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#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# Part of NetDEF Topology Tests
#
# Copyright (c) 2023 by 6WIND
#
import os
import sys
import pytest
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
# pylint: disable=C0413
# Import topogen and topotest helpers
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.common_config import required_linux_kernel_version
from lib.checkping import check_ping
pytestmark = [pytest.mark.bgpd, pytest.mark.staticd]
def build_topo(tgen):
tgen.add_router("r1")
tgen.add_router("r2")
tgen.add_router("r3")
tgen.add_router("c11")
tgen.add_router("c12")
tgen.add_router("c21")
tgen.add_router("c22")
tgen.add_router("c31")
tgen.add_router("c32")
tgen.add_link(tgen.gears["r1"], tgen.gears["r2"], "eth0", "eth0")
tgen.add_link(tgen.gears["r1"], tgen.gears["r3"], "eth1", "eth0")
tgen.add_link(tgen.gears["r1"], tgen.gears["c11"], "eth2", "eth0")
tgen.add_link(tgen.gears["r1"], tgen.gears["c12"], "eth3", "eth0")
tgen.add_link(tgen.gears["r2"], tgen.gears["c21"], "eth1", "eth0")
tgen.add_link(tgen.gears["r2"], tgen.gears["c22"], "eth2", "eth0")
tgen.add_link(tgen.gears["r3"], tgen.gears["c31"], "eth1", "eth0")
tgen.add_link(tgen.gears["r3"], tgen.gears["c32"], "eth2", "eth0")
def setup_module(mod):
result = required_linux_kernel_version("5.15")
if result is not True:
pytest.skip("Kernel requirements are not met")
tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
for rname, router in tgen.routers().items():
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
router.load_config(
TopoRouter.RD_STATIC, os.path.join(CWD, "{}/staticd.conf".format(rname))
)
router.load_config(
TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
)
tgen.gears["r1"].run("sysctl net.vrf.strict_mode=1")
tgen.gears["r1"].run("ip link add vrf10 type vrf table 10")
tgen.gears["r1"].run("ip link set vrf10 up")
tgen.gears["r1"].run("ip link add vrf20 type vrf table 20")
tgen.gears["r1"].run("ip link set vrf20 up")
tgen.gears["r1"].run("ip link set eth2 master vrf10")
tgen.gears["r1"].run("ip link set eth3 master vrf20")
tgen.gears["r2"].run("sysctl net.vrf.strict_mode=1")
tgen.gears["r2"].run("ip link add vrf10 type vrf table 10")
tgen.gears["r2"].run("ip link set vrf10 up")
tgen.gears["r2"].run("ip link add vrf20 type vrf table 20")
tgen.gears["r2"].run("ip link set vrf20 up")
tgen.gears["r2"].run("ip link set eth1 master vrf10")
tgen.gears["r2"].run("ip link set eth2 master vrf20")
tgen.gears["r3"].run("sysctl net.vrf.strict_mode=1")
tgen.gears["r3"].run("ip link add vrf10 type vrf table 10")
tgen.gears["r3"].run("ip link set vrf10 up")
tgen.gears["r3"].run("ip link add vrf20 type vrf table 20")
tgen.gears["r3"].run("ip link set vrf20 up")
tgen.gears["r3"].run("ip link set eth1 master vrf10")
tgen.gears["r3"].run("ip link set eth2 master vrf20")
tgen.start_router()
def teardown_module(mod):
tgen = get_topogen()
tgen.stop_topology()
def test_ping():
tgen = get_topogen()
check_ping("c11", "192.168.2.1", True, 120, 1)
check_ping("c11", "192.168.3.1", True, 10, 1)
check_ping("c12", "192.168.2.1", True, 10, 1)
check_ping("c12", "192.168.3.1", True, 10, 1)
check_ping("c21", "192.168.3.1", True, 10, 1)
check_ping("c22", "192.168.3.1", True, 10, 1)
def test_sid_unreachable_nht():
get_topogen().gears["r1"].vtysh_cmd(
"""
configure terminal
no ipv6 route 2001:db8:2:2::/64 2001:db8:12::2
"""
)
check_ping("c11", "192.168.2.1", False, 10, 1)
def test_sid_reachable_again_nht():
get_topogen().gears["r1"].vtysh_cmd(
"""
configure terminal
ipv6 route 2001:db8:2:2::/64 2001:db8:12::2
"""
)
check_ping("c11", "192.168.2.1", True, 10, 1)
def test_sid_unreachable_bgp_update():
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 65002
no segment-routing srv6
exit
router bgp 65002 vrf vrf10
address-family ipv4 unicast
no sid vpn export 1
"""
)
check_ping("c11", "192.168.2.1", False, 10, 1)
def test_sid_reachable_again_bgp_update():
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 65002
segment-routing srv6
locator default
exit
exit
router bgp 65002 vrf vrf10
address-family ipv4 unicast
sid vpn export 1
"""
)
check_ping("c11", "192.168.2.1", True, 10, 1)
def test_sid_unreachable_no_router():
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
no router bgp 65002 vrf vrf10
"""
)
check_ping("c11", "192.168.2.1", False, 10, 1)
def test_sid_reachable_again_no_router():
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 65002 vrf vrf10
bgp router-id 192.0.2.2
!
address-family ipv4 unicast
redistribute connected
sid vpn export 1
rd vpn export 65002:10
rt vpn both 0:10
import vpn
export vpn
exit-address-family
"""
)
check_ping("c11", "192.168.2.1", True, 10, 1)
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
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