#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
#
# bgp_ebgp_requires_policy.py
# Copyright (c) 2019 by
# Donatas Abraitis <donatas.abraitis@gmail.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.
-#
"""
bgp_ebgp_requires_policy.py:
Scenario 1:
r1 has a filter applied for outgoing direction,
r2 receives 192.168.255.1/32.
+
Scenario 2:
r3 hasn't a filter appied for outgoing direction,
r4 does not receive 192.168.255.1/32.
+
Scenario 3:
r5 and r6 establish iBGP session which in turn should ignore
RFC8212. All routes for both directions MUST work.
import os
import sys
import json
-import time
import pytest
import functools
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
from lib.topolog import logger
-from mininet.topo import Topo
+pytestmark = [pytest.mark.bgpd]
-class TemplateTopo(Topo):
- def build(self, *_args, **_opts):
- tgen = get_topogen(self)
- for routern in range(1, 7):
- tgen.add_router("r{}".format(routern))
+def build_topo(tgen):
+ for routern in range(1, 7):
+ tgen.add_router("r{}".format(routern))
- switch = tgen.add_switch("s1")
- switch.add_link(tgen.gears["r1"])
- switch.add_link(tgen.gears["r2"])
+ # Scenario 1.
+ 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["r3"])
- switch.add_link(tgen.gears["r4"])
+ # Scenario 2.
+ switch = tgen.add_switch("s2")
+ switch.add_link(tgen.gears["r3"])
+ switch.add_link(tgen.gears["r4"])
- switch = tgen.add_switch("s3")
- switch.add_link(tgen.gears["r5"])
- switch.add_link(tgen.gears["r6"])
+ # Scenario 3.
+ switch = tgen.add_switch("s3")
+ switch.add_link(tgen.gears["r5"])
+ switch.add_link(tgen.gears["r6"])
def setup_module(mod):
- tgen = Topogen(TemplateTopo, mod.__name__)
+ tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
expected = {"routes": {"172.16.255.254/32": [{"valid": True}]}}
return topotest.json_cmp(output, expected)
+ def _bgp_advertised_routes(router):
+ output = json.loads(
+ tgen.gears[router].vtysh_cmd(
+ "show ip bgp neighbor 192.168.255.2 advertised-routes json"
+ )
+ )
+ expected = {
+ "advertisedRoutes": {},
+ "totalPrefixCounter": 0,
+ "filteredPrefixCounter": 0,
+ }
+ return topotest.json_cmp(output, expected)
+
+ # Scenario 1.
+ logger.info("Scenario 1: r2 receives 192.168.255.1/32 from r1")
test_func = functools.partial(_bgp_converge, "r2")
- success, result = topotest.run_and_expect(test_func, None, count=65, wait=2)
- assert success is True, 'Failed bgp convergence (r2) in "{}"'.format(tgen.gears["r2"])
+ success, result = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
+ assert success is True, "Failed bgp convergence (r2)"
test_func = functools.partial(_bgp_has_routes, "r2")
- success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
- assert success is True, 'eBGP policy is not working (r2) in "{}"'.format(tgen.gears["r2"])
+ success, result = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
+ assert success is True, "r2 does not receive 192.168.255.1/32"
+ # Scenario 2.
+ logger.info("Scenario 2: r3 must not send 192.168.255.1/32 to r4")
test_func = functools.partial(_bgp_converge, "r4")
- success, result = topotest.run_and_expect(test_func, None, count=65, wait=2)
- assert success is True, 'Failed bgp convergence (r4) in "{}"'.format(tgen.gears["r4"])
+ success, result = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
+ assert success is True, "Failed bgp convergence (r4)"
- test_func = functools.partial(_bgp_has_routes, "r4")
- success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
- assert success is False, 'eBGP policy is not working (r4) in "{}"'.format(tgen.gears["r4"])
+ test_func = functools.partial(_bgp_advertised_routes, "r3")
+ success, result = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
+ assert success is True, "r3 announced 192.168.255.1/32 to r4"
+ # Scenario 3.
+ logger.info("Scenario 3: r6 receives 192.168.255.1/32 from r5 (iBGP)")
test_func = functools.partial(_bgp_converge, "r6")
- success, result = topotest.run_and_expect(test_func, None, count=65, wait=2)
- assert success is True, 'Failed bgp convergence (r6) in "{}"'.format(tgen.gears["r6"])
+ success, result = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
+ assert success is True, "Failed bgp convergence (r6)"
test_func = functools.partial(_bgp_has_routes, "r6")
- success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
- assert success is True, 'eBGP policy is not working (r6) in "{}"'.format(tgen.gears["r6"])
+ success, result = topotest.run_and_expect(test_func, None, count=120, wait=0.5)
+ assert success is True, "r6 does not receive 192.168.255.1/32"
if __name__ == "__main__":
projects / mirror_frr.git / blobdiff