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4 # test_bgp_flowspec_topo.py
5 # Part of NetDEF Topology Tests
7 # Copyright (c) 2019 by 6WIND
9 # Permission to use, copy, modify, and/or distribute this software
10 # for any purpose with or without fee is hereby granted, provided
11 # that the above copyright notice and this permission notice appear
14 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
15 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
17 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
18 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
19 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
20 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
25 test_bgp_flowspec_topo.py: Test BGP topology with Flowspec EBGP peering
58 # Save the Current Working Directory to find configuration files.
59 CWD
= os
.path
.dirname(os
.path
.realpath(__file__
))
60 sys
.path
.append(os
.path
.join(CWD
, "../"))
62 # pylint: disable=C0413
63 # Import topogen and topotest helpers
64 from lib
import topotest
65 from lib
.topogen
import Topogen
, TopoRouter
, get_topogen
66 from lib
.topolog
import logger
68 # Required to instantiate the topology builder class.
71 pytestmark
= [pytest
.mark
.bgpd
]
74 #####################################################
76 ## Network Topology Definition
78 #####################################################
84 # Setup Control Path Switch 1. r1-eth0
85 switch
= tgen
.add_switch("s1")
86 switch
.add_link(tgen
.gears
["r1"])
88 ## Add eBGP ExaBGP neighbors
89 peer_ip
= "10.0.1.101" ## peer
90 peer_route
= "via 10.0.1.1" ## router
91 peer
= tgen
.add_exabgp_peer("peer1", ip
=peer_ip
, defaultRoute
=peer_route
)
95 #####################################################
99 #####################################################
102 def setup_module(module
):
103 tgen
= Topogen(build_topo
, module
.__name
__)
105 tgen
.start_topology()
106 # check for zebra capability
107 router
= tgen
.gears
["r1"]
109 # Get r1 reference and run Daemons
110 logger
.info("Launching BGP and ZEBRA on r1")
111 router
= tgen
.gears
["r1"]
113 TopoRouter
.RD_ZEBRA
, os
.path
.join(CWD
, "{}/zebra.conf".format("r1"))
116 TopoRouter
.RD_BGP
, os
.path
.join(CWD
, "{}/bgpd.conf".format("r1"))
120 peer_list
= tgen
.exabgp_peers()
121 for pname
, peer
in peer_list
.items():
122 peer_dir
= os
.path
.join(CWD
, pname
)
123 env_file
= os
.path
.join(CWD
, "exabgp.env")
124 peer
.start(peer_dir
, env_file
)
128 def teardown_module(module
):
133 def test_bgp_convergence():
134 "Test for BGP topology convergence"
137 # Skip if previous fatal error condition is raised
139 if tgen
.routers_have_failure():
140 pytest
.skip(tgen
.errors
)
142 logger
.info("waiting for bgp convergence")
145 router
= tgen
.gears
["r1"]
146 reffile
= os
.path
.join(CWD
, "r1/summary.txt")
148 expected
= json
.loads(open(reffile
).read())
150 test_func
= functools
.partial(
151 topotest
.router_json_cmp
, router
, "show bgp summary json", expected
153 _
, res
= topotest
.run_and_expect(test_func
, None, count
=90, wait
=0.5)
154 assertmsg
= "BGP router network did not converge"
155 assert res
is None, assertmsg
158 def test_bgp_flowspec():
161 # Skip if previous fatal error condition is raised
162 if tgen
.routers_have_failure():
163 pytest
.skip(tgen
.errors
)
165 router
= tgen
.gears
["r1"]
167 logger
.info("Check BGP FS entry for 3.3.3.3 with redirect IP")
168 output
= router
.vtysh_cmd(
169 "show bgp ipv4 flowspec 3.3.3.3", isjson
=False, daemon
="bgpd"
173 "NH 50.0.0.2" not in output
174 or "FS:redirect IP" not in output
175 or "Packet Length < 200" not in output
177 assertmsg
= "traffic to 3.3.3.3 should have been detected as FS entry. NOK"
180 logger
.info("Check BGP FS entry for 3.3.3.3 with redirect IP OK")
182 logger
.info("Check BGP FS entry for 3::3 with redirect IP")
183 output
= router
.vtysh_cmd(
184 "show bgp ipv6 flowspec 3::3", isjson
=False, daemon
="bgpd"
188 "NH 50::2" not in output
189 or "FS:redirect IP" not in output
190 or "Packet Length < 200" not in output
192 assertmsg
= "traffic to 3::3 should have been detected as FS entry. NOK"
195 logger
.info("Check BGP FS entry for 3::3 with redirect IP OK")
198 if __name__
== "__main__":
200 args
= ["-s"] + sys
.argv
[1:]
201 ret
= pytest
.main(args
)