topotests: topology to test MSDP originator ID

Import new topology to test originator ID configuration.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>

diff --git a/tests/topotests/msdp_topo3/__init__.py b/tests/topotests/msdp_topo3/__init__.py
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/tests/topotests/msdp_topo3/r1/frr.conf b/tests/topotests/msdp_topo3/r1/frr.conf
new file mode 100644 (file)
index 0000000..d5b10bf
--- /dev/null
+++ b/tests/topotests/msdp_topo3/r1/frr.conf
@@ -0,0 +1,31 @@
+log commands
+!
+interface r1-eth0
+ ip address 192.168.1.1/24
+ ip pim
+!
+interface r1-eth1
+ ip address 192.168.100.1/24
+ ip igmp
+ ip pim passive
+!
+interface lo
+ ip address 10.254.254.1/32
+ ip pim
+ ip pim use-source 10.254.254.1
+!
+router bgp 65100
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 192.168.1.2 remote-as 65200
+ !
+ address-family ipv4 unicast
+  redistribute connected
+ exit-address-family
+!
+router pim
+ msdp originator-id 10.254.254.1
+ msdp log sa-events
+ msdp peer 192.168.1.2 source 192.168.1.1
+ rp 192.168.1.1
+!
\ No newline at end of file

diff --git a/tests/topotests/msdp_topo3/r2/frr.conf b/tests/topotests/msdp_topo3/r2/frr.conf
new file mode 100644 (file)
index 0000000..245c061
--- /dev/null
+++ b/tests/topotests/msdp_topo3/r2/frr.conf
@@ -0,0 +1,28 @@
+log commands
+!
+interface r2-eth0
+ ip address 192.168.1.2/24
+ ip pim
+!
+interface r2-eth1
+ ip address 192.168.101.1/24
+ ip igmp
+ ip pim passive
+!
+interface lo
+ ip address 10.254.254.2/32
+!
+router bgp 65200
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 192.168.1.1 remote-as 65100
+ !
+ address-family ipv4 unicast
+  redistribute connected
+ exit-address-family
+!
+router pim
+ msdp log sa-events
+ msdp peer 192.168.1.1 source 192.168.1.2
+ rp 192.168.1.2
+!
\ No newline at end of file

diff --git a/tests/topotests/msdp_topo3/test_msdp_topo3.py b/tests/topotests/msdp_topo3/test_msdp_topo3.py
new file mode 100644 (file)
index 0000000..9393ae7
--- /dev/null
+++ b/tests/topotests/msdp_topo3/test_msdp_topo3.py
@@ -0,0 +1,165 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
+
+#
+# test_msdp_topo3.py
+# Part of NetDEF Topology Tests
+#
+# Copyright (c) 2024 by
+# Network Device Education Foundation, Inc. ("NetDEF")
+#
+
+"""
+test_msdp_topo3.py: Test the FRR PIM MSDP peer.
+"""
+
+import os
+import sys
+import json
+from functools import partial
+import re
+import pytest
+
+# Save the Current Working Directory to find configuration files.
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+from lib import topotest
+
+# Required to instantiate the topology builder class.
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+
+from lib.pim import McastTesterHelper
+
+pytestmark = [pytest.mark.bgpd, pytest.mark.pimd]
+
+app_helper = McastTesterHelper()
+
+
+def build_topo(tgen):
+    """
+    +----+     +----+     +----+     +----+
+    | h1 | <-> | r1 | <-> | r2 | <-> | h2 |
+    +----+     +----+     +----+     +----+
+
+          -------------------------->
+
+    Multicast traffic SG(192.168.100.100, 229.1.1.1)
+    """
+
+    # Create 2 routers
+    for routern in range(1, 3):
+        tgen.add_router(f"r{routern}")
+
+    switch = tgen.add_switch("s1")
+    switch.add_link(tgen.gears["r1"])
+    switch.add_link(tgen.gears["r2"])
+
+    # Create a host connected and direct at r1:
+    switch = tgen.add_switch("s2")
+    tgen.add_host("h1", "192.168.100.100/24", "via 192.168.100.1")
+    switch.add_link(tgen.gears["r1"])
+    switch.add_link(tgen.gears["h1"])
+
+    # Create a host connected and direct at r2:
+    switch = tgen.add_switch("s3")
+    tgen.add_host("h2", "192.168.101.100/24", "via 192.168.101.1")
+    switch.add_link(tgen.gears["r2"])
+    switch.add_link(tgen.gears["h2"])
+
+
+def setup_module(mod):
+    "Sets up the pytest environment"
+    tgen = Topogen(build_topo, mod.__name__)
+    tgen.start_topology()
+
+    router_list = tgen.routers()
+    for _, router in router_list.items():
+        router.load_frr_config(os.path.join(CWD, f"{router.name}/frr.conf"))
+
+    # Initialize all routers.
+    tgen.start_router()
+
+    app_helper.init(tgen)
+
+
+def teardown_module():
+    "Teardown the pytest environment"
+    tgen = get_topogen()
+    app_helper.cleanup()
+    tgen.stop_topology()
+
+
+def test_bgp_convergence():
+    "Wait for BGP protocol convergence"
+    tgen = get_topogen()
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    logger.info("waiting for protocols to converge")
+
+    def expect_loopback_route(router, iptype, route, proto):
+        "Wait until route is present on RIB for protocol."
+        logger.info("waiting route {} in {}".format(route, router))
+        test_func = partial(
+            topotest.router_json_cmp,
+            tgen.gears[router],
+            "show {} route json".format(iptype),
+            {route: [{"protocol": proto}]},
+        )
+        _, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
+        assertmsg = '"{}" convergence failure'.format(router)
+        assert result is None, assertmsg
+
+    # Wait for R1
+    expect_loopback_route("r1", "ip", "10.254.254.2/32", "bgp")
+
+    # Wait for R2
+    expect_loopback_route("r2", "ip", "10.254.254.1/32", "bgp")
+
+
+def test_sa_learn():
+    """
+    Test that the learned SA uses the configured originator ID instead
+    of the configured RP.
+    """
+    tgen = get_topogen()
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    MCAST_ADDRESS = "229.1.1.1"
+    app_helper.run("h1", ["--send=0.7", MCAST_ADDRESS, "h1-eth0"])
+    app_helper.run("h2", [MCAST_ADDRESS, "h2-eth0"])
+
+    test_func = partial(
+        topotest.router_json_cmp,
+        tgen.gears["r2"],
+        "show ip msdp sa json",
+        {
+            "229.1.1.1": {
+                "192.168.100.100": {
+                    "rp": "10.254.254.1",
+                    "local": "no",
+                }
+            }
+        }
+    )
+    _, result = topotest.run_and_expect(test_func, None, count=100, wait=1)
+    assert result is None, 'r2 SA convergence failure'
+
+
+def test_memory_leak():
+    "Run the memory leak test and report results."
+    tgen = get_topogen()
+    if not tgen.is_memleak_enabled():
+        pytest.skip("Memory leak test/report is disabled")
+
+    tgen.report_memory_leaks()
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))