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frr/tests/topotests/bgp_srv6l3vpn_sid/test_bgp_srv6l3vpn_sid.py

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#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# Copyright 2023 6WIND S.A.
# Authored by Dmytro Shytyi <dmytro.shytyi@6wind.com>
#
# 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.
#
import os
import re
import sys
import json
import functools
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 import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
from lib.common_config import required_linux_kernel_version
from lib.checkping import check_ping
def build_topo(tgen):
r"""
CE1 CE3 CE5
(eth0) (eth0) (eth0)
:2 :2 :2
| | |
192.168.1.0 | |
/24 | |
2001: 2001: 2001:
1::/64 3::/64 5::/64
| | |
:1 :1 :1
+-(eth1)--(eth2)---(eth3)-+
| \ / | |
| (vrf10) (vrf20) |
| R1 |
+----------(eth0)---------+
:1
|
2001::/64
|
:2
(eth0)
+----------(eth0)--------------+
| R2 |
| (vrf10) (vrf20) |
| / / \ |
+-(eth1)-----(eth2)-----(eth3)-+
:1 :1 :1
| | |
+------+ +------+ +------+
/ 2001: \ / 2001: \ / 2001: \
/ 2::/64 \ 4::/64 / \ 6::/64 /
/192.168.2.0| / \ /
\ /24 / \ | | |
+------+ +------+ +------+
| | |
:2 :2 :2
(eth0) (eth0) (eth0)
CE2 CE4 CE6
"""
tgen.add_router("r1")
tgen.add_router("r2")
tgen.add_router("ce1")
tgen.add_router("ce2")
tgen.add_router("ce3")
tgen.add_router("ce4")
tgen.add_router("ce5")
tgen.add_router("ce6")
tgen.add_link(tgen.gears["r1"], tgen.gears["r2"], "eth0", "eth0")
tgen.add_link(tgen.gears["ce1"], tgen.gears["r1"], "eth0", "eth1")
tgen.add_link(tgen.gears["ce2"], tgen.gears["r2"], "eth0", "eth1")
tgen.add_link(tgen.gears["ce3"], tgen.gears["r1"], "eth0", "eth2")
tgen.add_link(tgen.gears["ce4"], tgen.gears["r2"], "eth0", "eth2")
tgen.add_link(tgen.gears["ce5"], tgen.gears["r1"], "eth0", "eth3")
tgen.add_link(tgen.gears["ce6"], tgen.gears["r2"], "eth0", "eth3")
def setup_module(mod):
result = required_linux_kernel_version("5.11")
if result is not True:
pytest.skip("Kernel requirements are not met")
tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for i, (rname, router) in enumerate(tgen.routers().items(), 1):
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
router.load_config(
TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
)
tgen.gears["r1"].run("modprobe vrf")
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 eth1 master vrf10")
tgen.gears["r1"].run("ip link set eth2 master vrf10")
tgen.gears["r1"].run("ip link set eth3 master vrf20")
tgen.gears["r1"].run("sysctl net.vrf.strict_mode=1")
tgen.gears["r1"].run("sysctl net.ipv4.conf.default.rp_filter=0")
tgen.gears["r1"].run("sysctl net.ipv4.conf.all.rp_filter=0")
tgen.gears["r1"].run("sysctl net.ipv4.conf.lo.rp_filter=0")
tgen.gears["r1"].run("sysctl net.ipv4.conf.eth0.rp_filter=0")
tgen.gears["r1"].run("sysctl net.ipv4.conf.eth1.rp_filter=0")
tgen.gears["r1"].run("sysctl net.ipv4.conf.vrf10.rp_filter=0")
tgen.gears["r2"].run("modprobe vrf")
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["r2"].run("ip link set eth3 master vrf20")
tgen.gears["r2"].run("sysctl net.vrf.strict_mode=1")
tgen.gears["r2"].run("sysctl net.ipv4.conf.default.rp_filter=0")
tgen.gears["r2"].run("sysctl net.ipv4.conf.all.rp_filter=0")
tgen.gears["r2"].run("sysctl net.ipv4.conf.lo.rp_filter=0")
tgen.gears["r2"].run("sysctl net.ipv4.conf.eth0.rp_filter=0")
tgen.gears["r2"].run("sysctl net.ipv4.conf.eth1.rp_filter=0")
tgen.gears["r2"].run("sysctl net.ipv4.conf.vrf10.rp_filter=0")
tgen.start_router()
# FOR DEVELOPER:
# If you want to stop some specific line and start interactive shell,
# please use tgen.mininet_cli() to start it.
# Example:
# tgen=get_topogen()
# tgen.mininet_cli()
def teardown_module(mod):
tgen = get_topogen()
tgen.stop_topology()
def open_json_file(filename):
try:
with open(filename, "r") as f:
return json.load(f)
except IOError:
assert False, "Could not read file {}".format(filename)
def check_rib(name, cmd, expected_file):
def _check(name, cmd, expected_file):
logger.info("polling")
tgen = get_topogen()
router = tgen.gears[name]
output = json.loads(router.vtysh_cmd(cmd))
expected = open_json_file("{}/{}".format(CWD, expected_file))
return topotest.json_cmp(output, expected)
logger.info('[+] check {} "{}" {}'.format(name, cmd, expected_file))
tgen = get_topogen()
func = functools.partial(_check, name, cmd, expected_file)
success, result = topotest.run_and_expect(func, None, count=10, wait=0.5)
assert result is None, "Failed"
def test_rib():
check_rib("r1", "show bgp ipv6 vpn json", "r1/vpnv6_rib.json")
check_rib("r2", "show bgp ipv6 vpn json", "r2/vpnv6_rib.json")
check_rib("r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_rib.json")
check_rib("r1", "show ipv6 route vrf vrf20 json", "r1/vrf20_rib.json")
check_rib("r2", "show ipv6 route vrf vrf10 json", "r2/vrf10_rib.json")
check_rib("r2", "show ipv6 route vrf vrf20 json", "r2/vrf20_rib.json")
check_rib("ce1", "show ipv6 route json", "ce1/ipv6_rib.json")
check_rib("ce2", "show ipv6 route json", "ce2/ipv6_rib.json")
check_rib("ce3", "show ipv6 route json", "ce3/ipv6_rib.json")
check_rib("ce4", "show ipv6 route json", "ce4/ipv6_rib.json")
check_rib("ce5", "show ipv6 route json", "ce5/ipv6_rib.json")
check_rib("ce6", "show ipv6 route json", "ce6/ipv6_rib.json")
def test_ping():
check_ping("ce1", "2001:2::2", True, 10, 0.5)
check_ping("ce1", "2001:3::2", True, 10, 0.5)
check_ping("ce1", "2001:4::2", False, 10, 0.5)
check_ping("ce1", "2001:5::2", False, 10, 0.5)
check_ping("ce1", "2001:6::2", False, 10, 0.5)
check_ping("ce4", "2001:1::2", False, 10, 0.5)
check_ping("ce4", "2001:2::2", False, 10, 0.5)
check_ping("ce4", "2001:3::2", False, 10, 0.5)
check_ping("ce4", "2001:5::2", True, 10, 0.5)
check_ping("ce4", "2001:6::2", True, 10, 0.5)
def test_sid_per_afv6_auto():
check_rib("r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_auto_sid_rib.json")
check_ping("ce1", "2001:2::2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv6 unicast
no sid vpn export auto
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_auto_no_sid_rib.json"
)
check_ping("ce1", "2001:2::2", False, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv6 unicast
sid vpn export auto
"""
)
check_rib("r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_auto_sid_rib.json")
check_ping("ce1", "2001:2::2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv6 unicast
no sid vpn export auto
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_auto_no_sid_rib.json"
)
check_ping("ce1", "2001:2::2", False, 10, 0.5)
def test_sid_per_afv6_manual():
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_manual_no_sid_rib.json"
)
check_ping("ce1", "2001:2::2", False, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv6 unicast
sid vpn export 8
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_manual_sid_rib.json"
)
check_ping("ce1", "2001:2::2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv6 unicast
no sid vpn export 8
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_afv6_manual_no_sid_rib.json"
)
check_ping("ce1", "2001:2::2", False, 10, 0.5)
def test_sid_per_afv4_auto():
check_rib("r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_auto_sid_rib.json")
check_ping("ce1", "192.168.2.2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv4 unicast
no sid vpn export auto
"""
)
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_auto_no_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", False, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv4 unicast
sid vpn export auto
"""
)
check_rib("r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_auto_sid_rib.json")
check_ping("ce1", "192.168.2.2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv4 unicast
no sid vpn export auto
"""
)
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_auto_no_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", False, 10, 0.5)
def test_sid_per_afv4_manual():
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_manual_no_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", False, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv4 unicast
sid vpn export 8
"""
)
check_rib("r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_manual_sid_rib.json")
check_ping("ce1", "192.168.2.2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
address-family ipv4 unicast
no sid vpn export 8
"""
)
check_ping("ce1", "192.168.2.2", False, 10, 0.5)
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_afv4_manual_no_sid_rib.json"
)
def test_sid_per_vrf_auto():
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_pervrf_auto_no_sid_rib.json"
)
check_ping("ce1", "2001:2::2", False, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
sid vpn per-vrf export auto
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_pervrf6_auto_sid_rib.json"
)
check_ping("ce1", "2001:2::2", True, 10, 0.5)
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_pervrf4_auto_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
no sid vpn per-vrf export auto
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_pervrf_auto_no_sid_rib.json"
)
check_ping("ce1", "2001:2::2", False, 10, 0.5)
def test_sid_per_vrf_manual():
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_pervrf_manual_no_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", False, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
sid vpn per-vrf export 8
"""
)
check_rib(
"r1", "show ipv6 route vrf vrf10 json", "r1/vrf10_pervrf6_manual_sid_rib.json"
)
check_ping("ce1", "2001:2::2", True, 10, 0.5)
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_pervrf4_manual_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", True, 10, 0.5)
get_topogen().gears["r2"].vtysh_cmd(
"""
configure terminal
router bgp 2 vrf vrf10
no sid vpn per-vrf export 8
"""
)
check_rib(
"r1", "show ip route vrf vrf10 json", "r1/vrf10_pervrf_manual_no_sid_rib.json"
)
check_ping("ce1", "192.168.2.2", False, 10, 0.5)
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))