--- /dev/null
+#!/usr/bin/env python
+
+# Copyright (c) 2021 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.
+#
+
+"""
+Test if we send ONLY GUA address for route-server-client peers.
+"""
+
+import os
+import sys
+import json
+import pytest
+import functools
+
+pytestmark = pytest.mark.bgpd
+
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+
+# pylint: disable=C0413
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+
+pytestmark = [pytest.mark.bgpd]
+
+
+def build_topo(tgen):
+ for routern in range(1, 4):
+ tgen.add_router("r{}".format(routern))
+
+ 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["r2"])
+ switch.add_link(tgen.gears["r3"])
+
+
+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_route_server_client():
+ tgen = get_topogen()
+
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ r1 = tgen.gears["r1"]
+ r2 = tgen.gears["r2"]
+
+ def _bgp_converge(router):
+ output = json.loads(router.vtysh_cmd("show bgp 2001:db8:f::3/128 json"))
+ expected = {
+ "prefix": "2001:db8:f::3/128",
+ "paths": [{"nexthops": [{"ip": "2001:db8:3::2"}]}],
+ }
+ return topotest.json_cmp(output, expected)
+
+ test_func = functools.partial(_bgp_converge, r1)
+ _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+ assert result is None, "Cannot see BGP GUA next hop from r3 in r1"
+
+ def _bgp_single_next_hop(router):
+ output = json.loads(router.vtysh_cmd("show bgp 2001:db8:f::3/128 json"))
+ return len(output["paths"][0]["nexthops"])
+
+ assert (
+ _bgp_single_next_hop(r1) == 1
+ ), "Not ONLY one Next Hop received for 2001:db8:f::3/128"
+
+ def _bgp_gua_lla_next_hop(router):
+ output = json.loads(router.vtysh_cmd("show bgp view RS 2001:db8:f::3/128 json"))
+ expected = {
+ "prefix": "2001:db8:f::3/128",
+ "paths": [
+ {
+ "nexthops": [
+ {
+ "ip": "2001:db8:3::2",
+ "hostname": "r3",
+ "afi": "ipv6",
+ "scope": "global",
+ },
+ {"hostname": "r3", "afi": "ipv6", "scope": "link-local"},
+ ]
+ }
+ ],
+ }
+ return topotest.json_cmp(output, expected)
+
+ test_func = functools.partial(_bgp_gua_lla_next_hop, r2)
+ _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+ assert result is None, "Cannot see BGP LLA next hop from r3 in r2"
+
+
+if __name__ == "__main__":
+ args = ["-s"] + sys.argv[1:]
+ sys.exit(pytest.main(args))
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