forked from Mirror/frr
255 lines
8.6 KiB
Python
255 lines
8.6 KiB
Python
#!/usr/bin/env python
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#
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# test_bgp_evpn.py
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# Part of NetDEF Topology Tests
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#
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# Copyright (c) 2019 by 6WIND
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#
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# Permission to use, copy, modify, and/or distribute this software
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# for any purpose with or without fee is hereby granted, provided
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# that the above copyright notice and this permission notice appear
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# in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
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# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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# OF THIS SOFTWARE.
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#
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"""
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test_bgp_evpn.py: Test the FRR BGP daemon with BGP IPv6 interface
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with route advertisements on a separate netns.
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"""
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import os
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import sys
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import json
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from functools import partial
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import pytest
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import platform
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(CWD, "../"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.topolog import logger
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# Required to instantiate the topology builder class.
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from mininet.topo import Topo
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l3mdev_accept = 0
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krel = ""
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class BGPEVPNTopo(Topo):
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"Test topology builder"
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def build(self, *_args, **_opts):
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"Build function"
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tgen = get_topogen(self)
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tgen.add_router("r1")
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tgen.add_router("r2")
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switch = tgen.add_switch("s1")
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switch.add_link(tgen.gears["r1"])
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switch.add_link(tgen.gears["r2"])
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switch = tgen.add_switch("s2")
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switch.add_link(tgen.gears["r1"])
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switch = tgen.add_switch("s3")
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switch.add_link(tgen.gears["r2"])
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def setup_module(mod):
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"Sets up the pytest environment"
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global l3mdev_accept
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global krel
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tgen = Topogen(BGPEVPNTopo, mod.__name__)
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tgen.start_topology()
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router_list = tgen.routers()
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krel = platform.release()
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if topotest.version_cmp(krel, "4.18") < 0:
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logger.info(
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'BGP EVPN RT5 NETNS tests will not run (have kernel "{}", but it requires 4.18)'.format(
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krel
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)
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)
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return pytest.skip("Skipping BGP EVPN RT5 NETNS Test. Kernel not supported")
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l3mdev_accept = 1
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logger.info("setting net.ipv4.tcp_l3mdev_accept={}".format(l3mdev_accept))
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# create VRF vrf-101 on R1 and R2
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# create loop101
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cmds_vrflite = [
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"sysctl -w net.ipv4.tcp_l3mdev_accept={}".format(l3mdev_accept),
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"ip link add {}-vrf-101 type vrf table 101",
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"ip ru add oif {}-vrf-101 table 101",
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"ip ru add iif {}-vrf-101 table 101",
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"ip link set dev {}-vrf-101 up",
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"sysctl -w net.ipv4.tcp_l3mdev_accept={}".format(l3mdev_accept),
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"ip link add loop101 type dummy",
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"ip link set dev loop101 master {}-vrf-101",
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"ip link set dev loop101 up",
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]
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cmds_netns = [
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"ip netns add {}-vrf-101",
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"ip link add loop101 type dummy",
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"ip link set dev loop101 netns {}-vrf-101",
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"ip netns exec {}-vrf-101 ip link set dev loop101 up",
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]
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cmds_r2 = [ # config routing 101
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"ip link add name bridge-101 up type bridge stp_state 0",
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"ip link set bridge-101 master {}-vrf-101",
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"ip link set dev bridge-101 up",
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"ip link add name vxlan-101 type vxlan id 101 dstport 4789 dev r2-eth0 local 192.168.100.41",
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"ip link set dev vxlan-101 master bridge-101",
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"ip link set vxlan-101 up type bridge_slave learning off flood off mcast_flood off",
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]
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cmds_r1_netns_method3 = [
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"ip link add name vxlan-{1} type vxlan id {1} dstport 4789 dev {0}-eth0 local 192.168.100.21",
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"ip link set dev vxlan-{1} netns {0}-vrf-{1}",
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"ip netns exec {0}-vrf-{1} ip li set dev lo up",
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"ip netns exec {0}-vrf-{1} ip link add name bridge-{1} up type bridge stp_state 0",
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"ip netns exec {0}-vrf-{1} ip link set dev vxlan-{1} master bridge-{1}",
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"ip netns exec {0}-vrf-{1} ip link set bridge-{1} up",
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"ip netns exec {0}-vrf-{1} ip link set vxlan-{1} up",
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]
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router = tgen.gears["r1"]
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for cmd in cmds_netns:
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logger.info("cmd to r1: " + cmd)
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output = router.run(cmd.format("r1"))
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logger.info("result: " + output)
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router = tgen.gears["r2"]
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for cmd in cmds_vrflite:
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logger.info("cmd to r2: " + cmd.format("r2"))
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output = router.run(cmd.format("r2"))
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logger.info("result: " + output)
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for cmd in cmds_r2:
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logger.info("cmd to r2: " + cmd.format("r2"))
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output = router.run(cmd.format("r2"))
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logger.info("result: " + output)
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router = tgen.gears["r1"]
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bridge_id = "101"
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for cmd in cmds_r1_netns_method3:
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logger.info("cmd to r1: " + cmd.format("r1", bridge_id))
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output = router.run(cmd.format("r1", bridge_id))
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logger.info("result: " + output)
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router = tgen.gears["r1"]
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for rname, router in router_list.items():
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if rname == "r1":
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router.load_config(
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TopoRouter.RD_ZEBRA,
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os.path.join(CWD, "{}/zebra.conf".format(rname)),
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"--vrfwnetns -o vrf0",
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)
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else:
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router.load_config(
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TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
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)
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router.load_config(
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TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
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)
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# Initialize all routers.
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tgen.start_router()
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def teardown_module(_mod):
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"Teardown the pytest environment"
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tgen = get_topogen()
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cmds_rx_netns = ["ip netns del {}-vrf-101"]
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router = tgen.gears["r1"]
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for cmd in cmds_rx_netns:
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logger.info("cmd to r1: " + cmd.format("r1"))
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output = router.run(cmd.format("r1"))
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tgen.stop_topology()
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def test_protocols_convergence():
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"""
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Assert that all protocols have converged
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statuses as they depend on it.
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"""
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tgen = get_topogen()
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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topotest.sleep(4, "waiting 4 seconds for bgp convergence")
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# Check IPv4/IPv6 routing tables.
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output = tgen.gears["r1"].vtysh_cmd("show bgp l2vpn evpn", isjson=False)
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logger.info("==== result from show bgp l2vpn evpn")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd(
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"show bgp l2vpn evpn route detail", isjson=False
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)
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logger.info("==== result from show bgp l2vpn evpn route detail")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd("show bgp vrf r1-vrf-101 ipv4", isjson=False)
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logger.info("==== result from show bgp vrf r1-vrf-101 ipv4")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd("show bgp vrf r1-vrf-101", isjson=False)
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logger.info("==== result from show bgp vrf r1-vrf-101 ")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd("show ip route vrf r1-vrf-101", isjson=False)
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logger.info("==== result from show ip route vrf r1-vrf-101")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd("show evpn vni detail", isjson=False)
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logger.info("==== result from show evpn vni detail")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd("show evpn next-hops vni all", isjson=False)
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logger.info("==== result from show evpn next-hops vni all")
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logger.info(output)
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output = tgen.gears["r1"].vtysh_cmd("show evpn rmac vni all", isjson=False)
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logger.info("==== result from show evpn next-hops vni all")
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logger.info(output)
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# Check IPv4 and IPv6 connectivity between r1 and r2 ( routing vxlan evpn)
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pingrouter = tgen.gears["r1"]
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logger.info(
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"Check Ping IPv4 from R1(r1-vrf-101) to R2(r2-vrf-101 = 192.168.101.41)"
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)
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output = pingrouter.run("ip netns exec r1-vrf-101 ping 192.168.101.41 -f -c 1000")
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logger.info(output)
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if "1000 packets transmitted, 1000 received" not in output:
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assertmsg = (
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"expected ping IPv4 from R1(r1-vrf-101) to R2(192.168.101.41) should be ok"
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)
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assert 0, assertmsg
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else:
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logger.info("Check Ping IPv4 from R1(r1-vrf-101) to R2(192.168.101.41) OK")
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def test_memory_leak():
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"Run the memory leak test and report results."
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tgen = get_topogen()
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if not tgen.is_memleak_enabled():
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pytest.skip("Memory leak test/report is disabled")
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tgen.report_memory_leaks()
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if __name__ == "__main__":
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args = ["-s"] + sys.argv[1:]
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sys.exit(pytest.main(args))
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