--- /dev/null
+#!/usr/bin/env python
+
+#
+# test_sbfd_topo1.py
+# basic test cases for sbfd initiator and reflector
+#
+# Copyright (c) 2025 by Alibaba, Inc.
+#
+# 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.
+#
+
+"""
+<template>.py: Test <template>.
+"""
+
+import os
+import sys
+import pytest
+import json
+import re
+import time
+import pdb
+from functools import partial
+
+# 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
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+from lib.common_config import required_linux_kernel_version
+
+"""
+test_sbfd_topo1.py: test simple sbfd with IPv6 encap. RT1 is sbfd Initiator, RT2 is sbfd Reflector
+
+ +----+----+ +----+----+
+ | | | |
+ | RT1 | 1 | RT2 |
+ | +--------+ |
+ | 2001::10| | 2001::20|
+ +----+----+ +----+----+
+
+"""
+pytestmark = [pytest.mark.bfdd, pytest.mark.sbfd]
+
+def show_bfd_check(router, status, type='echo', encap=None):
+ output = router.cmd("vtysh -c 'show bfd peers'")
+ if encap:
+ # check encap data if any
+ pattern1 = re.compile(r'encap-data {}'.format(encap))
+ ret = pattern1.findall(output)
+ if len(ret) <= 0:
+ logger.info("encap-data not match")
+ return False
+
+ # check status
+ pattern2 = re.compile(r'Status: {}'.format(status))
+ ret = pattern2.findall(output)
+ if len(ret) <= 0:
+ logger.info("Status not match")
+ return False
+
+ # check type
+ pattern3 = re.compile(r'Peer Type: {}'.format(type))
+ ret = pattern3.findall(output)
+ if len(ret) <= 0:
+ logger.info("Peer Type not match")
+ return False
+
+ logger.info("all check passed")
+ return True
+
+def build_topo(tgen):
+ "Test topology builder"
+
+ # This function only purpose is to define allocation and relationship
+ # between routers, switches and hosts.
+ #
+ # Example
+ #
+ # Create 2 routers
+ for routern in range(1, 3):
+ tgen.add_router('r{}'.format(routern))
+
+ # Create a switch with just one router connected to it to simulate a
+ # empty network.
+ switch = tgen.add_switch('s1')
+ switch.add_link(tgen.gears['r1'])
+ switch.add_link(tgen.gears['r2'])
+
+def setup_module(mod):
+ "Sets up the pytest environment"
+ # This function initiates the topology build with Topogen...
+ tgen = Topogen(build_topo, mod.__name__)
+ # ... and here it calls Mininet initialization functions.
+ tgen.start_topology()
+
+ # This is a sample of configuration loading.
+ router_list = tgen.routers()
+
+ for rname, router in router_list.items():
+ router.load_frr_config(
+ os.path.join(CWD, "{}/frr.conf".format(rname)),
+ [(TopoRouter.RD_ZEBRA, None), (TopoRouter.RD_BFD, None)])
+
+ # After loading the configurations, this function loads configured daemons.
+ tgen.start_router()
+
+ # Verify that we are using the proper version and that the BFD
+ # daemon exists.
+ for router in router_list.values():
+ # Check for Version
+ if router.has_version('<', '5.1'):
+ tgen.set_error('Unsupported FRR version')
+ break
+
+def teardown_module(mod):
+ "Teardown the pytest environment"
+ tgen = get_topogen()
+ # This function tears down the whole topology.
+ tgen.stop_topology()
+
+
+# step 1 : config sbfd Initiator and reflector
+def test_sbfd_config_check():
+ "Assert that config sbfd and check sbfd status."
+ # Required linux kernel version for this suite to run.
+ result = required_linux_kernel_version("4.5")
+ if result is not True:
+ pytest.skip("Kernel requirements are not met")
+
+ tgen = get_topogen()
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ # config sbfd
+ r1 = tgen.net['r1']
+ r1.cmd("ping -c 5 2001::20")
+ r1.cmd("vtysh -c 'config t' -c 'bfd' -c 'peer 2001::20 bfd-mode sbfd-init bfd-name 2-44 local-address 2001::10 remote-discr 1234'")
+
+ r2 = tgen.net['r2']
+ r2.cmd("vtysh -c 'config t' -c 'bfd' -c 'sbfd reflector source-address 2001::20 discriminator 1234'")
+
+ check_func = partial(
+ show_bfd_check, r1, 'up', type='sbfd initiator'
+ )
+ success, _ = topotest.run_and_expect(check_func, True, count=15, wait=1)
+ assert success is True, "sbfd not up in 15 seconds"
+
+# step 2: shutdown if and no shutdown if then check sbfd status
+def test_sbfd_updown_interface():
+ "Assert that updown interface then check sbfd status."
+ # Required linux kernel version for this suite to run.
+ result = required_linux_kernel_version("4.5")
+ if result is not True:
+ pytest.skip("Kernel requirements are not met")
+
+ tgen = get_topogen()
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ r1 = tgen.net['r1']
+ r2 = tgen.net['r2']
+
+ # shutdown interface
+ r2.cmd("vtysh -c 'config t' -c 'interface r2-eth0' -c 'shutdown'")
+
+ check_func = partial(
+ show_bfd_check, r1, 'down', type='sbfd initiator'
+ )
+ success, _ = topotest.run_and_expect(check_func, True, count=15, wait=1)
+ assert success is True, "sbfd not down in 15 seconds after shut"
+
+ # up interface
+ r2.cmd("vtysh -c 'config t' -c 'interface r2-eth0' -c 'no shutdown'")
+ check_func = partial(
+ show_bfd_check, r1, 'up', type='sbfd initiator'
+ )
+ success, _ = topotest.run_and_expect(check_func, True, count=15, wait=1)
+ assert success is True, "sbfd not up in 15 seconds after no shut"
+
+# step 3: change transmit-interval and check sbfd status according to the interval time
+def test_sbfd_change_transmit_interval():
+ "Assert that sbfd status changes align with transmit-interval."
+ # Required linux kernel version for this suite to run.
+ result = required_linux_kernel_version("4.5")
+ if result is not True:
+ pytest.skip("Kernel requirements are not met")
+
+ tgen = get_topogen()
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ r1 = tgen.net['r1']
+ r2 = tgen.net['r2']
+
+ r1.cmd("vtysh -c 'config t' -c 'bfd' -c 'peer 2001::20 bfd-mode sbfd-init bfd-name 2-44 local-address 2001::10 remote-discr 1234' -c 'transmit-interval 3000'")
+ #wait sometime for polling finish
+ time.sleep(1)
+
+ # shutdown interface
+ r2.cmd("vtysh -c 'config t' -c 'interface r2-eth0' -c 'shutdown'")
+
+ #wait enough time for timeout
+ check_func = partial(
+ show_bfd_check, r1, 'down', type='sbfd initiator'
+ )
+ success, _ = topotest.run_and_expect(check_func, True, count=5, wait=3)
+ assert success is True, "sbfd not down as expected"
+
+ r2.cmd("vtysh -c 'config t' -c 'interface r2-eth0' -c 'no shutdown'")
+ check_func = partial(
+ show_bfd_check, r1, 'up', type='sbfd initiator'
+ )
+ success, _ = topotest.run_and_expect(check_func, True, count=15, wait=1)
+ assert success is True, "sbfd not up in 15 seconds after no shut"
+
+ r1.cmd("vtysh -c 'config t' -c 'bfd' -c 'no peer 2001::20 bfd-mode sbfd-init bfd-name 2-44 local-address 2001::10 remote-discr 1234'")
+ success = show_bfd_check(r1, 'up', type='sbfd initiator')
+ assert success is False, "sbfd not deleted as unexpected"
+
+# Memory leak test template
+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))
projects / matthieu / frr.git / commitdiff