tests: Check if route-map works correctly if modifying prefix-lists

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

diff --git a/tests/topotests/bgp_prefix_list_any/__init__.py b/tests/topotests/bgp_prefix_list_any/__init__.py
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/tests/topotests/bgp_prefix_list_any/r1/bgpd.conf b/tests/topotests/bgp_prefix_list_any/r1/bgpd.conf
new file mode 100644 (file)
index 0000000..d822cdb
--- /dev/null
+++ b/tests/topotests/bgp_prefix_list_any/r1/bgpd.conf
@@ -0,0 +1,9 @@
+!
+router bgp 65001
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 192.168.1.2 remote-as external
+ address-family ipv4 unicast
+  network 192.168.0.1/32
+ exit-address-family
+!

diff --git a/tests/topotests/bgp_prefix_list_any/r1/zebra.conf b/tests/topotests/bgp_prefix_list_any/r1/zebra.conf
new file mode 100644 (file)
index 0000000..b29940f
--- /dev/null
+++ b/tests/topotests/bgp_prefix_list_any/r1/zebra.conf
@@ -0,0 +1,4 @@
+!
+int r1-eth0
+ ip address 192.168.1.1/24
+!

diff --git a/tests/topotests/bgp_prefix_list_any/r2/bgpd.conf b/tests/topotests/bgp_prefix_list_any/r2/bgpd.conf
new file mode 100644 (file)
index 0000000..248b5d4
--- /dev/null
+++ b/tests/topotests/bgp_prefix_list_any/r2/bgpd.conf
@@ -0,0 +1,28 @@
+!
+debug bgp updates
+!
+router bgp 65002
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 192.168.1.1 remote-as external
+ address-family ipv4 unicast
+  network 10.10.10.1/32
+  network 10.10.10.2/32
+  network 10.10.10.3/32
+  network 10.10.10.10/32
+  neighbor 192.168.1.1 route-map r1 out
+ exit-address-family
+!
+ip prefix-list r1-1 seq 5 permit 10.10.10.1/32
+ip prefix-list r1-1 seq 10 permit 10.10.10.2/32
+ip prefix-list r1-1 seq 15 permit 10.10.10.3/32
+ip prefix-list r1-2 seq 5 permit 10.10.10.10/32
+!ip prefix-list r1-2 seq 5 deny any
+!
+route-map r1 permit 10
+ match ip address prefix-list r1-1
+exit
+!
+route-map r1 permit 20
+ match ip address prefix-list r1-2
+exit

diff --git a/tests/topotests/bgp_prefix_list_any/r2/zebra.conf b/tests/topotests/bgp_prefix_list_any/r2/zebra.conf
new file mode 100644 (file)
index 0000000..cffe827
--- /dev/null
+++ b/tests/topotests/bgp_prefix_list_any/r2/zebra.conf
@@ -0,0 +1,4 @@
+!
+int r2-eth0
+ ip address 192.168.1.2/24
+!

diff --git a/tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py b/tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py
new file mode 100644 (file)
index 0000000..9446242
--- /dev/null
+++ b/tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
+
+# Copyright (c) 2023 by
+# Donatas Abraitis <donatas@opensourcerouting.org>
+#
+
+"""
+Test if route-map works correctly when modifying prefix-list
+from deny to permit with any, and vice-versa.
+"""
+
+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 setup_module(mod):
+    topodef = {"s1": ("r1", "r2")}
+    tgen = Topogen(topodef, 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_map_prefix_list():
+    tgen = get_topogen()
+
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    r2 = tgen.gears["r2"]
+
+    def _bgp_prefixes_sent(count):
+        output = json.loads(r2.vtysh_cmd("show bgp ipv4 unicast summary json"))
+        expected = {"peers": {"192.168.1.1": {"pfxSnt": count, "state": "Established"}}}
+        return topotest.json_cmp(output, expected)
+
+    test_func = functools.partial(_bgp_prefixes_sent, 4)
+    _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+    assert result is None, "Can't converge initial topology"
+
+    r2.vtysh_cmd(
+        """
+        configure terminal
+            ip prefix-list r1-2 seq 5 deny any
+    """
+    )
+
+    test_func = functools.partial(_bgp_prefixes_sent, 3)
+    _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+    assert result is None, "Only 3 prefixes MUST be advertised, seeing more"
+
+    r2.vtysh_cmd(
+        """
+        configure terminal
+            ip prefix-list r1-2 seq 5 permit 10.10.10.10/32
+    """
+    )
+
+    test_func = functools.partial(_bgp_prefixes_sent, 4)
+    _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+    assert result is None, "More or less prefixes advertised to r1, MUST be 4"
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))