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Diffstat (limited to 'tests/topotests/ospf_gr_helper/test_ospf_gr_helper2.py')
| -rw-r--r-- | tests/topotests/ospf_gr_helper/test_ospf_gr_helper2.py | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/tests/topotests/ospf_gr_helper/test_ospf_gr_helper2.py b/tests/topotests/ospf_gr_helper/test_ospf_gr_helper2.py new file mode 100644 index 0000000..85646a8 --- /dev/null +++ b/tests/topotests/ospf_gr_helper/test_ospf_gr_helper2.py @@ -0,0 +1,375 @@ +#!/usr/bin/python + +# +# Copyright (c) 2021 by VMware, Inc. ("VMware") +# Used Copyright (c) 2018 by Network Device Education Foundation, Inc. +# ("NetDEF") in this file. +# +# 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 VMWARE DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VMWARE 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. +# + + +"""OSPF Basic Functionality Automation.""" +import os +import sys +import time +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.topogen import Topogen, get_topogen + +# Import topoJson from lib, to create topology and initial configuration +from lib.common_config import ( + start_topology, + write_test_header, + write_test_footer, + reset_config_on_routers, + step, + create_interfaces_cfg, + topo_daemons, + scapy_send_raw_packet, +) + +from lib.topolog import logger +from lib.topojson import build_config_from_json + +from lib.ospf import ( + verify_ospf_neighbor, + clear_ospf, + verify_ospf_gr_helper, + create_router_ospf, +) + +pytestmark = [pytest.mark.ospfd] + +# Global variables +topo = None +Iters = 5 +sw_name = None +intf = None +intf1 = None +pkt = None + +""" +Topology: + + Please view in a fixed-width font such as Courier. + Topo : Broadcast Networks + DUT - HR RR + +---+ +---+ +---+ +---+ + |R0 + +R1 + +R2 + +R3 | + +-+-+ +-+-+ +-+-+ +-+-+ + | | | | + | | | | + --+-----------+--------------+---------------+----- + Ethernet Segment + +Testcases: + +TC1. Verify by default helper support is disabled for FRR ospf +TC2. OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor + sends grace lsa, helps RR to restart gracefully (RR = DR) +TC3. OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor + sends grace lsa, helps RR to restart gracefully (RR = BDR) +TC4. OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor + sends grace lsa, helps RR to restart gracefully (RR = DRother) +TC5. OSPF GR on P2P : Verify DUT enters Helper mode when neighbor sends + grace lsa, helps RR to restart gracefully. +TC6. Verify all the show commands newly introducted as part of ospf + helper support - Json Key verification wrt to show commands. +TC7. Verify helper when grace lsa is received with different configured + value in process level (higher, lower, grace lsa timer above 1800) +TC8. Verify helper functionality when dut is helping RR and new grace lsa + is received from RR. +""" + + +def setup_module(mod): + """ + Sets up the pytest environment + + * `mod`: module name + """ + global topo, intf, intf1, sw_name, pkt + testsuite_run_time = time.asctime(time.localtime(time.time())) + logger.info("Testsuite start time: {}".format(testsuite_run_time)) + logger.info("=" * 40) + + logger.info("Running setup_module to create topology") + + # This function initiates the topology build with Topogen... + json_file = "{}/ospf_gr_helper.json".format(CWD) + tgen = Topogen(json_file, mod.__name__) + global topo + topo = tgen.json_topo + # ... and here it calls Mininet initialization functions. + + # get list of daemons needs to be started for this suite. + daemons = topo_daemons(tgen, topo) + + # Starting topology, create tmp files which are loaded to routers + # to start daemons and then start routers + start_topology(tgen, daemons) + + # Creating configuration from JSON + build_config_from_json(tgen, topo) + + # Don't run this test if we have any failure. + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + ospf_covergence = verify_ospf_neighbor(tgen, topo, lan=True) + assert ospf_covergence is True, "setup_module :Failed \n Error:" " {}".format( + ospf_covergence + ) + + sw_name = "s1" + intf = topo["routers"]["r0"]["links"][sw_name]["interface"] + intf1 = topo["routers"]["r1"]["links"][sw_name]["interface"] + pkt = topo["routers"]["r1"]["opq_lsa_hex"] + + logger.info("Running setup_module() done") + + +def teardown_module(): + """Teardown the pytest environment""" + + logger.info("Running teardown_module to delete topology") + + tgen = get_topogen() + + try: + # Stop toplogy and Remove tmp files + tgen.stop_topology + + except OSError: + # OSError exception is raised when mininet tries to stop switch + # though switch is stopped once but mininet tries to stop same + # switch again, where it ended up with exception + pass + + +def delete_ospf(): + """delete ospf process after each test""" + tgen = get_topogen() + step("Delete ospf process") + for rtr in topo["routers"]: + ospf_del = {rtr: {"ospf": {"delete": True}}} + result = create_router_ospf(tgen, topo, ospf_del) + assert result is True, "Testcase: Failed \n Error: {}".format(result) + + +# ################################## +# Test cases start here. +# ################################## + + +def test_ospf_gr_helper_tc3_p1(request): + """ + OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor + sends grace lsa, helps RR to restart gracefully (RR = BDR) + """ + tc_name = request.node.name + write_test_header(tc_name) + tgen = get_topogen() + + # Don't run this test if we have any failure. + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + global topo, intf, intf1, pkt + + step("Bring up the base config as per the topology") + step( + "Configure DR priority as 99 in RR , DUT dr priority = 98 " + "& reset ospf process in all the routers" + ) + reset_config_on_routers(tgen) + ospf_covergence = verify_ospf_neighbor(tgen, topo, lan=True) + assert ( + ospf_covergence is True + ), "OSPF is not after reset config \n Error:" " {}".format(ospf_covergence) + step( + "Configure DR pririty 100 on R0 and clear ospf neighbors " "on all the routers." + ) + + input_dict = { + "r0": { + "links": { + sw_name: { + "interface": topo["routers"]["r0"]["links"][sw_name]["interface"], + "ospf": {"priority": 100}, + } + } + } + } + + result = create_interfaces_cfg(tgen, input_dict) + assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result) + + step("Clear ospf neighbours in all routers") + for rtr in topo["routers"]: + clear_ospf(tgen, rtr) + + step("Verify that DR election is triggered and R0 is elected as DR") + input_dict = { + "r0": { + "ospf": { + "neighbors": { + "r1": {"state": "Full", "role": "Backup"}, + "r2": {"state": "Full", "role": "DROther"}, + "r3": {"state": "Full", "role": "DROther"}, + } + } + } + } + dut = "r0" + result = verify_ospf_neighbor(tgen, topo, dut, input_dict, lan=True) + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + ospf_gr_r0 = { + "r0": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} + } + result = create_router_ospf(tgen, topo, ospf_gr_r0) + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + ospf_gr_r1 = { + "r1": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} + } + result = create_router_ospf(tgen, topo, ospf_gr_r1) + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + step("Verify that DUT enters into helper mode.") + + input_dict = {"activeRestarterCnt": 1} + gracelsa_sent = False + repeat = 0 + dut = "r0" + while not gracelsa_sent and repeat < Iters: + gracelsa_sent = scapy_send_raw_packet(tgen, topo, "r1", intf1, pkt) + result = verify_ospf_gr_helper(tgen, topo, dut, input_dict) + if isinstance(result, str): + repeat += 1 + gracelsa_sent = False + + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + delete_ospf() + write_test_footer(tc_name) + + +def test_ospf_gr_helper_tc4_p1(request): + """ + OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor + sends grace lsa, helps RR to restart gracefully (RR = DRother) + """ + tc_name = request.node.name + write_test_header(tc_name) + tgen = get_topogen() + + # Don't run this test if we have any failure. + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + global topo, intf, intf1, pkt + + step("Bring up the base config as per the topology") + step( + "Configure DR priority as 99 in RR , DUT dr priority = 98 " + "& reset ospf process in all the routers" + ) + reset_config_on_routers(tgen) + ospf_covergence = verify_ospf_neighbor(tgen, topo, lan=True) + assert ( + ospf_covergence is True + ), "OSPF is not after reset config \n Error:" " {}".format(ospf_covergence) + step( + "Configure DR pririty 100 on R0 and clear ospf neighbors " "on all the routers." + ) + + input_dict = { + "r0": { + "links": { + sw_name: { + "interface": topo["routers"]["r0"]["links"][sw_name]["interface"], + "ospf": {"priority": 0}, + } + } + } + } + + result = create_interfaces_cfg(tgen, input_dict) + assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result) + + step("Clear ospf neighbours in all routers") + for rtr in topo["routers"]: + clear_ospf(tgen, rtr) + + step("Verify that DR election is triggered and R0 is elected as 2-Way") + input_dict = { + "r0": { + "ospf": { + "neighbors": { + "r1": {"state": "Full", "role": "DR"}, + "r2": {"state": "2-Way", "role": "DROther"}, + "r3": {"state": "2-Way", "role": "DROther"}, + } + } + } + } + dut = "r0" + result = verify_ospf_neighbor(tgen, topo, dut, input_dict, lan=True) + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + ospf_gr_r0 = { + "r0": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} + } + result = create_router_ospf(tgen, topo, ospf_gr_r0) + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + ospf_gr_r1 = { + "r1": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} + } + result = create_router_ospf(tgen, topo, ospf_gr_r1) + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + step("Verify that DUT enters into helper mode.") + + input_dict = {"activeRestarterCnt": 1} + gracelsa_sent = False + repeat = 0 + dut = "r0" + while not gracelsa_sent and repeat < Iters: + gracelsa_sent = scapy_send_raw_packet(tgen, topo, "r1", intf1, pkt) + result = verify_ospf_gr_helper(tgen, topo, dut, input_dict) + if isinstance(result, str): + repeat += 1 + gracelsa_sent = False + + assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) + + delete_ospf() + + write_test_footer(tc_name) + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |