIntfs()
info( '\n' )
if __name__ == '__main__':
setLogLevel( 'info' )
info( '*** Scratch network demo (kernel datapath)\n' )
-1
View File
@@ -66,7 +66,6 @@ def scratchNetUser( cname='controller', cargs='ptcp:' ):
switch.deleteIntfs()
info( '\n' )
if __name__ == '__main__':
setLogLevel( 'info' )
info( '*** Scratch network demo (user datapath)\n' )
+1 -2
View File
@@ -9,7 +9,6 @@ iperf will hang indefinitely if the TCP handshake fails
to complete.
"""
from sys import argv
from mininet.topo import Topo
from mininet.net import Mininet
@@ -18,6 +17,7 @@ from mininet.link import TCLink
from mininet.util import dumpNodeConnections
from mininet.log import setLogLevel, info
from sys import argv
# It would be nice if we didn't have to do this:
# pylint: disable=arguments-differ
@@ -54,7 +54,6 @@ def perfTest( lossy=True ):
net.iperf( ( h1, h4 ), l4Type='UDP' )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
# Prevent test_simpleperf from failing due to packet loss
+1 -3
View File
@@ -29,7 +29,7 @@ from mininet.util import waitListening
def TreeNet( depth=1, fanout=2, **kwargs ):
"Convenience function for creating tree networks."
topo = TreeTopo( depth, fanout )
return Mininet( topo, waitConnected=True, **kwargs )
return Mininet( topo, **kwargs )
def connectToRootNS( network, switch, ip, routes ):
"""Connect hosts to root namespace via switch. Starts network.
@@ -47,7 +47,6 @@ def connectToRootNS( network, switch, ip, routes ):
for route in routes:
root.cmd( 'route add -net ' + route + ' dev ' + str( intf ) )
# pylint: disable=too-many-arguments
def sshd( network, cmd='/usr/sbin/sshd', opts='-D',
ip='10.123.123.1/32', routes=None, switch=None ):
"""Start a network, connect it to root ns, and run sshd on all hosts.
@@ -74,7 +73,6 @@ def sshd( network, cmd='/usr/sbin/sshd', opts='-D',
host.cmd( 'kill %' + cmd )
network.stop()
if __name__ == '__main__':
lg.setLogLevel( 'info')
net = TreeNet( depth=1, fanout=4 )
-2
View File
@@ -14,8 +14,6 @@ class clusterSanityCheck( unittest.TestCase ):
def testClusterPingAll( self ):
p = pexpect.spawn( 'python -m mininet.examples.clusterSanity' )
p.expect( self.prompt )
p.sendline( 'py net.waitConnected()' )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect ( '(\d+)% dropped' )
percent = int( p.match.group( 1 ) ) if p.match else -1
+3 -5
View File
@@ -7,15 +7,13 @@ Test for controlnet.py
import unittest
from mininet.util import pexpect
from sys import stdout
class testControlNet( unittest.TestCase ):
prompt = 'mininet>'
def testPingall( self ):
"Simple pingall test that verifies 0% packet drop in data network"
p = pexpect.spawn( 'python -m mininet.examples.controlnet', logfile=stdout)
p = pexpect.spawn( 'python -m mininet.examples.controlnet' )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect ( '(\d+)% dropped' )
@@ -28,9 +26,9 @@ class testControlNet( unittest.TestCase ):
def testFailover( self ):
"Kill controllers and verify that switch, s1, fails over properly"
count = 1
p = pexpect.spawn( 'python -m mininet.examples.controlnet', logfile=stdout )
p = pexpect.spawn( 'python -m mininet.examples.controlnet' )
p.expect( self.prompt )
lp = pexpect.spawn( 'tail -f /tmp/s1-ofp.log', logfile=stdout )
lp = pexpect.spawn( 'tail -f /tmp/s1-ofp.log' )
lp.expect( 'tcp:\d+\.\d+\.\d+\.(\d+):\d+: connected' )
ip = int( lp.match.group( 1 ) )
self.assertEqual( count, ip )
+4 -6
View File
@@ -13,7 +13,7 @@ class testIntfOptions( unittest.TestCase ):
def testIntfOptions( self ):
"verify that intf.config is correctly limiting traffic"
p = pexpect.spawn( 'python -m mininet.examples.intfoptions ' )
tolerance = .25 # plus or minus 25% for cloud CI tests
tolerance = .2 # plus or minus 20%
opts = [ "Results: \['([\d\.]+) .bits/sec",
"Results: \['10M', '([\d\.]+) .bits/sec",
"h(\d+)->h(\d+): (\d)/(\d),"
@@ -22,7 +22,7 @@ class testIntfOptions( unittest.TestCase ):
while True:
index = p.expect( opts, timeout=600 )
if index == 0:
BW = 10
BW = 5
bw = float( p.match.group( 1 ) )
self.assertGreaterEqual( bw, BW * ( 1 - tolerance ) )
self.assertLessEqual( bw, BW * ( 1 + tolerance ) )
@@ -30,10 +30,8 @@ class testIntfOptions( unittest.TestCase ):
BW = 10
measuredBw = float( p.match.group( 1 ) )
loss = ( measuredBw / BW ) * 100
self.assertGreaterEqual( loss, 50 * ( 1 - tolerance ),
'loss of %d%% << 50%%' % loss )
self.assertLessEqual( loss, 50 * ( 1 + tolerance ),
'loss of %d%% >> 50%%' % loss )
self.assertGreaterEqual( loss, 50 * ( 1 - tolerance ) )
self.assertLessEqual( loss, 50 * ( 1 + tolerance ) )
elif index == 2:
delay = float( p.match.group( 6 ) )
self.assertGreaterEqual( delay, 15 * ( 1 - tolerance ) )
View File
Executable → Regular
View File
-1
View File
@@ -16,7 +16,6 @@ class testScratchNet( unittest.TestCase ):
p = pexpect.spawn( 'python -m %s' % name )
index = p.expect( self.opts, timeout=120 )
self.assertEqual( index, 0 )
p.wait()
def testPingKernel( self ):
self.pingTest( 'mininet.examples.scratchnet' )
+2 -2
View File
@@ -16,8 +16,7 @@ class testSSHD( unittest.TestCase ):
"Log into ssh server, check banner, then exit"
# Note: this test will fail if "Welcome" is not in the sshd banner
# and '#'' or '$'' are not in the prompt
ssh = 'ssh -o StrictHostKeyChecking=no -i /tmp/ssh/test_rsa ' + ip
p = pexpect.spawn( ssh, timeout=5 )
p = pexpect.spawn( 'ssh -i /tmp/ssh/test_rsa %s' % ip, timeout=10 )
while True:
index = p.expect( self.opts )
if index == 0:
@@ -58,3 +57,4 @@ class testSSHD( unittest.TestCase ):
if __name__ == '__main__':
unittest.main()
Executable → Regular
View File
+1 -3
View File
@@ -11,10 +11,8 @@ from mininet.cli import CLI
from mininet.log import setLogLevel
from mininet.node import OVSSwitch
from mininet.topolib import TreeNet
from mininet.examples.treeping64 import HostV4
if __name__ == '__main__':
setLogLevel( 'info' )
network = TreeNet( depth=2, fanout=32, host=HostV4,
switch=OVSSwitch, waitConnected=True)
network = TreeNet( depth=2, fanout=32, switch=OVSSwitch )
network.run( CLI, network )
+5 -17
View File
@@ -4,32 +4,21 @@
from mininet.log import setLogLevel, info
from mininet.node import UserSwitch, OVSKernelSwitch, Host
from mininet.node import UserSwitch, OVSKernelSwitch # , KernelSwitch
from mininet.topolib import TreeNet
class HostV4( Host ):
"Try to IPv6 and its awful neighbor discovery"
def __init__( self, *args, **kwargs ):
super( HostV4, self ).__init__( *args, **kwargs )
cfgs = [ 'all.disable_ipv6=1', 'default.disable_ipv6=1',
'default.autoconf=0', 'lo.autoconf=0' ]
for cfg in cfgs:
self.cmd( 'sysctl -w net.ipv6.conf.' + cfg )
def treePing64():
"Run ping test on 64-node tree networks."
results = {}
switches = { 'reference user': UserSwitch,
'Open vSwitch kernel': OVSKernelSwitch }
switches = { # 'reference kernel': KernelSwitch,
'reference user': UserSwitch,
'Open vSwitch kernel': OVSKernelSwitch }
for name in switches:
info( "*** Testing", name, "datapath\n" )
switch = switches[ name ]
network = TreeNet( depth=2, fanout=8, switch=switch,
waitConnected=True )
network = TreeNet( depth=2, fanout=8, switch=switch )
result = network.run( network.pingAll )
results[ name ] = result
@@ -38,7 +27,6 @@ def treePing64():
info( "%s: %d%% packet loss\n" % ( name, results[ name ] ) )
info( '\n' )
if __name__ == '__main__':
setLogLevel( 'info' )
treePing64()
+2 -8
View File
@@ -24,18 +24,14 @@ Usage (example uses VLAN ID=1000):
"""
from sys import exit # pylint: disable=redefined-builtin
from mininet.node import Host
from mininet.topo import Topo
from mininet.util import quietRun
from mininet.log import error
class VLANHost( Host ):
"Host connected to VLAN interface"
# pylint: disable=arguments-differ
def config( self, vlan=100, **params ):
"""Configure VLANHost according to (optional) parameters:
vlan: VLAN ID for default interface"""
@@ -58,7 +54,6 @@ class VLANHost( Host ):
return r
hosts = { 'vlan': VLANHost }
@@ -70,7 +65,7 @@ def exampleAllHosts( vlan ):
# Start a basic network using our VLANHost
topo = SingleSwitchTopo( k=2 )
net = Mininet( host=host, topo=topo, waitConnected=True )
net = Mininet( host=host, topo=topo )
net.start()
CLI( net )
net.stop()
@@ -101,12 +96,11 @@ class VLANStarTopo( Topo ):
def exampleCustomTags():
"""Simple example that exercises VLANStarTopo"""
net = Mininet( topo=VLANStarTopo(), waitConnected=True )
net = Mininet( topo=VLANStarTopo() )
net.start()
CLI( net )
net.stop()
if __name__ == '__main__':
import sys
from functools import partial
+8 -15
View File
@@ -46,8 +46,7 @@ class CLI( Cmd ):
prompt = 'mininet> '
def __init__( self, mininet, stdin=sys.stdin, script=None,
**kwargs ):
def __init__( self, mininet, stdin=sys.stdin, script=None ):
"""Start and run interactive or batch mode CLI
mininet: Mininet network object
stdin: standard input for CLI
@@ -56,10 +55,11 @@ class CLI( Cmd ):
# Local variable bindings for py command
self.locals = { 'net': mininet }
# Attempt to handle input
self.stdin = stdin
self.inPoller = poll()
self.inPoller.register( stdin )
self.inputFile = script
Cmd.__init__( self, stdin=stdin, **kwargs )
Cmd.__init__( self )
info( '*** Starting CLI:\n' )
if self.inputFile:
@@ -79,7 +79,6 @@ class CLI( Cmd ):
return
cls.readlineInited = True
try:
# pylint: disable=import-outside-toplevel
from readline import ( read_history_file, write_history_file,
set_history_length )
except ImportError:
@@ -142,10 +141,10 @@ class CLI( Cmd ):
' mininet> xterm h2\n\n'
)
def do_help( self, line ): # pylint: disable=arguments-differ
def do_help( self, line ):
"Describe available CLI commands."
Cmd.do_help( self, line )
if line == '':
if line is '':
output( self.helpStr )
def do_nodes( self, _line ):
@@ -174,7 +173,6 @@ class CLI( Cmd ):
"""Evaluate a Python expression.
Node names may be used, e.g.: py h1.cmd('ls')"""
try:
# pylint: disable=eval-used
result = eval( line, globals(), self.getLocals() )
if not result:
return
@@ -401,10 +399,6 @@ class CLI( Cmd ):
error( 'invalid command: '
'switch <switch name> {start, stop}\n' )
def do_wait( self, _line ):
"Wait until all switches have connected to a controller"
self.mn.waitConnected()
def default( self, line ):
"""Called on an input line when the command prefix is not recognized.
Overridden to run shell commands when a node is the first
@@ -450,7 +444,7 @@ class CLI( Cmd ):
# XXX BL: this doesn't quite do what we want.
if False and self.inputFile:
key = self.inputFile.read( 1 )
if key != '':
if key is not '':
node.write( key )
else:
self.inputFile = None
@@ -469,10 +463,10 @@ class CLI( Cmd ):
node.sendInt()
except select.error as e:
# pylint: disable=unpacking-non-sequence
# pylint: disable=unbalanced-tuple-unpacking
errno_, errmsg = e.args
# pylint: enable=unpacking-non-sequence
if errno_ != errno.EINTR:
error( "select.error: %s, %s" % (errno_, errmsg) )
error( "select.error: %d, %s" % (errno_, errmsg) )
node.sendInt()
def precmd( self, line ):
@@ -490,4 +484,3 @@ def isReadable( poller ):
mask = fdmask[ 1 ]
if mask & POLLIN:
return True
return False
+26 -33
View File
@@ -24,14 +24,9 @@ TCIntf: interface with bandwidth limiting and delay via tc
Link: basic link class for creating veth pairs
"""
import re
from mininet.log import info, error, debug
from mininet.util import makeIntfPair
# Make pylint happy:
# pylint: disable=too-many-arguments
import re
class Intf( object ):
@@ -175,7 +170,7 @@ class Intf( object ):
name, value = list( param.items() )[ 0 ]
f = getattr( self, method, None )
if not f or value is None:
return None
return
if isinstance( value, list ):
result = f( *value )
elif isinstance( value, dict ):
@@ -300,7 +295,7 @@ class TCIntf( Intf ):
netemargs = '%s%s%s%s' % (
'delay %s ' % delay if delay is not None else '',
'%s ' % jitter if jitter is not None else '',
'loss %.5f ' % loss if (loss is not None and loss > 0) else '',
'loss %.5f ' % loss if loss is not None else '',
'limit %d' % max_queue_size if max_queue_size is not None
else '' )
if netemargs:
@@ -316,7 +311,6 @@ class TCIntf( Intf ):
debug(" *** executing command: %s\n" % c)
return self.cmd( c )
# pylint: disable=arguments-differ
def config( self, bw=None, delay=None, jitter=None, loss=None,
gro=False, txo=True, rxo=True,
speedup=0, use_hfsc=False, use_tbf=False,
@@ -357,7 +351,7 @@ class TCIntf( Intf ):
# Question: what happens if we want to reset things?
if ( bw is None and not delay and not loss
and max_queue_size is None ):
return None
return
# Clear existing configuration
tcoutput = self.tc( '%s qdisc show dev %s' )
@@ -413,7 +407,7 @@ class Link( object ):
def __init__( self, node1, node2, port1=None, port2=None,
intfName1=None, intfName2=None, addr1=None, addr2=None,
intf=Intf, cls1=None, cls2=None, params1=None,
params2=None, fast=True, **params ):
params2=None, fast=True ):
"""Create veth link to another node, making two new interfaces.
node1: first node
node2: second node
@@ -423,15 +417,18 @@ class Link( object ):
cls1, cls2: optional interface-specific constructors
intfName1: node1 interface name (optional)
intfName2: node2 interface name (optional)
params1: parameters for interface 1 (optional)
params2: parameters for interface 2 (optional)
**params: additional parameters for both interfaces"""
params1: parameters for interface 1
params2: parameters for interface 2"""
# This is a bit awkward; it seems that having everything in
# params is more orthogonal, but being able to specify
# in-line arguments is more convenient! So we support both.
params1 = dict( params1 ) if params1 else {}
params2 = dict( params2 ) if params2 else {}
if params1 is None:
params1 = {}
if params2 is None:
params2 = {}
# Allow passing in params1=params2
if params2 is params1:
params2 = dict( params1 )
if port1 is not None:
params1[ 'port' ] = port1
if port2 is not None:
@@ -445,10 +442,6 @@ class Link( object ):
if not intfName2:
intfName2 = self.intfName( node2, params2[ 'port' ] )
# Update with remaining parameter list
params1.update( params )
params2.update( params )
self.fast = fast
if fast:
params1.setdefault( 'moveIntfFn', self._ignore )
@@ -470,7 +463,6 @@ class Link( object ):
# All we are is dust in the wind, and our two interfaces
self.intf1, self.intf2 = intf1, intf2
# pylint: enable=too-many-branches
@staticmethod
@@ -539,11 +531,7 @@ class OVSLink( Link ):
def __init__( self, node1, node2, **kwargs ):
"See Link.__init__() for options"
try:
OVSSwitch
except NameError:
# pylint: disable=import-outside-toplevel,cyclic-import
from mininet.node import OVSSwitch
from mininet.node import OVSSwitch
self.isPatchLink = False
if ( isinstance( node1, OVSSwitch ) and
isinstance( node2, OVSSwitch ) ):
@@ -551,7 +539,6 @@ class OVSLink( Link ):
kwargs.update( cls1=OVSIntf, cls2=OVSIntf )
Link.__init__( self, node1, node2, **kwargs )
# pylint: disable=arguments-differ, signature-differs
def makeIntfPair( self, *args, **kwargs ):
"Usually delegated to OVSSwitch"
if self.isPatchLink:
@@ -561,11 +548,17 @@ class OVSLink( Link ):
class TCLink( Link ):
"Link with TC interfaces"
def __init__( self, *args, **kwargs):
kwargs.setdefault( 'cls1', TCIntf )
kwargs.setdefault( 'cls2', TCIntf )
Link.__init__( self, *args, **kwargs)
"Link with symmetric TC interfaces configured via opts"
def __init__( self, node1, node2, port1=None, port2=None,
intfName1=None, intfName2=None,
addr1=None, addr2=None, **params ):
Link.__init__( self, node1, node2, port1=port1, port2=port2,
intfName1=intfName1, intfName2=intfName2,
cls1=TCIntf,
cls2=TCIntf,
addr1=addr1, addr2=addr2,
params1=params,
params2=params )
class TCULink( TCLink ):
+29 -24
View File
@@ -4,7 +4,6 @@ import logging
from logging import Logger
import types
# Create a new loglevel, 'CLI info', which enables a Mininet user to see only
# the output of the commands they execute, plus any errors or warnings. This
# level is in between info and warning. CLI info-level commands should not be
@@ -15,14 +14,13 @@ LEVELS = { 'debug': logging.DEBUG,
'info': logging.INFO,
'output': OUTPUT,
'warning': logging.WARNING,
'warn': logging.WARNING,
'error': logging.ERROR,
'critical': logging.CRITICAL }
# change this to logging.INFO to get printouts when running unit tests
LOGLEVELDEFAULT = OUTPUT
# default: '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
#default: '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
LOGMSGFORMAT = '%(message)s'
@@ -53,7 +51,7 @@ class StreamHandlerNoNewline( logging.StreamHandler ):
self.flush()
except ( KeyboardInterrupt, SystemExit ):
raise
except: # noqa pylint: disable=bare-except
except:
self.handleError( record )
@@ -97,9 +95,9 @@ class MininetLogger( Logger, object ):
__metaclass__ = Singleton
def __init__( self, name="mininet" ):
def __init__( self ):
Logger.__init__( self, name )
Logger.__init__( self, "mininet" )
# create console handler
ch = StreamHandlerNoNewline()
@@ -107,22 +105,30 @@ class MininetLogger( Logger, object ):
formatter = logging.Formatter( LOGMSGFORMAT )
# add formatter to ch
ch.setFormatter( formatter )
# add ch to lg and initialize log level
# add ch to lg
self.addHandler( ch )
self.ch = ch
self.setLogLevel()
def setLogLevel( self, levelname=None ):
"""Setup loglevel.
Convenience function to support lowercase names.
levelName: level name from LEVELS"""
if levelname and levelname not in LEVELS:
print(LEVELS)
raise Exception( 'setLogLevel: unknown levelname %s' % levelname )
level = LEVELS.get( levelname, LOGLEVELDEFAULT )
self.setLevel( level )
self.ch.setLevel( level )
level = LOGLEVELDEFAULT
if levelname is not None:
if levelname not in LEVELS:
raise Exception( 'unknown levelname seen in setLogLevel' )
else:
level = LEVELS.get( levelname, level )
self.setLevel( level )
self.handlers[ 0 ].setLevel( level )
# pylint: disable=method-hidden
# "An attribute inherited from mininet.log hide this method" (sic)
# Not sure why this is occurring - this function definitely gets called.
# See /usr/lib/python2.5/logging/__init__.py; modified from warning()
def output( self, msg, *args, **kwargs ):
"""Log 'msg % args' with severity 'OUTPUT'.
@@ -131,11 +137,14 @@ class MininetLogger( Logger, object ):
logger.warning("Houston, we have a %s", "cli output", exc_info=1)
"""
if getattr( self.manager, 'disabled', 0 ) >= OUTPUT:
if self.manager.disable >= OUTPUT:
return
if self.isEnabledFor( OUTPUT ):
self._log( OUTPUT, msg, args, kwargs )
# pylint: enable=method-hidden
lg = MininetLogger()
# Make things a bit more convenient by adding aliases
# (info, warn, error, debug) and allowing info( 'this', 'is', 'OK' )
@@ -159,14 +168,10 @@ def makeListCompatible( fn ):
setattr( newfn, '__doc__', fn.__doc__ )
return newfn
_loggers = lg.info, lg.output, lg.warn, lg.error, lg.debug
_loggers = tuple( makeListCompatible( logger )
for logger in _loggers )
lg.info, lg.output, lg.warn, lg.error, lg.debug = _loggers
info, output, warn, error, debug = _loggers
# Initialize logger and logging functions
logging.setLoggerClass( MininetLogger )
lg = logging.getLogger( "mininet" )
_loggers = lg.info, lg.output, lg.warning, lg.error, lg.debug
_loggers = tuple( makeListCompatible( logger ) for logger in _loggers )
lg.info, lg.output, lg.warning, lg.error, lg.debug = _loggers
info, output, warning, error, debug = _loggers
warn = warning # alternate/old name
setLogLevel = lg.setLogLevel
+1 -5
View File
@@ -1,11 +1,8 @@
"Module dependency utility functions for Mininet."
from os import environ
from sys import exit # pylint: disable=redefined-builtin
from mininet.util import quietRun, BaseString
from mininet.log import info, error, debug
from os import environ
def lsmod():
"Return output of lsmod."
@@ -21,7 +18,6 @@ def modprobe( mod ):
mod: module string"""
return quietRun( [ 'modprobe', mod ] )
OF_KMOD = 'ofdatapath'
OVS_KMOD = 'openvswitch_mod' # Renamed 'openvswitch' in OVS 1.7+/Linux 3.5+
TUN = 'tun'
+2 -4
View File
@@ -92,7 +92,6 @@ import select
import signal
import random
from sys import exit # pylint: disable=redefined-builtin
from time import sleep
from itertools import chain, groupby
from math import ceil
@@ -109,12 +108,11 @@ from mininet.util import ( quietRun, fixLimits, numCores, ensureRoot,
from mininet.term import cleanUpScreens, makeTerms
# Mininet version: should be consistent with README and LICENSE
VERSION = "2.3.0b2"
VERSION = "2.3.0d4"
class Mininet( object ):
"Network emulation with hosts spawned in network namespaces."
# pylint: disable=too-many-arguments
def __init__( self, topo=None, switch=OVSKernelSwitch, host=Host,
controller=DefaultController, link=Link, intf=Intf,
build=True, xterms=False, cleanup=False, ipBase='10.0.0.0/8',
@@ -175,7 +173,7 @@ class Mininet( object ):
if topo and build:
self.build()
def waitConnected( self, timeout=5, delay=.5 ):
def waitConnected( self, timeout=None, delay=.5 ):
"""wait for each switch to connect to a controller,
up to 5 seconds
timeout: time to wait, or None to wait indefinitely
+29 -54
View File
@@ -57,22 +57,17 @@ import pty
import re
import signal
import select
from distutils.version import StrictVersion
from re import findall
from subprocess import Popen, PIPE
from sys import exit # pylint: disable=redefined-builtin
from time import sleep
from mininet.log import info, error, warn, debug
from mininet.util import ( quietRun, errRun, errFail, moveIntf, isShellBuiltin,
numCores, retry, mountCgroups, BaseString, decode,
encode, getincrementaldecoder, Python3, which )
encode, Python3 )
from mininet.moduledeps import moduleDeps, pathCheck, TUN
from mininet.link import Link, Intf, TCIntf, OVSIntf
# pylint: disable=too-many-arguments
from re import findall
from distutils.version import StrictVersion
class Node( object ):
"""A virtual network node is simply a shell in a network namespace.
@@ -99,13 +94,9 @@ class Node( object ):
# Stash configuration parameters for future reference
self.params = params
# dict of port numbers to interfacse
self.intfs = {}
# dict of interfaces to port numbers
# todo: replace with Port objects, eventually ?
self.ports = {}
self.intfs = {} # dict of port numbers to interfaces
self.ports = {} # dict of interfaces to port numbers
# replace with Port objects, eventually ?
self.nameToIntf = {} # dict of interface names to Intfs
# Make pylint happy
@@ -115,9 +106,6 @@ class Node( object ):
self.waiting = False
self.readbuf = ''
# Incremental decoder for buffered reading
self.decoder = getincrementaldecoder()
# Start command interpreter shell
self.master, self.slave = None, None # pylint
self.startShell()
@@ -241,19 +229,19 @@ class Node( object ):
# Subshell I/O, commands and control
def read( self, size=1024 ):
def read( self, maxbytes=1024 ):
"""Buffered read from node, potentially blocking.
size: maximum number of characters to return"""
maxbytes: maximum number of bytes to return"""
count = len( self.readbuf )
if count < size:
data = os.read( self.stdout.fileno(), size - count )
self.readbuf += self.decoder.decode( data )
if size >= len( self.readbuf ):
if count < maxbytes:
data = decode( os.read( self.stdout.fileno(), maxbytes - count ) )
self.readbuf += data
if maxbytes >= len( self.readbuf ):
result = self.readbuf
self.readbuf = ''
else:
result = self.readbuf[ :size ]
self.readbuf = self.readbuf[ size: ]
result = self.readbuf[ :maxbytes ]
self.readbuf = self.readbuf[ maxbytes: ]
return result
def readline( self ):
@@ -293,7 +281,6 @@ class Node( object ):
returns: result of poll()"""
if len( self.readbuf ) == 0:
return self.pollOut.poll( timeoutms )
return None
def sendCmd( self, *args, **kwargs ):
"""Send a command, followed by a command to echo a sentinel,
@@ -387,7 +374,6 @@ class Node( object ):
return self.waitOutput( verbose )
else:
warn( '(%s exited - ignoring cmd%s)\n' % ( self, args ) )
return None
def cmdPrint( self, *args):
"""Call cmd and printing its output
@@ -480,7 +466,6 @@ class Node( object ):
else:
warn( '*** defaultIntf: warning:', self.name,
'has no interfaces\n' )
return None
def intf( self, intf=None ):
"""Return our interface object with given string name,
@@ -594,10 +579,10 @@ class Node( object ):
value may also be list or dict"""
name, value = list( param.items() )[ 0 ]
if value is None:
return None
return
f = getattr( self, method, None )
if not f:
return None
return
if isinstance( value, list ):
result = f( *value )
elif isinstance( value, dict ):
@@ -665,12 +650,11 @@ class Node( object ):
@classmethod
def checkSetup( cls ):
"Make sure our class and superclasses are set up"
clas = cls
while clas and not getattr( clas, 'isSetup', True ):
clas.setup()
clas.isSetup = True
while cls and not getattr( cls, 'isSetup', True ):
cls.setup()
cls.isSetup = True
# Make pylint happy
clas = getattr( type( clas ), '__base__', None )
cls = getattr( type( cls ), '__base__', None )
@classmethod
def setup( cls ):
@@ -851,7 +835,6 @@ class CPULimitedHost( Host ):
errFail( 'cgclassify -g cpuset:/%s %s' % (
self.name, self.pid ) )
# pylint: disable=arguments-differ
def config( self, cpu=-1, cores=None, **params ):
"""cpu: desired overall system CPU fraction
cores: (real) core(s) this host can run on
@@ -944,7 +927,6 @@ class Switch( Node ):
else:
error( '*** Error: %s has execed and cannot accept commands' %
self.name )
return None
def connected( self ):
"Is the switch connected to a controller? (override this method)"
@@ -1130,7 +1112,6 @@ class OVSSwitch( Switch ):
if self.batch:
cmd = ' '.join( str( arg ).strip() for arg in args )
self.commands.append( cmd )
return None
else:
return self.cmd( 'ovs-vsctl', *args, **kwargs )
@@ -1318,7 +1299,7 @@ class OVSBridge( OVSSwitch ):
"Are we forwarding yet?"
if self.stp:
status = self.dpctl( 'show' )
return 'STP_FORWARD' in status and 'STP_LEARN' not in status
return 'STP_FORWARD' in status and not 'STP_LEARN' in status
else:
return True
@@ -1398,12 +1379,10 @@ class Controller( Node ):
OpenFlow controller."""
def __init__( self, name, inNamespace=False, command='controller',
cargs='ptcp:%d', cdir=None, ip="127.0.0.1",
port=6653, protocol='tcp', verbose=False, **params ):
cargs='-v ptcp:%d', cdir=None, ip="127.0.0.1",
port=6653, protocol='tcp', **params ):
self.command = command
self.cargs = cargs
if verbose:
cargs = '-v ' + cargs
self.cdir = cdir
# Accept 'ip:port' syntax as shorthand
if ':' in ip:
@@ -1445,7 +1424,6 @@ class Controller( Node ):
' 1>' + cout + ' 2>' + cout + ' &' )
self.execed = False
# pylint: disable=arguments-differ,signature-differs
def stop( self, *args, **kwargs ):
"Stop controller."
self.cmd( 'kill %' + self.command )
@@ -1469,7 +1447,7 @@ class Controller( Node ):
@classmethod
def isAvailable( cls ):
"Is controller available?"
return which( 'controller' )
return quietRun( 'which controller' )
class OVSController( Controller ):
@@ -1481,9 +1459,9 @@ class OVSController( Controller ):
@classmethod
def isAvailable( cls ):
return (which( 'ovs-controller' ) or
which( 'test-controller' ) or
which( 'ovs-testcontroller' ))
return ( quietRun( 'which ovs-controller' ) or
quietRun( 'which test-controller' ) or
quietRun( 'which ovs-testcontroller' ) ).strip()
class NOX( Controller ):
"Controller to run a NOX application."
@@ -1496,7 +1474,7 @@ class NOX( Controller ):
warn( 'warning: no NOX modules specified; '
'running packetdump only\n' )
noxArgs = [ 'packetdump' ]
elif not isinstance( noxArgs, ( list, tuple ) ):
elif type( noxArgs ) not in ( list, tuple ):
noxArgs = [ noxArgs ]
if 'NOX_CORE_DIR' not in os.environ:
@@ -1522,7 +1500,7 @@ class Ryu( Controller ):
warn( 'warning: no Ryu modules specified; '
'running simple_switch only\n' )
ryuArgs = [ ryuCoreDir + 'simple_switch.py' ]
elif not isinstance( ryuArgs, ( list, tuple ) ):
elif type( ryuArgs ) not in ( list, tuple ):
ryuArgs = [ ryuArgs ]
Controller.__init__( self, name,
@@ -1549,7 +1527,6 @@ class RemoteController( Controller ):
"Overridden to do nothing."
return
# pylint: disable=arguments-differ
def stop( self ):
"Overridden to do nothing."
return
@@ -1581,7 +1558,6 @@ class RemoteController( Controller ):
else:
return True
DefaultControllers = ( Controller, OVSController )
def findController( controllers=DefaultControllers ):
@@ -1589,7 +1565,6 @@ def findController( controllers=DefaultControllers ):
for controller in controllers:
if controller.isAvailable():
return controller
return None
def DefaultController( name, controllers=DefaultControllers, **kwargs ):
"Find a controller that is available and instantiate it"
+15 -24
View File
@@ -84,36 +84,13 @@ class NAT( Node ):
self.flush = flush
self.forwardState = self.cmd( 'sysctl -n net.ipv4.ip_forward' ).strip()
def setManualConfig( self, intf ):
"""Prevent network-manager/networkd from messing with our interface
by specifying manual configuration in /etc/network/interfaces"""
cfile = '/etc/network/interfaces'
line = '\niface %s inet manual\n' % intf
try:
with open( cfile ) as f:
config = f.read()
except IOError:
config = ''
if ( line ) not in config:
info( '*** Adding "' + line.strip() + '" to ' + cfile + '\n' )
with open( cfile, 'a' ) as f:
f.write( line )
# Probably need to restart network manager to be safe -
# hopefully this won't disconnect you
self.cmd( 'service network-manager restart || netplan apply' )
# pylint: disable=arguments-differ
def config( self, **params ):
"""Configure the NAT and iptables"""
super( NAT, self).config( **params )
if not self.localIntf:
self.localIntf = self.defaultIntf()
self.setManualConfig( self.localIntf )
# Now we can configure manually without interference
super( NAT, self).config( **params )
if self.flush:
self.cmd( 'sysctl net.ipv4.ip_forward=0' )
self.cmd( 'iptables -F' )
@@ -137,6 +114,20 @@ class NAT( Node ):
# Instruct the kernel to perform forwarding
self.cmd( 'sysctl net.ipv4.ip_forward=1' )
# Prevent network-manager from messing with our interface
# by specifying manual configuration in /etc/network/interfaces
intf = self.localIntf
cfile = '/etc/network/interfaces'
line = '\niface %s inet manual\n' % intf
config = open( cfile ).read()
if ( line ) not in config:
info( '*** Adding "' + line.strip() + '" to ' + cfile + '\n' )
with open( cfile, 'a' ) as f:
f.write( line )
# Probably need to restart network-manager to be safe -
# hopefully this won't disconnect you
self.cmd( 'service network-manager restart' )
def terminate( self ):
"Stop NAT/forwarding between Mininet and external network"
# Remote NAT rules
+1 -1
View File
@@ -50,7 +50,7 @@ def makeTerm( node, title='Node', term='xterm', display=None, cmd='bash'):
}
if term not in cmds:
error( 'invalid terminal type: %s' % term )
return None
return
display, tunnel = tunnelX11( node, display )
if display is None:
return []
-1
View File
@@ -25,7 +25,6 @@ def runTests( testDir, verbosity=1 ):
.run( testSuite ).wasSuccessful() )
sys.exit( 0 if success else 1 )
if __name__ == '__main__':
setLogLevel( 'warning' )
# get the directory containing example tests
+3 -4
View File
@@ -45,7 +45,7 @@ class testOptionsTopoCommon( object ):
@staticmethod
def tearDown():
"Clean up if necessary"
if sys.exc_info() != ( None, None, None ):
if sys.exc_info != ( None, None, None ):
cleanup()
def runOptionsTopoTest( self, n, msg, hopts=None, lopts=None ):
@@ -95,7 +95,7 @@ class testOptionsTopoCommon( object ):
CPU_FRACTION = 0.1
CPU_TOLERANCE = 0.8 # CPU fraction below which test should fail
hopts = { 'cpu': CPU_FRACTION }
# self.runOptionsTopoTest( N, hopts=hopts )
#self.runOptionsTopoTest( N, hopts=hopts )
mn = Mininet( SingleSwitchOptionsTopo( n=N, hopts=hopts ),
host=CPULimitedHost, switch=self.switchClass,
@@ -118,7 +118,7 @@ class testOptionsTopoCommon( object ):
% ( CPU_FRACTION * 100, hostUsage, N, hoptsStr,
self.switchClass ) )
for pct in results:
# divide cpu by 100 to convert from percentage to fraction
#divide cpu by 100 to convert from percentage to fraction
self.assertWithinTolerance( pct/100, CPU_FRACTION,
CPU_TOLERANCE, msg )
@@ -263,7 +263,6 @@ class testOptionsTopoUserspace( testOptionsTopoCommon, unittest.TestCase ):
longMessage = True
switchClass = UserSwitch
if __name__ == '__main__':
setLogLevel( 'warning' )
unittest.main()
+1 -1
View File
@@ -26,7 +26,7 @@ class testSingleSwitchCommon( object ):
@staticmethod
def tearDown():
"Clean up if necessary"
if sys.exc_info() != ( None, None, None ):
if sys.exc_info != ( None, None, None ):
cleanup()
def testMinimal( self ):
-1
View File
@@ -26,7 +26,6 @@ class TestPtyLeak( unittest.TestCase ):
assert ( host.slave, host.master ) == oldptys
net.stop()
if __name__ == '__main__':
unittest.main()
cleanup()
+1 -2
View File
@@ -24,7 +24,7 @@ class TestSwitchDpidAssignmentOVS( unittest.TestCase ):
"Clean up if necessary"
# satisfy pylint
assert self
if sys.exc_info() != ( None, None, None ):
if sys.exc_info != ( None, None, None ):
cleanup()
def testDefaultDpid( self ):
@@ -95,7 +95,6 @@ class testSwitchUserspace( TestSwitchDpidAssignmentOVS ):
"Test dpid assignment of Userspace switch."
switchClass = UserSwitch
if __name__ == '__main__':
setLogLevel( 'warning' )
unittest.main()
-40
View File
@@ -1,40 +0,0 @@
#!/usr/bin/env python
"""Package: mininet
Test functions defined in mininet.util."""
import unittest
from mininet.util import quietRun
class testQuietRun( unittest.TestCase ):
"""Test quietRun that runs a command and returns its merged output from
STDOUT and STDIN"""
@staticmethod
def getEchoCmd( n ):
"Return a command that will print n characters"
return "echo -n " + "x" * n
def testEmpty( self ):
"Run a command that prints nothing"
output = quietRun(testQuietRun.getEchoCmd( 0 ) )
self.assertEqual( 0, len( output ) )
def testOneRead( self ):
"""Run a command whose output is entirely read on the first call if
each call reads at most 1024 characters
"""
for n in [ 42, 1024 ]:
output = quietRun( testQuietRun.getEchoCmd( n ) )
self.assertEqual( n, len( output ) )
def testMultipleReads( self ):
"Run a command whose output is not entirely read on the first read"
for n in [ 1025, 4242 ]:
output = quietRun(testQuietRun.getEchoCmd( n ) )
self.assertEqual( n, len( output ) )
if __name__ == "__main__":
unittest.main()
+18 -31
View File
@@ -6,15 +6,12 @@ Tests for the Mininet Walkthrough
TODO: missing xterm test
"""
import unittest
import os
import re
import unittest
from distutils.version import StrictVersion
from sys import stdout
from mininet.util import quietRun, pexpect
from mininet.clean import cleanup
from distutils.version import StrictVersion
from time import sleep
def tsharkVersion():
@@ -31,11 +28,6 @@ class testWalkthrough( unittest.TestCase ):
prompt = 'mininet>'
@staticmethod
def setup():
"Be paranoid and run cleanup() before each test"
cleanup()
# PART 1
def testHelp( self ):
"Check the usage message"
@@ -51,18 +43,17 @@ class testWalkthrough( unittest.TestCase ):
tshark = pexpect.spawn( 'tshark -i lo -R of' )
else:
tshark = pexpect.spawn( 'tshark -i lo -Y openflow_v1' )
tshark.expect( [ 'Capturing on lo', "Capturing on 'Loopback" ] )
tshark.expect( [ 'Capturing on lo', "Capturing on 'Loopback'" ] )
mn = pexpect.spawn( 'mn --test pingall' )
mn.expect( '0% dropped' )
tshark.expect( [ '74 Hello', '74 of_hello', '74 Type: OFPT_HELLO' ] )
tshark.sendintr()
mn.expect( pexpect.EOF )
tshark.expect( 'aptured' ) # 'xx packets captured'
tshark.expect( pexpect.EOF )
def testBasic( self ):
"Test basic CLI commands (help, nodes, net, dump)"
p = pexpect.spawn( 'mn -w' )
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
# help command
p.sendline( 'help' )
@@ -76,7 +67,7 @@ class testWalkthrough( unittest.TestCase ):
p.expect( self.prompt )
# net command
p.sendline( 'net' )
expected = list( nodes )
expected = [ x for x in nodes ]
while len( expected ) > 0:
index = p.expect( expected )
node = p.match.group( 0 )
@@ -101,7 +92,7 @@ class testWalkthrough( unittest.TestCase ):
def testHostCommands( self ):
"Test ifconfig and ps on h1 and s1"
p = pexpect.spawn( 'mn -w' )
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
# Third pattern is a local interface beginning with 'eth' or 'en'
interfaces = [ r'h1-eth0[:\s]', r's1-eth1[:\s]',
@@ -112,7 +103,7 @@ class testWalkthrough( unittest.TestCase ):
ifcount = 0
while True:
index = p.expect( interfaces )
if index in (0, 3):
if index == 0 or index == 3:
ifcount += 1
elif index == 1:
self.fail( 's1 interface displayed in "h1 ifconfig"' )
@@ -128,7 +119,7 @@ class testWalkthrough( unittest.TestCase ):
index = p.expect( interfaces )
if index == 0:
self.fail( 'h1 interface displayed in "s1 ifconfig"' )
elif index in (1, 2, 3):
elif index == 1 or index == 2 or index == 3:
ifcount += 1
else:
break
@@ -153,7 +144,7 @@ class testWalkthrough( unittest.TestCase ):
def testConnectivity( self ):
"Test ping and pingall"
p = pexpect.spawn( 'mn -w' )
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 h2' )
p.expect( '1 packets transmitted, 1 received' )
@@ -170,16 +161,14 @@ class testWalkthrough( unittest.TestCase ):
httpserver = 'SimpleHTTPServer'
else:
httpserver = 'http.server'
p = pexpect.spawn( 'mn -w', logfile=stdout )
p.expect( self.prompt )
p.sendline( 'h1 python -m %s 80 >& /dev/null &' % httpserver )
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
p.sendline( 'h1 python -m %s 80 &' % httpserver )
# The walkthrough doesn't specify a delay here, and
# we also don't read the output (also a possible problem),
# but for now let's wait a number of seconds to make
# but for now let's wait a couple of seconds to make
# it less likely to fail due to the race condition.
p.sendline( 'px from mininet.util import waitListening;'
'waitListening(h1, port=80, timeout=30)' )
sleep( 2 )
p.expect( self.prompt )
p.sendline( ' h2 wget -O - h1' )
p.expect( '200 OK' )
@@ -224,9 +213,7 @@ class testWalkthrough( unittest.TestCase ):
def testLinkChange( self ):
"Test TCLink bw and delay"
p = pexpect.spawn( 'mn -w --link tc,bw=10,delay=10ms' )
p.expect( self.prompt )
p.sendline( 'h1 route && ping -c1 h2' )
p = pexpect.spawn( 'mn --link tc,bw=10,delay=10ms' )
# test bw
p.expect( self.prompt )
p.sendline( 'iperf' )
@@ -311,7 +298,7 @@ class testWalkthrough( unittest.TestCase ):
ifcount = 0
while True:
index = p.expect( interfaces )
if index in (1, 3):
if index == 1 or index == 3:
ifcount += 1
elif index == 0:
self.fail( 'h1 interface displayed in "s1 ifconfig"' )
@@ -332,7 +319,7 @@ class testWalkthrough( unittest.TestCase ):
# PART 3
def testPythonInterpreter( self ):
"Test py and px by checking IP for h1 and adding h3"
p = pexpect.spawn( 'mn -w' )
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
# test host IP
p.sendline( 'py h1.IP()' )
@@ -354,7 +341,7 @@ class testWalkthrough( unittest.TestCase ):
def testLink( self ):
"Test link CLI command using ping"
p = pexpect.spawn( 'mn -w' )
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
p.sendline( 'link s1 h1 down' )
p.expect( self.prompt )
+3 -5
View File
@@ -13,9 +13,6 @@ setup for testing, and can even be emulated with the Mininet package.
from mininet.util import irange, natural, naturalSeq
# pylint: disable=too-many-arguments
class MultiGraph( object ):
"Utility class to track nodes and edges - replaces networkx.MultiGraph"
@@ -37,7 +34,7 @@ class MultiGraph( object ):
key: optional key
attr_dict: optional attribute dict
attrs: more attributes
warning: updates attr_dict with attrs"""
warning: udpates attr_dict with attrs"""
attr_dict = {} if attr_dict is None else attr_dict
attr_dict.update( attrs )
self.node.setdefault( src, {} )
@@ -159,7 +156,8 @@ class Topo( object ):
port1, port2 = self.addPort( node1, node2, port1, port2 )
opts = dict( opts )
opts.update( node1=node1, node2=node2, port1=port1, port2=port2 )
return self.g.add_edge(node1, node2, key, opts )
self.g.add_edge(node1, node2, key, opts )
return key
def nodes( self, sort=True ):
"Return nodes in graph"
+41 -81
View File
@@ -1,64 +1,35 @@
"Utility functions for Mininet."
import codecs
import os
import re
import sys
from fcntl import fcntl, F_GETFL, F_SETFL
from functools import partial
from os import O_NONBLOCK
from resource import getrlimit, setrlimit, RLIMIT_NPROC, RLIMIT_NOFILE
from select import poll, POLLIN, POLLHUP
from subprocess import call, check_call, Popen, PIPE, STDOUT
from sys import exit # pylint: disable=redefined-builtin
from time import sleep
from mininet.log import output, info, error, warn, debug
# pylint: disable=too-many-arguments
from time import sleep
from resource import getrlimit, setrlimit, RLIMIT_NPROC, RLIMIT_NOFILE
from select import poll, POLLIN, POLLHUP
from subprocess import call, check_call, Popen, PIPE, STDOUT
import re
from fcntl import fcntl, F_GETFL, F_SETFL
from os import O_NONBLOCK
import os
from functools import partial
import sys
# Python 2/3 compatibility
Python3 = sys.version_info[0] == 3
BaseString = str if Python3 else getattr( str, '__base__' )
Encoding = 'utf-8' if Python3 else None
class NullCodec( object ):
"Null codec for Python 2"
@staticmethod
def decode( buf ):
"Null decode"
return buf
@staticmethod
def encode( buf ):
"Null encode"
return buf
if Python3:
def decode( buf ):
"Decode buffer for Python 3"
return buf.decode( Encoding )
def encode( buf ):
"Encode buffer for Python 3"
return buf.encode( Encoding )
getincrementaldecoder = codecs.getincrementaldecoder( Encoding )
else:
decode, encode = NullCodec.decode, NullCodec.encode
def getincrementaldecoder():
"Return null codec for Python 2"
return NullCodec
def decode( s ):
"Decode a byte string if needed for Python 3"
return s.decode( Encoding ) if Python3 else s
def encode( s ):
"Encode a byte string if needed for Python 3"
return s.encode( Encoding ) if Python3 else s
try:
# pylint: disable=import-error
oldpexpect = None
import pexpect as oldpexpect
# pylint: enable=import-error
class Pexpect( object ):
"Custom pexpect that is compatible with str"
@staticmethod
@@ -148,21 +119,20 @@ def errRun( *cmd, **kwargs ):
out, err = '', ''
poller = poll()
poller.register( popen.stdout, POLLIN )
fdToFile = { popen.stdout.fileno(): popen.stdout }
fdToDecoder = { popen.stdout.fileno(): getincrementaldecoder() }
fdtofile = { popen.stdout.fileno(): popen.stdout }
outDone, errDone = False, True
if popen.stderr:
fdToFile[ popen.stderr.fileno() ] = popen.stderr
fdToDecoder[ popen.stderr.fileno() ] = getincrementaldecoder()
fdtofile[ popen.stderr.fileno() ] = popen.stderr
poller.register( popen.stderr, POLLIN )
errDone = False
while not outDone or not errDone:
readable = poller.poll()
for fd, event in readable:
f = fdToFile[ fd ]
decoder = fdToDecoder[ fd ]
if event & ( POLLIN | POLLHUP ):
data = decoder.decode( f.read( 1024 ) )
f = fdtofile[ fd ]
if event & POLLIN:
data = f.read( 1024 )
if Python3:
data = data.decode( Encoding )
if echo:
output( data )
if f == popen.stdout:
@@ -173,7 +143,7 @@ def errRun( *cmd, **kwargs ):
err += data
if data == '':
errDone = True
else: # something unexpected
else: # POLLHUP or something unexpected
if f == popen.stdout:
outDone = True
elif f == popen.stderr:
@@ -201,26 +171,19 @@ def quietRun( cmd, **kwargs ):
"Run a command and return merged stdout and stderr"
return errRun( cmd, stderr=STDOUT, **kwargs )[ 0 ]
def which(cmd, **kwargs ):
"Run a command and return merged stdout and stderr"
out, _, ret = errRun( ["which", cmd], stderr=STDOUT, **kwargs )
return out.rstrip() if ret == 0 else None
# pylint: enable=maybe-no-member
def isShellBuiltin( cmd ):
"Return True if cmd is a bash builtin."
if isShellBuiltin.builtIns is None:
isShellBuiltin.builtIns = set(quietRun( 'bash -c enable' ).split())
isShellBuiltin.builtIns = quietRun( 'bash -c enable' )
space = cmd.find( ' ' )
if space > 0:
cmd = cmd[ :space]
return cmd in isShellBuiltin.builtIns
isShellBuiltin.builtIns = None
# Interface management
#
# Interfaces are managed as strings which are simply the
@@ -407,7 +370,7 @@ def netParse( ipstr ):
if '/' in ipstr:
ip, pf = ipstr.split( '/' )
prefixLen = int( pf )
# if no prefix is specified, set the prefix to 24
#if no prefix is specified, set the prefix to 24
else:
ip = ipstr
prefixLen = 24
@@ -450,28 +413,24 @@ def pmonitor(popens, timeoutms=500, readline=True,
terminates: when all EOFs received"""
poller = poll()
fdToHost = {}
fdToDecoder = {}
for host, popen in popens.items():
fd = popen.stdout.fileno()
fdToHost[ fd ] = host
fdToDecoder[ fd ] = getincrementaldecoder()
poller.register( fd, POLLIN )
poller.register( fd, POLLIN | POLLHUP )
flags = fcntl( fd, F_GETFL )
fcntl( fd, F_SETFL, flags | O_NONBLOCK )
# pylint: disable=too-many-nested-blocks
while popens:
fds = poller.poll( timeoutms )
if fds:
for fd, event in fds:
host = fdToHost[ fd ]
decoder = fdToDecoder[ fd ]
popen = popens[ host ]
if event & ( POLLIN | POLLHUP ):
if event & POLLIN or event & POLLHUP:
while True:
try:
f = popen.stdout
line = decoder.decode( f.readline() if readline
else f.read( readmax ) )
line = decode( f.readline() if readline
else f.read( readmax ) )
except IOError:
line = ''
if line == '':
@@ -486,19 +445,19 @@ def pmonitor(popens, timeoutms=500, readline=True,
# Other stuff we use
def sysctlTestAndSet( name, limit ):
"Helper function to set sysctl limits"
# convert non-directory names into directory names
#convert non-directory names into directory names
if '/' not in name:
name = '/proc/sys/' + name.replace( '.', '/' )
# read limit
#read limit
with open( name, 'r' ) as readFile:
oldLimit = readFile.readline()
if isinstance( limit, int ):
# compare integer limits before overriding
#compare integer limits before overriding
if int( oldLimit ) < limit:
with open( name, 'w' ) as writeFile:
writeFile.write( "%d" % limit )
else:
# overwrite non-integer limits
#overwrite non-integer limits
with open( name, 'w' ) as writeFile:
writeFile.write( limit )
@@ -515,21 +474,21 @@ def fixLimits():
try:
rlimitTestAndSet( RLIMIT_NPROC, 8192 )
rlimitTestAndSet( RLIMIT_NOFILE, 16384 )
# Increase open file limit
#Increase open file limit
sysctlTestAndSet( 'fs.file-max', 10000 )
# Increase network buffer space
#Increase network buffer space
sysctlTestAndSet( 'net.core.wmem_max', 16777216 )
sysctlTestAndSet( 'net.core.rmem_max', 16777216 )
sysctlTestAndSet( 'net.ipv4.tcp_rmem', '10240 87380 16777216' )
sysctlTestAndSet( 'net.ipv4.tcp_wmem', '10240 87380 16777216' )
sysctlTestAndSet( 'net.core.netdev_max_backlog', 5000 )
# Increase arp cache size
#Increase arp cache size
sysctlTestAndSet( 'net.ipv4.neigh.default.gc_thresh1', 4096 )
sysctlTestAndSet( 'net.ipv4.neigh.default.gc_thresh2', 8192 )
sysctlTestAndSet( 'net.ipv4.neigh.default.gc_thresh3', 16384 )
# Increase routing table size
#Increase routing table size
sysctlTestAndSet( 'net.ipv4.route.max_size', 32768 )
# Increase number of PTYs for nodes
#Increase number of PTYs for nodes
sysctlTestAndSet( 'kernel.pty.max', 20000 )
# pylint: disable=broad-except
except Exception:
@@ -670,6 +629,7 @@ def ensureRoot():
if os.getuid() != 0:
error( '*** Mininet must run as root.\n' )
exit( 1 )
return
def waitListening( client=None, server='127.0.0.1', port=80, timeout=None ):
"""Wait until server is listening on port.
+42 -81
View File
@@ -1,7 +1,7 @@
#!/bin/bash
#!/usr/bin/env bash
# Mininet install script for Ubuntu and Debian
# Original author: Brandon Heller
# Mininet install script for Ubuntu (and Debian Wheezy+)
# Brandon Heller (brandonh@stanford.edu)
# Fail on error
set -e
@@ -102,26 +102,14 @@ function version_ge {
[ "$1" == "$latest" ]
}
# Attempt to detect Python version
# Attempt to identify Python version
PYTHON=${PYTHON:-python}
PRINTVERSION='import sys; print(sys.version_info)'
PYTHON_VERSION=unknown
for python in $PYTHON python2 python3; do
if $python -c "$PRINTVERSION" |& grep 'major=2'; then
PYTHON=$python; PYTHON_VERSION=2; PYPKG=python
break
elif $python -c "$PRINTVERSION" |& grep 'major=3'; then
PYTHON=$python; PYTHON_VERSION=3; PYPKG=python3
break
fi
done
if [ "$PYTHON_VERSION" == unknown ]; then
echo "Can't find a working python command ('$PYTHON' doesn't work.)"
echo "You may wish to export PYTHON or install a working 'python'."
exit 1
if $PYTHON --version |& grep 'Python 2' > /dev/null; then
PYTHON_VERSION=2; PYPKG=python
else
PYTHON_VERSION=3; PYPKG=python3
fi
echo "Detected Python (${PYTHON}) version ${PYTHON_VERSION}"
echo "${PYTHON} is version ${PYTHON_VERSION}"
# Kernel Deb pkg to be removed:
KERNEL_IMAGE_OLD=linux-image-2.6.26-33-generic
@@ -171,29 +159,10 @@ function mn_deps {
ethtool help2man python-pyflakes python3-pylint \
python-pep8 ${PYPKG}-pexpect ${PYPKG}-tk
else # Debian/Ubuntu
pf=pyflakes
# Starting around 20.04, installing pyflakes instead of pyflakes3
# causes Python 2 to be installed, which is exactly NOT what we want.
if [ `expr $RELEASE '>=' 20.04` = "1" ]; then
pf=pyflakes3
fi
$install gcc make socat psmisc xterm ssh iperf telnet \
ethtool help2man $pf pylint pep8 \
net-tools \
${PYPKG}-pexpect ${PYPKG}-tk
# Install pip
$install ${PYPKG}-pip || $install ${PYPKG}-pip-whl
if ! ${PYTHON} -m pip -V; then
if [ $PYTHON_VERSION == 2 ]; then
wget https://bootstrap.pypa.io/2.6/get-pip.py
else
wget https://bootstrap.pypa.io/get-pip.py
fi
sudo ${PYTHON} get-pip.py
rm get-pip.py
fi
cgroup-bin ethtool help2man pyflakes pylint pep8 \
${PYPKG}-setuptools ${PYPKG}-pexpect ${PYPKG}-tk
$install iproute2 || $install iproute
$install cgroup-tools || $install cgroup-bin
fi
echo "Installing Mininet core"
@@ -202,9 +171,9 @@ function mn_deps {
popd
}
# Install Mininet documentation dependencies
function mn_doc {
echo "Installing Mininet documentation dependencies"
# Install Mininet developer dependencies
function mn_dev {
echo "Installing Mininet developer dependencies"
$install doxygen doxypy texlive-fonts-recommended
if ! $install doxygen-latex; then
echo "doxygen-latex not needed"
@@ -369,8 +338,8 @@ function ubuntuOvs {
# Get build deps
$install build-essential fakeroot debhelper autoconf automake libssl-dev \
pkg-config bzip2 openssl ${PYPKG}-all procps ${PYPKG}-qt4 \
${PYPKG}-zopeinterface ${PYPKG}-twisted-conch dkms dh-python dh-autoreconf \
pkg-config bzip2 openssl python-all procps python-qt4 \
python-zopeinterface python-twisted-conch dkms dh-python dh-autoreconf \
uuid-runtime
# Build OVS
@@ -378,15 +347,20 @@ function ubuntuOvs {
cd $BUILD_DIR/openvswitch/openvswitch-$OVS_RELEASE
DEB_BUILD_OPTIONS='parallel=$parallel nocheck' fakeroot debian/rules binary
cd ..
# Install packages
if [ -e libopenvswitch_$OVS_RELEASE*.deb ]; then
$pkginst libopenvswitch_$OVS_RELEASE*.deb 2>/dev/null
fi
for pkg in common datapath-dkms pki switch; do
pkg=openvswitch-${pkg}_$OVS_RELEASE*.deb
echo "Installing $pkg"
$pkginst $pkg
done
if $pkginst openvswitch-controller_$OVS_RELEASE*.deb 2>/dev/null; then
echo "Ignoring error installing openvswitch-controller"
if [ -e openvswitch-controller_$OVS_RELEASE*.deb ]; then
$pkginst openvswitch-controller_$OVS_RELEASE*.deb 2>/dev/null
fi
# Ubuntu/Debian will mask a service if you uninstall it
sudo systemctl unmask openvswitch-switch || true
/sbin/modinfo openvswitch
sudo ovs-vsctl show
# Switch can run on its own, but
@@ -440,19 +414,13 @@ function ovs {
# Switch can run on its own, but
# Mininet should control the controller
# This appears to only be an issue on Ubuntu/Debian
if sudo service $OVSC stop 2>/dev/null; then
if sudo service $OVSC stop; then
echo "Stopped running controller"
fi
if [ -e /etc/init.d/$OVSC ]; then
sudo update-rc.d $OVSC disable
fi
fi
# This service seems to hang on 20.04
if systemctl list-units | \
grep status netplan-ovs-cleanup.service>&/dev/null; then
echo 'TimeoutSec=10' | sudo EDITOR='tee -a' \
sudo systemctl edit --full netplan-ovs-cleanup.service
fi
}
function remove_ovs {
@@ -506,7 +474,7 @@ function ryu {
# install Ryu dependencies"
$install autoconf automake g++ libtool python make
if [ "$DIST" = "Ubuntu" -o "$DIST" = "Debian" ]; then
$install gcc ${PYPKG}-pip ${PYPKG}-dev libffi-dev libssl-dev \
$install gcc python-pip python-dev libffi-dev libssl-dev \
libxml2-dev libxslt1-dev zlib1g-dev
fi
@@ -529,17 +497,17 @@ function nox {
echo "Installing NOX w/tutorial files..."
# Install NOX deps:
$install autoconf automake g++ libtool python ${PYPKG}-twisted \
$install autoconf automake g++ libtool python python-twisted \
swig libssl-dev make
if [ "$DIST" = "Debian" ]; then
$install libboost1.35-dev
elif [ "$DIST" = "Ubuntu" ]; then
$install ${PYPKG}-dev libboost-dev
$install python-dev libboost-dev
$install libboost-filesystem-dev
$install libboost-test-dev
fi
# Install NOX optional deps:
$install libsqlite3-dev ${PYPKG}-simplejson
$install libsqlite3-dev python-simplejson
# Fetch NOX destiny
cd $BUILD_DIR/
@@ -577,12 +545,12 @@ function nox13 {
echo "Installing NOX w/tutorial files..."
# Install NOX deps:
$install autoconf automake g++ libtool python ${PYPKG}-twisted \
$install autoconf automake g++ libtool python python-twisted \
swig libssl-dev make
if [ "$DIST" = "Debian" ]; then
$install libboost1.35-dev
elif [ "$DIST" = "Ubuntu" ]; then
$install ${PYPKG}-dev libboost-dev
$install python-dev libboost-dev
$install libboost-filesystem-dev
$install libboost-test-dev
fi
@@ -618,8 +586,7 @@ function oftest {
echo "Installing oftest..."
# Install deps:
$install tcpdump
$install ${PYPKG}-scapy || sudo $PYTHON -m pip install scapy
$install tcpdump python-scapy
# Install oftest:
cd $BUILD_DIR/
@@ -645,7 +612,6 @@ function cbench {
sh boot.sh || true # possible error in autoreconf, so run twice
sh boot.sh
./configure --with-openflow-src-dir=$BUILD_DIR/openflow
make liboflops_test.la
make
sudo make install || true # make install fails; force past this
}
@@ -677,10 +643,9 @@ net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1' | sudo tee -a /etc/sysctl.conf > /dev/null
fi
# Since the above doesn't disable neighbor discovery, also do this:
# disable via boot line, and also restore eth0 naming for VM use
if ! grep 'ipv6.disable' /etc/default/grub; then
sudo sed -i -e \
's/GRUB_CMDLINE_LINUX_DEFAULT="/GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1 net.ifnames=0 /' \
's/GRUB_CMDLINE_LINUX_DEFAULT="/GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1 /' \
/etc/default/grub
sudo update-grub
fi
@@ -758,8 +723,8 @@ function all {
echo "Installing all packages except for -eix (doxypy, ivs, nox-classic)..."
kernel
mn_deps
# Skip mn_doc (doxypy/texlive/fonts/etc.) because it's huge
# mn_doc
# Skip mn_dev (doxypy/texlive/fonts/etc.) because it's huge
# mn_dev
of
install_wireshark
ovs
@@ -790,12 +755,8 @@ function vm_clean {
# Remove SSH keys and regenerate on boot
echo 'Removing SSH keys from /etc/ssh/'
sudo rm -f /etc/ssh/*key*
if [ ! -e /etc/rc.local ]; then
echo '#!/usr/bin/bash' | sudo tee /etc/rc.local
sudo chmod +x /etc/rc.local
fi
if ! grep mininet /etc/rc.local >& /dev/null; then
sudo sed -i -e "s/exit 0//" /etc/rc.local || true
sudo sed -i -e "s/exit 0//" /etc/rc.local
echo '
# mininet: regenerate ssh keys if we deleted them
if ! stat -t /etc/ssh/*key* >/dev/null 2>&1; then
@@ -803,15 +764,15 @@ if ! stat -t /etc/ssh/*key* >/dev/null 2>&1; then
fi
exit 0
' | sudo tee -a /etc/rc.local > /dev/null
sudo chmod +x /etc/rc.local
fi
# Remove Mininet files
#sudo rm -f /lib/modules/python2.5/site-packages/mininet*
#sudo rm -f /usr/bin/mnexec
# Clear optional dev script for SSH keychain load on boot
rm -f ~/.bash_profile
# Remove leftover install script if any
rm -f install-mininet-vm.sh
# Clear git changes
git config --global user.name "None"
git config --global user.email "None"
@@ -838,7 +799,7 @@ function usage {
printf -- ' -b: install controller (B)enchmark (oflops)\n' >&2
printf -- ' -c: (C)lean up after kernel install\n' >&2
printf -- ' -d: (D)elete some sensitive files from a VM image\n' >&2
printf -- ' -e: install Mininet documentation/LaT(e)X dependencies\n' >&2
printf -- ' -e: install Mininet d(E)veloper dependencies\n' >&2
printf -- ' -f: install Open(F)low\n' >&2
printf -- ' -h: print this (H)elp message\n' >&2
printf -- ' -i: install (I)ndigo Virtual Switch\n' >&2
@@ -872,7 +833,7 @@ else
b) cbench;;
c) kernel_clean;;
d) vm_clean;;
e) mn_doc;;
e) mn_dev;;
f) case $OF_VERSION in
1.0) of;;
1.3) of13;;
+50 -101
View File
@@ -1,4 +1,4 @@
#!/usr/bin/python2.7
#!/usr/bin/python
"""
build.py: build a Mininet VM
@@ -31,7 +31,6 @@ from os import stat, path
from stat import ST_MODE, ST_SIZE
from os.path import abspath
from sys import exit, stdout, argv, modules
import sys
import re
from glob import glob
from subprocess import check_output, call, Popen
@@ -40,13 +39,11 @@ from time import time, strftime, localtime
import argparse
from distutils.spawn import find_executable
import inspect
from traceback import print_exc
pexpect = None # For code check - imported dynamically
# boot can be slooooow!!!! need to debug/optimize somehow
TIMEOUT = 600
TIMEOUT=600
# Some configuration options
# Possibly change this to use the parsed arguments instead!
@@ -63,23 +60,10 @@ VMImageDir = os.environ[ 'HOME' ] + '/vm-images'
Prompt = '\$ ' # Shell prompt that pexpect will wait for
# URLs for Ubunto .iso images
def serverURL( version, arch ):
"Return .iso URL for Ubuntu version and arch"
server = 'http://cdimage.ubuntu.com/ubuntu/releases/%s/release/'
iso = 'ubuntu-%s-server-%s.iso'
return (server + iso ) % ( version, version, arch )
def legacyURL( version, arch ):
"Return .iso URL for Ubuntu version"
server = ( 'http://cdimage.ubuntu.com/ubuntu-legacy-server/'
'releases/%s/release/' )
iso = 'ubuntu-%s-legacy-server-%s.iso'
return (server + iso ) % ( version, version, arch )
isoURLs = {
'precise32server':
'http://mirrors.kernel.org/ubuntu-releases/12.04/'
'ubuntu-12.04.5-server-i386.iso',
'precise64server':
'http://mirrors.kernel.org/ubuntu-releases/12.04/'
'ubuntu-12.04.5-server-amd64.iso',
@@ -89,14 +73,18 @@ isoURLs = {
'trusty64server':
'http://mirrors.kernel.org/ubuntu-releases/14.04/'
'ubuntu-14.04.4-server-amd64.iso',
'wily32server':
'http://mirrors.kernel.org/ubuntu-releases/15.10/'
'ubuntu-15.10-server-i386.iso',
'wily64server':
'http://mirrors.kernel.org/ubuntu-releases/15.10/'
'ubuntu-15.10-server-amd64.iso',
'xenial32server':
'http://mirrors.kernel.org/ubuntu-releases/16.04/'
'ubuntu-16.04.6-server-i386.iso',
'ubuntu-16.04.1-server-i386.iso',
'xenial64server':
'http://mirrors.kernel.org/ubuntu-releases/16.04/'
'ubuntu-16.04.7-server-amd64.iso',
'bionic64server': serverURL( '18.04.5', 'amd64' ),
'focal64server': legacyURL( '20.04.1', 'amd64' ),
'ubuntu-16.04.1-server-amd64.iso',
}
@@ -134,7 +122,7 @@ def log( *args, **kwargs ):
else:
print( output, )
# Optionally mirror to LogFile
if LogFile:
if type( LogFile ) is file:
if cr:
output += '\n'
LogFile.write( output )
@@ -143,7 +131,7 @@ def log( *args, **kwargs ):
def run( cmd, **kwargs ):
"Convenient interface to check_output"
log( '+', cmd )
log( '-', cmd )
cmd = cmd.split()
arg0 = cmd[ 0 ]
if not find_executable( arg0 ):
@@ -165,7 +153,7 @@ def depend():
log( '* Installing package dependencies' )
run( 'sudo apt-get -qy update' )
run( 'sudo apt-get -qy install'
' kvmtool cloud-utils genisoimage qemu-kvm qemu-utils'
' kvm cloud-utils genisoimage qemu-kvm qemu-utils'
' e2fsprogs curl'
' python-setuptools mtools zip' )
run( 'sudo easy_install pexpect' )
@@ -191,9 +179,9 @@ def findiso( flavor ):
url = isoURLs[ flavor ]
name = path.basename( url )
iso = path.join( VMImageDir, name )
if not path.exists( iso ) or ( stat( iso )[ ST_MODE ] & 0o777 != 0o444 ):
if not path.exists( iso ) or ( stat( iso )[ ST_MODE ] & 0777 != 0444 ):
log( '* Retrieving', url )
run( 'curl -L -C - -o %s %s' % ( iso, url ) )
run( 'curl -C - -o %s %s' % ( iso, url ) )
# Make sure the file header/type is something reasonable like
# 'ISO' or 'x86 boot sector', and not random html or text
result = run( 'file ' + iso )
@@ -202,7 +190,7 @@ def findiso( flavor ):
raise Exception( 'findiso: could not download iso from ' + url )
# Write-protect iso, signaling it is complete
log( '* Write-protecting iso', iso)
os.chmod( iso, 0o444 )
os.chmod( iso, 0444 )
log( '* Using iso', iso )
return iso
@@ -213,11 +201,10 @@ def attachNBD( cow, flags='' ):
# qemu-nbd requires an absolute path
cow = abspath( cow )
log( '* Checking for unused /dev/nbdX device ' )
for i in range ( 1, 63 ):
entry = 'nbd%d' % i
nbd = '/dev/' + entry
for i in range ( 0, 63 ):
nbd = '/dev/nbd%d' % i
# Check whether someone's already messing with that device
if call( [ 'pgrep', '-f', entry ] ) == 0:
if call( [ 'pgrep', '-f', nbd ] ) == 0:
continue
srun( 'modprobe nbd max-part=64' )
srun( 'qemu-nbd %s -c %s %s' % ( flags, nbd, cow ) )
@@ -235,26 +222,17 @@ def extractKernel( image, flavor, imageDir=VMImageDir ):
"Extract kernel and initrd from base image"
kernel = path.join( imageDir, flavor + '-vmlinuz' )
initrd = path.join( imageDir, flavor + '-initrd' )
if path.exists( kernel ) and ( stat( image )[ ST_MODE ] & 0777 ) == 0444:
# If kernel is there, then initrd should also be there
return kernel, initrd
log( '* Extracting kernel to', kernel )
nbd = attachNBD( image, flags='-r' )
try:
print( srun( 'partx ' + nbd ) )
except:
log( 'Warning - partx failed with error' )
# Guess that kernel is in partition 1/boot/vmlinuz*generic
# ...but look for other Linux partitions just in case
# Assume kernel is in partition 1/boot/vmlinuz*generic for now
part = nbd + 'p1'
partitions = srun( 'fdisk -l ' + nbd )
for line in partitions.split( '\n' ):
line = line.strip()
if line.endswith( 'Linux' ):
part = line.split()[ 0 ]
break
partnum = int( part.split( 'p' )[ -1 ] )
if path.exists( kernel ) and ( stat( image )[ ST_MODE ] & 0o777 ) == 0o444:
# If kernel is there, then initrd should also be there
detachNBD( nbd )
return kernel, initrd, partnum
mnt = mkdtemp()
srun( 'mount -o ro,noload %s %s' % ( part, mnt ) )
kernsrc = glob( '%s/boot/vmlinuz*generic' % mnt )[ 0 ]
@@ -266,7 +244,7 @@ def extractKernel( image, flavor, imageDir=VMImageDir ):
srun( 'umount ' + mnt )
run( 'rmdir ' + mnt )
detachNBD( nbd )
return kernel, initrd, partnum
return kernel, initrd
def findBaseImage( flavor, size='8G' ):
@@ -274,8 +252,8 @@ def findBaseImage( flavor, size='8G' ):
image = path.join( VMImageDir, flavor + '-base.qcow2' )
if path.exists( image ):
# Detect race condition with multiple builds
perms = stat( image )[ ST_MODE ] & 0o777
if perms != 0o444:
perms = stat( image )[ ST_MODE ] & 0777
if perms != 0444:
raise Exception( 'Error - base image %s is writable.' % image +
' Are multiple builds running? if not,'
' remove %s and try again.' % image )
@@ -288,11 +266,10 @@ def findBaseImage( flavor, size='8G' ):
installUbuntu( iso, image )
# Write-protect image, also signaling it is complete
log( '* Write-protecting image', image)
os.chmod( image, 0o444 )
kernel, initrd, partnum = extractKernel( image, flavor )
log( '* Using base image', image, 'and kernel', kernel,
'and partition #', partnum )
return image, kernel, initrd, partnum
os.chmod( image, 0444 )
kernel, initrd = extractKernel( image, flavor )
log( '* Using base image', image, 'and kernel', kernel )
return image, kernel, initrd
# Kickstart and Preseed files for Ubuntu/Debian installer
@@ -405,20 +382,8 @@ def installUbuntu( iso, image, logfilename='install.log', memory=1024 ):
# Mount iso so we can use its kernel
mnt = mkdtemp()
srun( 'mount %s %s' % ( iso, mnt ) )
for kdir in 'install', 'casper':
kernel = path.join( mnt, kdir, 'vmlinuz' )
if not path.exists( kernel ):
kernel = ''
for initrd in 'initrd.gz', 'initrd':
initrd = path.join( mnt, kdir, initrd )
if path.exists( initrd ):
break
else:
initrd = ''
if kernel and initrd:
break
if not kernel or not initrd:
raise Exception( 'unable to locate kernel and initrd in iso image' )
kernel = path.join( mnt, 'install/vmlinuz' )
initrd = path.join( mnt, 'install/initrd.gz' )
if NoKVM:
accel = 'tcg'
else:
@@ -442,7 +407,6 @@ def installUbuntu( iso, image, logfilename='install.log', memory=1024 ):
'-append',
' ks=floppy:/' + kickstart +
' preseed/file=floppy://' + preseed +
' net.ifnames=0' +
' console=ttyS0' ]
ubuntuStart = time()
log( '* INSTALLING UBUNTU FROM', iso, 'ONTO', image )
@@ -459,8 +423,6 @@ def installUbuntu( iso, image, logfilename='install.log', memory=1024 ):
logfile.close()
elapsed = time() - ubuntuStart
# Unmount iso and clean up
### DEBUGGING
srun( 'ls -l ' + mnt )
srun( 'umount ' + mnt )
run( 'rmdir ' + mnt )
if vm.returncode != 0:
@@ -470,7 +432,7 @@ def installUbuntu( iso, image, logfilename='install.log', memory=1024 ):
log( '* Ubuntu installation completed in %.2f seconds' % elapsed )
def boot( cow, kernel, initrd, logfile, memory=1024, cpuCores=1, partnum=1 ):
def boot( cow, kernel, initrd, logfile, memory=1024, cpuCores=1 ):
"""Boot qemu/kvm with a COW disk and local/user data store
cow: COW disk path
kernel: kernel path
@@ -502,9 +464,7 @@ def boot( cow, kernel, initrd, logfile, memory=1024, cpuCores=1, partnum=1 ):
'-kernel', kernel,
'-initrd', initrd,
'-drive file=%s,if=virtio' % cow,
'-append "root=/dev/vda%d init=/sbin/init'
' net.ifnames=0 console=ttyS0" ' % partnum ]
log( cmd )
'-append "root=/dev/vda1 init=/sbin/init console=ttyS0" ' ]
if Forward:
cmd += sum( [ [ '-redir', f ] for f in Forward ], [] )
if cpuCores > 1:
@@ -630,16 +590,13 @@ def checkOutBranch( vm, branch, prompt=Prompt ):
# The branch will be rebased to its parent on origin.
# This probably doesn't matter since we're running on a COW disk
# anyway.
vm.sendline( 'cd ~/mininet; git fetch origin ' + branch +
'; git checkout ' + branch +
'; git pull --rebase origin ' + branch )
vm.sendline( 'cd ~/mininet; git fetch --all; git checkout '
+ branch + '; git pull --rebase origin ' + branch )
vm.expect( prompt )
# Use install.sh since we may need to identify python version?
vm.sendline( 'util/install.sh -n' )
vm.sendline( 'sudo -n make install' )
def interact( vm, tests, pre='', post='', prompt=Prompt,
clean=True):
def interact( vm, tests, pre='', post='', prompt=Prompt ):
"Interact with vm, which is a pexpect object"
login( vm )
log( '* Waiting for login...' )
@@ -662,11 +619,8 @@ def interact( vm, tests, pre='', post='', prompt=Prompt,
vm.expect ( 'password for mininet: ' )
vm.sendline( 'mininet' )
log( '* Waiting for script to complete... ' )
# Long timeout since we may be on cloud CI
# 30min for kvm, 1.5hr for emulation
# TODO: detect installation errors
timeout = 5200 if NoKVM else 1800
vm.expect( 'Done preparing Mininet', timeout=timeout )
# Gigantic timeout for now ;-(
vm.expect( 'Done preparing Mininet', timeout=3600 )
log( '* Completed successfully' )
vm.expect( prompt )
version = getMininetVersion( vm )
@@ -681,10 +635,6 @@ def interact( vm, tests, pre='', post='', prompt=Prompt,
vm.sendline( "sudo sed -i -e 's/^GRUB_TERMINAL=serial/#GRUB_TERMINAL=serial/' "
"/etc/default/grub; sudo update-grub" )
vm.expect( prompt )
if clean:
log( '* Cleaning vm' )
vm.sendline( '~/mininet/util/install.sh -d' )
vm.expect( prompt )
log( '* Shutting down' )
vm.sendline( 'sync; sudo shutdown -h now' )
log( '* Waiting for EOF/shutdown' )
@@ -849,7 +799,7 @@ def build( flavor='raring32server', tests=None, pre='', post='', memory=1024 ):
ovfdate = strftime( '%y%m%d', lstart )
dir = 'mn-%s-%s' % ( flavor, date )
if Branch:
dir = 'mn-%s-%s-%s' % ( Branch, flavor, date )
dirname = 'mn-%s-%s-%s' % ( Branch, flavor, date )
try:
os.mkdir( dir)
except:
@@ -860,7 +810,7 @@ def build( flavor='raring32server', tests=None, pre='', post='', memory=1024 ):
LogFile = open( 'build.log', 'w' )
log( '* Logging to', abspath( LogFile.name ) )
log( '* Created working directory', dir )
image, kernel, initrd, partnum = findBaseImage( flavor )
image, kernel, initrd = findBaseImage( flavor )
basename = 'mininet-' + flavor
volume = basename + '.qcow2'
run( 'qemu-img create -f qcow2 -b %s %s' % ( image, volume ) )
@@ -870,7 +820,7 @@ def build( flavor='raring32server', tests=None, pre='', post='', memory=1024 ):
else:
logfile = open( flavor + '.log', 'w+' )
log( '* Logging results to', abspath( logfile.name ) )
vm = boot( volume, kernel, initrd, logfile, memory=memory, partnum=partnum )
vm = boot( volume, kernel, initrd, logfile, memory=memory )
version = interact( vm, tests=tests, pre=pre, post=post )
size = qcow2size( volume )
arch = archFor( flavor )
@@ -929,7 +879,7 @@ def runTests( vm, tests=None, pre='', post='', prompt=Prompt, uninstallNtpd=Fals
def getMininetVersion( vm ):
"Run mn to find Mininet version in VM"
vm.sendline( '(cd ~/mininet; PYTHONPATH=. bin/mn --version)' )
vm.sendline( '~/mininet/bin/mn --version' )
# Eat command line echo, then read output line
vm.readline()
version = vm.readline().strip()
@@ -954,7 +904,7 @@ def bootAndRun( image, prompt=Prompt, memory=1024, cpuCores=1, outputFile=None,
log( '* Creating COW disk', cow )
run( 'qemu-img create -f qcow2 -b %s %s' % ( image, cow ) )
log( '* Extracting kernel and initrd' )
kernel, initrd, part = extractKernel( image, flavor=basename, imageDir=tmpdir )
kernel, initrd = extractKernel( image, flavor=basename, imageDir=tmpdir )
if LogToConsole:
logfile = stdout
else:
@@ -962,7 +912,7 @@ def bootAndRun( image, prompt=Prompt, memory=1024, cpuCores=1, outputFile=None,
suffix='.testlog', delete=False )
log( '* Logging VM output to', logfile.name )
vm = boot( cow=cow, kernel=kernel, initrd=initrd, logfile=logfile,
memory=memory, cpuCores=cpuCores, part=part )
memory=memory, cpuCores=cpuCores )
login( vm )
log( '* Waiting for prompt after login' )
vm.expect( prompt )
@@ -1001,7 +951,7 @@ def testDict():
def testString():
"Return string listing valid tests"
tests = [ '%s <%s>' % ( name, func.__doc__ )
for name, func in testDict().items() ]
for name, func in testDict().iteritems() ]
return 'valid tests: %s' % ', '.join( tests )
@@ -1081,7 +1031,6 @@ def parseArgs():
memory=args.memory )
except Exception as e:
log( '* BUILD FAILED with exception: ', e )
print_exc( e )
exit( 1 )
for image in args.image:
bootAndRun( image, runFunction=runTests, tests=args.test, pre=args.run,
+15 -13
View File
@@ -15,7 +15,13 @@ sudo sed -i -e 's/splash//' /etc/default/grub
sudo sed -i -e 's/quiet/text/' /etc/default/grub
sudo update-grub
# Update from official archive
sudo apt-get -qq update
sudo apt-get update
# 12.10 and earlier
#sudo sed -i -e 's/us.archive.ubuntu.com/mirrors.kernel.org/' \
# /etc/apt/sources.list
# 13.04 and later
#sudo sed -i -e 's/\/archive.ubuntu.com/\/mirrors.kernel.org/' \
# /etc/apt/sources.list
# Clean up vmware easy install junk if present
if [ -e /etc/issue.backup ]; then
sudo mv /etc/issue.backup /etc/issue
@@ -24,22 +30,18 @@ if [ -e /etc/rc.local.backup ]; then
sudo mv /etc/rc.local.backup /etc/rc.local
fi
# Fetch Mininet
sudo apt-get -y -qq install git-core openssh-server
sudo apt-get -y install git-core openssh-server
git clone git://github.com/mininet/mininet
# Optionally check out branch
if [ "$1" != "" ]; then
pushd mininet
git fetch origin $1
git checkout $1
popd
pushd mininet
#git checkout -b $1 $1
# TODO branch will in detached HEAD state if it is not master
git checkout $1
popd
fi
# Install Mininet for Python2 and Python3
APT="sudo apt-get -y -qq"
$APT install python3
$APT install python2 || $APT install python
python --version || $APT install python-is-python3
time PYTHON=python2 mininet/util/install.sh -n
time PYTHON=python3 mininet/util/install.sh
# Install Mininet
time mininet/util/install.sh
# Finalize VM
time mininet/util/install.sh -tcd
# Ignoring this since NOX classic is deprecated