diff options
Diffstat (limited to 'tests/topotests/bgp_maximum_prefix_invalid_update')
6 files changed, 140 insertions, 0 deletions
diff --git a/tests/topotests/bgp_maximum_prefix_invalid_update/__init__.py b/tests/topotests/bgp_maximum_prefix_invalid_update/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/tests/topotests/bgp_maximum_prefix_invalid_update/__init__.py diff --git a/tests/topotests/bgp_maximum_prefix_invalid_update/r1/bgpd.conf b/tests/topotests/bgp_maximum_prefix_invalid_update/r1/bgpd.conf new file mode 100644 index 0000000..6211042 --- /dev/null +++ b/tests/topotests/bgp_maximum_prefix_invalid_update/r1/bgpd.conf @@ -0,0 +1,6 @@ +router bgp 65000 + no bgp ebgp-requires-policy + neighbor 192.168.255.2 remote-as 65001 + neighbor 192.168.255.2 timers 3 10 + address-family ipv4 unicast + redistribute connected diff --git a/tests/topotests/bgp_maximum_prefix_invalid_update/r1/zebra.conf b/tests/topotests/bgp_maximum_prefix_invalid_update/r1/zebra.conf new file mode 100644 index 0000000..0a283c0 --- /dev/null +++ b/tests/topotests/bgp_maximum_prefix_invalid_update/r1/zebra.conf @@ -0,0 +1,9 @@ +! +interface lo + ip address 172.16.255.254/32 +! +interface r1-eth0 + ip address 192.168.255.1/24 +! +ip forwarding +! diff --git a/tests/topotests/bgp_maximum_prefix_invalid_update/r2/bgpd.conf b/tests/topotests/bgp_maximum_prefix_invalid_update/r2/bgpd.conf new file mode 100644 index 0000000..005425e --- /dev/null +++ b/tests/topotests/bgp_maximum_prefix_invalid_update/r2/bgpd.conf @@ -0,0 +1,6 @@ +router bgp 65001 + no bgp ebgp-requires-policy + neighbor 192.168.255.1 remote-as 65000 + neighbor 192.168.255.1 timers 3 10 + address-family ipv4 + neighbor 192.168.255.1 maximum-prefix 1 diff --git a/tests/topotests/bgp_maximum_prefix_invalid_update/r2/zebra.conf b/tests/topotests/bgp_maximum_prefix_invalid_update/r2/zebra.conf new file mode 100644 index 0000000..606c17b --- /dev/null +++ b/tests/topotests/bgp_maximum_prefix_invalid_update/r2/zebra.conf @@ -0,0 +1,6 @@ +! +interface r2-eth0 + ip address 192.168.255.2/24 +! +ip forwarding +! diff --git a/tests/topotests/bgp_maximum_prefix_invalid_update/test_bgp_maximum_prefix_invalid_update.py b/tests/topotests/bgp_maximum_prefix_invalid_update/test_bgp_maximum_prefix_invalid_update.py new file mode 100644 index 0000000..5c34ebf --- /dev/null +++ b/tests/topotests/bgp_maximum_prefix_invalid_update/test_bgp_maximum_prefix_invalid_update.py @@ -0,0 +1,113 @@ +#!/usr/bin/env python + +# +# bgp_local_as_private_remove.py +# Part of NetDEF Topology Tests +# +# Copyright (c) 2019 by +# Network Device Education Foundation, Inc. ("NetDEF") +# +# 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_maximum_prefix_invalid_update.py: +Test if unnecesarry UPDATE message like below: + +[Error] Error parsing NLRI +%NOTIFICATION: sent to neighbor X.X.X.X 3/10 (UPDATE Message Error/Invalid Network Field) 0 bytes + +is not sent if maximum-prefix count is overflow. +""" + +import os +import sys +import json +import pytest + +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +from lib.topogen import Topogen, TopoRouter, get_topogen + +pytestmark = [pytest.mark.bgpd] + + +def build_topo(tgen): + for routern in range(1, 3): + tgen.add_router("r{}".format(routern)) + + switch = tgen.add_switch("s1") + switch.add_link(tgen.gears["r1"]) + switch.add_link(tgen.gears["r2"]) + + +def setup_module(mod): + tgen = Topogen(build_topo, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + + for i, (rname, router) in enumerate(router_list.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.start_router() + + +def teardown_module(mod): + tgen = get_topogen() + tgen.stop_topology() + + +def test_bgp_maximum_prefix_invalid(): + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + def _bgp_converge(router): + while True: + output = json.loads( + tgen.gears[router].vtysh_cmd("show ip bgp neighbor 192.168.255.1 json") + ) + if output["192.168.255.1"]["connectionsEstablished"] > 0: + return True + + def _bgp_parsing_nlri(router): + cmd_max_exceeded = ( + 'grep "%MAXPFXEXCEED: No. of IPv4 Unicast prefix received" bgpd.log' + ) + cmdt_error_parsing_nlri = 'grep "Error parsing NLRI" bgpd.log' + output_max_exceeded = tgen.gears[router].run(cmd_max_exceeded) + output_error_parsing_nlri = tgen.gears[router].run(cmdt_error_parsing_nlri) + + if len(output_max_exceeded) > 0: + if len(output_error_parsing_nlri) > 0: + return False + return True + + if _bgp_converge("r2"): + assert _bgp_parsing_nlri("r2") == True + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |