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#!/usr/bin/env python
#
# Part of NetDEF Topology Tests
#
# Copyright (c) 2017-2018 by
# Network Device Education Foundation, Inc. ("NetDEF")
# Modified by LabN Consulting, L.L.C.
#
# Permission to use, copy, modify, and/or distribute this software
# for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear
# in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
#
"""
customize.py: Simple FRR/Quagga MPLS L3VPN test topology
+---------+
| r1 |
| 1.1.1.1 | PE Router
+----+----+
| .1 r1-eth0
|
~~~~~~~~~~~~~
~~ sw0 ~~
~~ 10.0.1.0/24 ~~
~~~~~~~~~~~~~
|10.0.1.0/24
|
| .2 r2-eth0
+----+----+
| r2 |
| 2.2.2.2 | P router
+--+---+--+
r2-eth2 .2 | | .2 r2-eth1
______/ \______
/ \
~~~~~~~~~~~~~ ~~~~~~~~~~~~~
~~ sw2 ~~ ~~ sw1 ~~
~~ 10.0.3.0/24 ~~ ~~ 10.0.2.0/24 ~~
~~~~~~~~~~~~~ ~~~~~~~~~~~~~
| / |
\ _________/ |
\ / \
r3-eth1 .3 | | .3 r3-eth0 | .4 r4-eth0
+----+--+---+ +----+----+
| r3 | | r4 |
| 3.3.3.3 | | 4.4.4.4 | PE Routers
+-----------+ +---------+
"""
import os
import re
import pytest
# pylint: disable=C0413
# Import topogen and topotest helpers
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
from lib.ltemplate import ltemplateRtrCmd
# Required to instantiate the topology builder class.
from mininet.topo import Topo
import shutil
CWD = os.path.dirname(os.path.realpath(__file__))
# test name based on directory
TEST = os.path.basename(CWD)
class ThisTestTopo(Topo):
"Test topology builder"
def build(self, *_args, **_opts):
"Build function"
tgen = get_topogen(self)
# This function only purpose is to define allocation and relationship
# between routers, switches and hosts.
#
# Create P/PE routers
tgen.add_router('r1')
for routern in range(2, 5):
tgen.add_router('r{}'.format(routern))
# Create a switch with just one router connected to it to simulate a
# empty network.
switch = {}
switch[0] = tgen.add_switch('sw0')
switch[0].add_link(tgen.gears['r1'], nodeif='r1-eth0')
switch[0].add_link(tgen.gears['r2'], nodeif='r2-eth0')
switch[1] = tgen.add_switch('sw1')
switch[1].add_link(tgen.gears['r2'], nodeif='r2-eth1')
switch[1].add_link(tgen.gears['r3'], nodeif='r3-eth0')
switch[1].add_link(tgen.gears['r4'], nodeif='r4-eth0')
switch[2] = tgen.add_switch('sw2')
switch[2].add_link(tgen.gears['r2'], nodeif='r2-eth2')
switch[2].add_link(tgen.gears['r3'], nodeif='r3-eth1')
def ltemplatePreRouterStartHook():
cc = ltemplateRtrCmd()
tgen = get_topogen()
logger.info('pre router-start hook')
#check for normal init
if len(tgen.net) == 1:
logger.info('Topology not configured, skipping setup')
return False
return True
def ltemplatePostRouterStartHook():
logger.info('post router-start hook')
return True
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