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019a4d6c | 1 | #!/usr/bin/python |
acddc0ed | 2 | # SPDX-License-Identifier: ISC |
019a4d6c DS |
3 | |
4 | # | |
5 | # Copyright (c) 2021 by VMware, Inc. ("VMware") | |
6 | # Used Copyright (c) 2018 by Network Device Education Foundation, Inc. | |
7 | # ("NetDEF") in this file. | |
8 | # | |
019a4d6c DS |
9 | |
10 | ||
11 | """OSPF Basic Functionality Automation.""" | |
12 | import os | |
13 | import sys | |
14 | import time | |
15 | import pytest | |
16 | ||
17 | # Save the Current Working Directory to find configuration files. | |
18 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
19 | sys.path.append(os.path.join(CWD, "../")) | |
20 | ||
21 | # pylint: disable=C0413 | |
22 | # Import topogen and topotest helpers | |
23 | from lib.topogen import Topogen, get_topogen | |
24 | ||
25 | # Import topoJson from lib, to create topology and initial configuration | |
26 | from lib.common_config import ( | |
27 | start_topology, | |
28 | write_test_header, | |
29 | write_test_footer, | |
30 | reset_config_on_routers, | |
31 | step, | |
32 | create_interfaces_cfg, | |
019a4d6c DS |
33 | scapy_send_raw_packet, |
34 | ) | |
35 | ||
36 | from lib.topolog import logger | |
37 | from lib.topojson import build_config_from_json | |
38 | ||
39 | from lib.ospf import ( | |
40 | verify_ospf_neighbor, | |
41 | clear_ospf, | |
42 | verify_ospf_gr_helper, | |
43 | create_router_ospf, | |
44 | ) | |
45 | ||
cbdecd68 DS |
46 | pytestmark = [pytest.mark.ospfd] |
47 | ||
019a4d6c DS |
48 | # Global variables |
49 | topo = None | |
50 | Iters = 5 | |
51 | sw_name = None | |
52 | intf = None | |
53 | intf1 = None | |
54 | pkt = None | |
55 | ||
56 | """ | |
57 | Topology: | |
58 | ||
59 | Please view in a fixed-width font such as Courier. | |
60 | Topo : Broadcast Networks | |
61 | DUT - HR RR | |
62 | +---+ +---+ +---+ +---+ | |
63 | |R0 + +R1 + +R2 + +R3 | | |
64 | +-+-+ +-+-+ +-+-+ +-+-+ | |
65 | | | | | | |
66 | | | | | | |
67 | --+-----------+--------------+---------------+----- | |
68 | Ethernet Segment | |
69 | ||
70 | Testcases: | |
71 | ||
72 | TC1. Verify by default helper support is disabled for FRR ospf | |
73 | TC2. OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor | |
74 | sends grace lsa, helps RR to restart gracefully (RR = DR) | |
75 | TC3. OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor | |
76 | sends grace lsa, helps RR to restart gracefully (RR = BDR) | |
77 | TC4. OSPF GR on Broadcast : Verify DUT enters Helper mode when neighbor | |
78 | sends grace lsa, helps RR to restart gracefully (RR = DRother) | |
79 | TC5. OSPF GR on P2P : Verify DUT enters Helper mode when neighbor sends | |
80 | grace lsa, helps RR to restart gracefully. | |
81 | TC6. Verify all the show commands newly introducted as part of ospf | |
82 | helper support - Json Key verification wrt to show commands. | |
83 | TC7. Verify helper when grace lsa is received with different configured | |
84 | value in process level (higher, lower, grace lsa timer above 1800) | |
85 | TC8. Verify helper functionality when dut is helping RR and new grace lsa | |
86 | is received from RR. | |
87 | """ | |
88 | ||
89 | ||
90 | def setup_module(mod): | |
91 | """ | |
92 | Sets up the pytest environment | |
93 | ||
94 | * `mod`: module name | |
95 | """ | |
96 | global topo, intf, intf1, sw_name, pkt | |
97 | testsuite_run_time = time.asctime(time.localtime(time.time())) | |
98 | logger.info("Testsuite start time: {}".format(testsuite_run_time)) | |
99 | logger.info("=" * 40) | |
100 | ||
101 | logger.info("Running setup_module to create topology") | |
102 | ||
103 | # This function initiates the topology build with Topogen... | |
104 | json_file = "{}/ospf_gr_helper.json".format(CWD) | |
105 | tgen = Topogen(json_file, mod.__name__) | |
106 | global topo | |
107 | topo = tgen.json_topo | |
108 | # ... and here it calls Mininet initialization functions. | |
109 | ||
019a4d6c DS |
110 | # Starting topology, create tmp files which are loaded to routers |
111 | # to start daemons and then start routers | |
991a971f | 112 | start_topology(tgen) |
019a4d6c DS |
113 | |
114 | # Creating configuration from JSON | |
115 | build_config_from_json(tgen, topo) | |
116 | ||
117 | # Don't run this test if we have any failure. | |
118 | if tgen.routers_have_failure(): | |
119 | pytest.skip(tgen.errors) | |
120 | ||
121 | ospf_covergence = verify_ospf_neighbor(tgen, topo, lan=True) | |
74dd0c84 | 122 | assert ospf_covergence is True, "setup_module :Failed \n Error: {}".format( |
019a4d6c DS |
123 | ospf_covergence |
124 | ) | |
125 | ||
126 | sw_name = "s1" | |
127 | intf = topo["routers"]["r0"]["links"][sw_name]["interface"] | |
128 | intf1 = topo["routers"]["r1"]["links"][sw_name]["interface"] | |
129 | pkt = topo["routers"]["r1"]["opq_lsa_hex"] | |
130 | ||
131 | logger.info("Running setup_module() done") | |
132 | ||
133 | ||
134 | def teardown_module(): | |
135 | """Teardown the pytest environment""" | |
136 | ||
137 | logger.info("Running teardown_module to delete topology") | |
138 | ||
139 | tgen = get_topogen() | |
140 | ||
141 | try: | |
142 | # Stop toplogy and Remove tmp files | |
82db2cd1 | 143 | tgen.stop_topology() |
019a4d6c DS |
144 | |
145 | except OSError: | |
146 | # OSError exception is raised when mininet tries to stop switch | |
147 | # though switch is stopped once but mininet tries to stop same | |
148 | # switch again, where it ended up with exception | |
149 | pass | |
150 | ||
151 | ||
152 | def delete_ospf(): | |
153 | """delete ospf process after each test""" | |
154 | tgen = get_topogen() | |
155 | step("Delete ospf process") | |
156 | for rtr in topo["routers"]: | |
157 | ospf_del = {rtr: {"ospf": {"delete": True}}} | |
158 | result = create_router_ospf(tgen, topo, ospf_del) | |
159 | assert result is True, "Testcase: Failed \n Error: {}".format(result) | |
160 | ||
161 | ||
162 | # ################################## | |
163 | # Test cases start here. | |
164 | # ################################## | |
165 | ||
166 | ||
167 | def test_ospf_gr_helper_tc7_p1(request): | |
168 | """ | |
169 | Test ospf gr helper | |
170 | Verify helper when grace lsa is received with different configured | |
171 | value in process level (higher, lower, grace lsa timer above 1800) | |
172 | """ | |
173 | tc_name = request.node.name | |
174 | write_test_header(tc_name) | |
175 | tgen = get_topogen() | |
176 | ||
177 | # Don't run this test if we have any failure. | |
178 | if tgen.routers_have_failure(): | |
179 | pytest.skip(tgen.errors) | |
180 | ||
181 | global topo, intf, intf1, pkt | |
182 | ||
183 | step("Bring up the base config as per the topology") | |
184 | step( | |
185 | "Configure DR priority as 99 in RR , DUT dr priority = 98 " | |
186 | "& reset ospf process in all the routers" | |
187 | ) | |
188 | step( | |
189 | "Enable GR on RR and DUT with grace period on RR = 333" | |
190 | "and grace period on DUT = 300" | |
191 | ) | |
192 | reset_config_on_routers(tgen) | |
193 | ospf_covergence = verify_ospf_neighbor(tgen, topo, lan=True) | |
194 | assert ( | |
195 | ospf_covergence is True | |
74dd0c84 | 196 | ), "OSPF is not after reset config \n Error: {}".format(ospf_covergence) |
019a4d6c DS |
197 | ospf_gr_r0 = { |
198 | "r0": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} | |
199 | } | |
200 | result = create_router_ospf(tgen, topo, ospf_gr_r0) | |
201 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
202 | ||
203 | ospf_gr_r1 = { | |
204 | "r1": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} | |
205 | } | |
206 | result = create_router_ospf(tgen, topo, ospf_gr_r1) | |
207 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
208 | ||
209 | input_dict = {"supportedGracePeriod": 1800} | |
210 | dut = "r0" | |
211 | result = verify_ospf_gr_helper(tgen, topo, dut, input_dict) | |
212 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
213 | ||
214 | step("Configure grace period = 1801 on RR and restart ospf .") | |
215 | grace_period_1801 = "01005e00000570708bd051ef080045c0005cbeb10000015907d111010101e00000050204004801010101000000009714000000000000000000000000000100010209030000000101010180000001c8e9002c000100040000016800020001010000000003000411010101" | |
216 | gracelsa_sent = scapy_send_raw_packet(tgen, topo, "r1", intf1, grace_period_1801) | |
217 | ||
218 | step("Verify R0 does not enter helper mode.") | |
219 | input_dict = {"activeRestarterCnt": 1} | |
220 | dut = "r0" | |
221 | result = verify_ospf_gr_helper(tgen, topo, dut, input_dict, expected=False) | |
222 | assert ( | |
223 | result is not True | |
74dd0c84 | 224 | ), "Testcase {} : Failed. DUT entered helper role \n Error: {}".format( |
019a4d6c DS |
225 | tc_name, result |
226 | ) | |
227 | ||
228 | delete_ospf() | |
229 | ||
230 | write_test_footer(tc_name) | |
231 | ||
232 | ||
233 | def test_ospf_gr_helper_tc8_p1(request): | |
234 | """ | |
235 | Test ospf gr helper | |
236 | ||
237 | Verify helper functionality when dut is helping RR and new grace lsa | |
238 | is received from RR. | |
239 | """ | |
240 | tc_name = request.node.name | |
241 | write_test_header(tc_name) | |
242 | tgen = get_topogen() | |
243 | ||
244 | # Don't run this test if we have any failure. | |
245 | if tgen.routers_have_failure(): | |
246 | pytest.skip(tgen.errors) | |
247 | ||
248 | global topo, intf, intf1, pkt | |
249 | ||
250 | step("Bring up the base config as per the topology") | |
251 | step("Enable GR") | |
252 | reset_config_on_routers(tgen) | |
253 | ospf_covergence = verify_ospf_neighbor(tgen, topo, lan=True) | |
254 | assert ( | |
255 | ospf_covergence is True | |
74dd0c84 | 256 | ), "OSPF is not after reset config \n Error: {}".format(ospf_covergence) |
019a4d6c DS |
257 | ospf_gr_r0 = { |
258 | "r0": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} | |
259 | } | |
260 | result = create_router_ospf(tgen, topo, ospf_gr_r0) | |
261 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
262 | ||
263 | ospf_gr_r1 = { | |
264 | "r1": {"ospf": {"graceful-restart": {"helper enable": [], "opaque": True}}} | |
265 | } | |
266 | result = create_router_ospf(tgen, topo, ospf_gr_r1) | |
267 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
268 | ||
269 | input_dict = {"supportedGracePeriod": 1800} | |
270 | dut = "r0" | |
271 | result = verify_ospf_gr_helper(tgen, topo, dut, input_dict) | |
272 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
273 | ||
274 | step("Verify that DUT enters into helper mode.") | |
275 | ||
276 | input_dict = {"activeRestarterCnt": 1} | |
277 | gracelsa_sent = False | |
278 | repeat = 0 | |
279 | dut = "r0" | |
280 | while not gracelsa_sent and repeat < Iters: | |
281 | gracelsa_sent = scapy_send_raw_packet(tgen, topo, "r1", intf1, pkt) | |
282 | result = verify_ospf_gr_helper(tgen, topo, dut, input_dict) | |
283 | if isinstance(result, str): | |
284 | repeat += 1 | |
285 | gracelsa_sent = False | |
286 | ||
287 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
288 | ||
289 | step("Send the Grace LSA again to DUT when RR is in GR.") | |
290 | input_dict = {"activeRestarterCnt": 1} | |
291 | gracelsa_sent = False | |
292 | repeat = 0 | |
293 | dut = "r0" | |
294 | while not gracelsa_sent and repeat < Iters: | |
295 | gracelsa_sent = scapy_send_raw_packet(tgen, topo, "r1", intf1, pkt) | |
296 | result = verify_ospf_gr_helper(tgen, topo, dut, input_dict) | |
297 | if isinstance(result, str): | |
298 | repeat += 1 | |
299 | gracelsa_sent = False | |
300 | ||
301 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
302 | ||
303 | delete_ospf() | |
304 | ||
305 | write_test_footer(tc_name) | |
306 | ||
307 | ||
308 | if __name__ == "__main__": | |
309 | args = ["-s"] + sys.argv[1:] | |
310 | sys.exit(pytest.main(args)) |