1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
# -*- coding: utf-8 eval: (blacken-mode 1) -*-
#
# January 14 2025, Christian Hopps <chopps@labn.net>
#
# Copyright (c) 2025, LabN Consulting, L.L.C.
#
"""
Test YANG Datastore Notifications
"""
import json
import logging
import os
import re
import time
import pytest
from lib.topogen import Topogen
from lib.topotest import json_cmp
from munet.testing.util import waitline
from oper import check_kernel_32
pytestmark = [pytest.mark.ripd, pytest.mark.staticd, pytest.mark.mgmtd]
CWD = os.path.dirname(os.path.realpath(__file__))
FE_CLIENT = CWD + "/../lib/fe_client.py"
@pytest.fixture(scope="module")
def tgen(request):
"Setup/Teardown the environment and provide tgen argument to tests"
topodef = {
"s1": ("r1", "r2"),
}
tgen = Topogen(topodef, request.module.__name__)
tgen.start_topology()
router_list = tgen.routers()
for _, router in router_list.items():
router.load_frr_config("frr.conf")
tgen.start_router()
yield tgen
tgen.stop_topology()
def get_op_and_json(output):
op = ""
path = ""
data = ""
for line in output.split("\n"):
if not line:
continue
if not op:
m = re.match("#OP=([A-Z]*): (.*)", line)
if m:
op = m.group(1)
path = m.group(2)
continue
data += line + "\n"
if not op:
assert False, f"No notifcation op present in:\n{output}"
return op, path, data
def test_frontend_datastore_notification(tgen):
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r1 = tgen.gears["r1"].net
check_kernel_32(r1, "11.11.11.11", 1, "")
rc, _, _ = r1.cmd_status(FE_CLIENT + " --help")
if rc:
pytest.skip("No protoc or present cannot run test")
# Start our FE client in the background
p = r1.popen(
[FE_CLIENT, "--datastore", "--listen=/frr-interface:lib/interface/state"]
)
assert waitline(p.stderr, "Connected", timeout=10)
r1.cmd_raises("ip link set r1-eth0 mtu 1200")
# {"frr-interface:lib":{"interface":[{"name":"r1-eth0","state":{"if-index":2,"mtu":1200,"mtu6":1200,"speed":10000,"metric":0,"phy-address":"ba:fd:de:b5:8b:90"}}]}}
try:
# Wait for FE client to exit
output, error = p.communicate(timeout=10)
op, path, data = get_op_and_json(output)
assert op == "REPLACE"
assert path.startswith("/frr-interface:lib/interface[name='r1-eth0']/state")
jsout = json.loads(data)
expected = json.loads(
'{"frr-interface:lib":{"interface":[{"name":"r1-eth0","state":{"mtu":1200}}]}}'
)
result = json_cmp(jsout, expected)
assert result is None
finally:
p.kill()
r1.cmd_raises("ip link set r1-eth0 mtu 1500")
def test_backend_datastore_update(tgen):
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r1 = tgen.gears["r1"].net
check_kernel_32(r1, "11.11.11.11", 1, "")
be_client_path = "/usr/lib/frr/mgmtd_testc"
rc, _, _ = r1.cmd_status(be_client_path + " --help")
if rc:
pytest.skip("No mgmtd_testc")
# Start our BE client in the background
p = r1.popen(
[
be_client_path,
"--timeout=20",
"--log=file:/dev/stderr",
"--datastore",
"--listen",
"/frr-interface:lib/interface",
]
)
assert waitline(p.stderr, "Got SUBSCR_REPLY success 1", timeout=10)
r1.cmd_raises("ip link set r1-eth0 mtu 1200")
try:
expected = json.loads(
'{"frr-interface:lib":{"interface":[{"name":"r1-eth0","state":{"mtu":1200}}]}}'
)
output, error = p.communicate(timeout=10)
op, path, data = get_op_and_json(output)
jsout = json.loads(data)
result = json_cmp(jsout, expected)
assert result is None
finally:
p.kill()
r1.cmd_raises("ip link set r1-eth0 mtu 1500")
def test_backend_datastore_add_delete(tgen):
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r1 = tgen.gears["r1"].net
check_kernel_32(r1, "11.11.11.11", 1, "")
be_client_path = "/usr/lib/frr/mgmtd_testc"
rc, _, _ = r1.cmd_status(be_client_path + " --help")
if rc:
pytest.skip("No mgmtd_testc")
# Start our BE client in the background
p = r1.popen(
[
be_client_path,
"--timeout=20",
"--log=file:/dev/stderr",
"--notify-count=2",
"--datastore",
"--listen",
"/frr-interface:lib/interface",
]
)
assert waitline(p.stderr, "Got SUBSCR_REPLY success 1", timeout=10)
r1.cmd_raises('vtysh -c "conf t" -c "int foobar"')
try:
assert waitline(
p.stdout,
re.escape('#OP=REPLACE: /frr-interface:lib/interface[name="foobar"]/state'),
timeout=2,
)
r1.cmd_raises('vtysh -c "conf t" -c "no int foobar"')
assert waitline(
p.stdout,
re.escape('#OP=DELETE: /frr-interface:lib/interface[name="foobar"]/state'),
timeout=2,
)
finally:
p.kill()
r1.cmd_raises('vtysh -c "conf t" -c "no int foobar"')
def test_datastore_backend_filters(tgen):
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r1 = tgen.gears["r1"].net
check_kernel_32(r1, "11.11.11.11", 1, "")
rc, _, _ = r1.cmd_status(FE_CLIENT + " --help")
if rc:
pytest.skip("No protoc or present cannot run test")
# Start our FE client in the background
p = r1.popen(
[FE_CLIENT, "--datastore", "--listen=/frr-interface:lib/interface/state"]
)
assert waitline(p.stderr, "Connected", timeout=10)
time.sleep(1)
try:
output = r1.cmd_raises(
'vtysh -c "show mgmt get-data /frr-backend:clients/client/state/notify-selectors"'
)
jsout = json.loads(output)
#
# Verify only zebra has the notify selector as it's the only provider currently
#
state = {"notify-selectors": ["/frr-interface:lib/interface/state"]}
expected = {
"frr-backend:clients": {"client": [{"name": "zebra", "state": state}]}
}
result = json_cmp(jsout, expected, exact=True)
assert result is None
except Exception as error:
logging.error("got exception: %s", error)
raise
finally:
p.kill()
|
