--- /dev/null
+#!/usr/bin/env python
+
+#
+# test_bgp_vpnv4_noretain.py
+# Part of NetDEF Topology Tests
+#
+# Copyright 2022 6WIND S.A.
+#
+# 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.
+#
+
+"""
+ test_bgp_vpnv4_noretain.py: Do not keep the VPNvx entries when no
+ VRF matches incoming VPNVx entries
+"""
+
+import os
+import sys
+import json
+from functools import partial
+import pytest
+
+# Save the Current Working Directory to find configuration files.
+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
+
+# Required to instantiate the topology builder class.
+
+
+pytestmark = [pytest.mark.bgpd]
+
+def build_topo(tgen):
+ "Build function"
+
+ tgen.add_router("r1")
+ tgen.add_router("r2")
+
+ switch = tgen.add_switch("s1")
+ switch.add_link(tgen.gears["r1"])
+ switch.add_link(tgen.gears["r2"])
+
+ switch = tgen.add_switch("s2")
+ switch.add_link(tgen.gears["r1"])
+
+ switch = tgen.add_switch("s3")
+ switch.add_link(tgen.gears["r2"])
+
+ switch = tgen.add_switch("s4")
+ switch.add_link(tgen.gears["r2"])
+
+
+def _populate_iface():
+ tgen = get_topogen()
+ cmds_list = [
+ 'modprobe mpls_router',
+ 'echo 100000 > /proc/sys/net/mpls/platform_labels',
+ 'ip link add vrf1 type vrf table 10',
+ 'ip link set dev vrf1 up',
+ 'ip link set dev {0}-eth1 master vrf1',
+ 'echo 1 > /proc/sys/net/mpls/conf/vrf1/input',
+ ]
+ cmds_list_extra = [
+ 'ip link add vrf2 type vrf table 20',
+ 'ip link set dev vrf2 up',
+ 'ip link set dev {0}-eth2 master vrf2',
+ 'echo 1 > /proc/sys/net/mpls/conf/vrf2/input',
+ ]
+
+ for cmd in cmds_list:
+ input = cmd.format('r1', '1', '2')
+ logger.info('input: ' + cmd)
+ output = tgen.net['r1'].cmd(cmd.format('r1', '1', '2'))
+ logger.info('output: ' + output)
+
+ for cmd in cmds_list:
+ input = cmd.format('r2', '2', '1')
+ logger.info('input: ' + cmd)
+ output = tgen.net['r2'].cmd(cmd.format('r2', '2', '1'))
+ logger.info('output: ' + output)
+
+ for cmd in cmds_list_extra:
+ input = cmd.format('r2', '2', '1')
+ logger.info('input: ' + cmd)
+ output = tgen.net['r2'].cmd(cmd.format('r2', '2', '1'))
+ logger.info('output: ' + output)
+
+def setup_module(mod):
+ "Sets up the pytest environment"
+
+ tgen = Topogen(build_topo, mod.__name__)
+ tgen.start_topology()
+
+ router_list = tgen.routers()
+ _populate_iface()
+
+ for rname, router in router_list.items():
+ 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))
+ )
+ router.load_config(
+ TopoRouter.RD_ISIS, os.path.join(CWD, "{}/bgpd.conf".format(rname))
+ )
+
+ # Initialize all routers.
+ tgen.start_router()
+
+
+def teardown_module(_mod):
+ "Teardown the pytest environment"
+ tgen = get_topogen()
+
+ tgen.stop_topology()
+
+
+def test_protocols_convergence():
+ """
+ Assert that all protocols have converged
+ statuses as they depend on it.
+ """
+ tgen = get_topogen()
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ # Check IPv4 VPN routing tables on r1
+ logger.info("Checking IPv4 routes for convergence on r1")
+ router = tgen.gears['r1']
+ json_file = "{}/{}/ipv4_vpn_routes.json".format(CWD, router.name)
+ if not os.path.isfile(json_file):
+ logger.info("skipping file {}".format(json_file))
+ assert 0, 'ipv4_vpn_routes.json file not found'
+ return
+
+ expected = json.loads(open(json_file).read())
+ test_func = partial(
+ topotest.router_json_cmp,
+ router,
+ "show bgp ipv4 vpn json",
+ expected,
+ )
+ _, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
+ assertmsg = '"{}" JSON output mismatches'.format(router.name)
+ assert result is None, assertmsg
+
+ # Check BGP IPv4 routing tables after unsetting no retain flag
+ logger.info("Checking BGP IPv4 routes for convergence on r2")
+ router = tgen.gears['r1']
+ router.vtysh_cmd("configure\nrouter bgp 65500\naddress-family ipv4 vpn\nbgp retain route-target all\n")
+
+ # Check IPv4 VPN routing tables on r1
+ logger.info("Checking IPv4 routes for convergence on r1")
+ router = tgen.gears['r1']
+ json_file = "{}/{}/ipv4_vpn_routes_unfiltered.json".format(CWD, router.name)
+ if not os.path.isfile(json_file):
+ logger.info("skipping file {}".format(json_file))
+ assert 0, 'ipv4_vpn_routes_unfiltered.json file not found'
+ return
+
+ expected = json.loads(open(json_file).read())
+ test_func = partial(
+ topotest.router_json_cmp,
+ router,
+ "show bgp ipv4 vpn json",
+ expected,
+ )
+ _, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
+ assertmsg = '"{}" JSON output mismatches'.format(router.name)
+ assert result is None, assertmsg
+
+def test_memory_leak():
+ "Run the memory leak test and report results."
+ tgen = get_topogen()
+ if not tgen.is_memleak_enabled():
+ pytest.skip("Memory leak test/report is disabled")
+
+ tgen.report_memory_leaks()
+
+
+if __name__ == "__main__":
+ args = ["-s"] + sys.argv[1:]
+ sys.exit(pytest.main(args))
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