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# -*- coding: utf-8 eval: (blacken-mode 1) -*-
# SPDX-License-Identifier: ISC
#
# January 23 2024, Christian Hopps <chopps@labn.net>
#
# Copyright (c) 2024, LabN Consulting, L.L.C.
#
"""
Test YANG Notifications
"""
import json
import logging
import os
import re
import pytest
from lib.micronet import Timeout, comm_error
from lib.topogen import Topogen
from lib.topotest import json_cmp
from oper import check_kernel_32
pytestmark = [pytest.mark.ripd, pytest.mark.staticd, pytest.mark.mgmtd]
CWD = os.path.dirname(os.path.realpath(__file__))
@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 myreadline(f):
buf = ""
while True:
# logging.debug("READING 1 CHAR")
c = f.read(1)
if not c:
return buf if buf else None
buf += c
# logging.debug("READ CHAR: '%s'", c)
if c == "\n":
return buf
def _wait_output(f, regex, maxwait=120):
timeout = Timeout(maxwait)
while not timeout.is_expired():
# line = p.stdout.readline()
line = myreadline(f)
if not line:
assert None, "EOF waiting for '{}'".format(regex)
line = line.rstrip()
if line:
logging.debug("GOT LINE: '%s'", line)
m = re.search(regex, line)
if m:
return m
assert None, "Failed to get output matching '{}' withint {} actual {}s".format(
regex, maxwait, timeout.elapsed()
)
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, "")
fe_client_path = CWD + "/../lib/fe_client.py"
rc, _, _ = r1.cmd_status(fe_client_path + " --help")
if rc:
pytest.skip("No protoc or present cannot run test")
# Start our FE client in the background
p = r1.popen(
[fe_client_path, "--datastore", "--listen=/frr-interface:lib/interface"]
)
_wait_output(p.stderr, "Connected", maxwait=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_frontend_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, "")
fe_client_path = CWD + "/../lib/fe_client.py"
rc, _, _ = r1.cmd_status(fe_client_path + " --help")
if rc:
pytest.skip("No protoc or present cannot run test")
# Update config to non-matching authentication.
conf = """
conf t
interface r1-eth0
ip rip authentication string bar
"""
r1.cmd_raises("vtysh", stdin=conf)
try:
output = r1.cmd_raises(
fe_client_path + " --listen /frr-ripd:authentication-failure"
)
jsout = json.loads(output)
expected = {"frr-ripd:authentication-failure": {"interface-name": "r1-eth0"}}
result = json_cmp(jsout, expected)
assert result is None
output = r1.cmd_raises(
fe_client_path + " --use-protobuf --listen /frr-ripd:authentication-failure"
)
jsout = json.loads(output)
expected = {"frr-ripd:authentication-failure": {"interface-name": "r1-eth0"}}
result = json_cmp(jsout, expected)
assert result is None
finally:
# Update config to matching authentication.
conf = """
conf t
interface r1-eth0
ip rip authentication string foo
"""
r1.cmd_raises("vtysh", stdin=conf)
def test_frontend_all_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, "")
fe_client_path = CWD + "/../lib/fe_client.py"
rc, _, _ = r1.cmd_status(fe_client_path + " --help")
if rc:
pytest.skip("No protoc or present cannot run test")
# Update config to non-matching authentication.
conf = """
conf t
interface r1-eth0
ip rip authentication string bar
"""
r1.cmd_raises("vtysh", stdin=conf)
try:
# The first notifications is a frr-ripd:authentication-type-failure
# All the rest are frr-ripd:authentication-failure so we check for both.
output = r1.cmd_raises(fe_client_path + " --listen /")
jsout = json.loads(output)
expected = {
"frr-ripd:authentication-type-failure": {"interface-name": "r1-eth0"}
}
result = json_cmp(jsout, expected)
if result is not None:
expected = {
"frr-ripd:authentication-failure": {"interface-name": "r1-eth0"}
}
result = json_cmp(jsout, expected)
assert result is None
output = r1.cmd_raises(fe_client_path + " --use-protobuf --listen /")
jsout = json.loads(output)
expected = {"frr-ripd:authentication-failure": {"interface-name": "r1-eth0"}}
result = json_cmp(jsout, expected)
assert result is None
finally:
# Update config to matching authentication.
conf = """
conf t
interface r1-eth0
ip rip authentication string foo
"""
r1.cmd_raises("vtysh", stdin=conf)
def test_backend_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, "")
be_client_path = "/usr/lib/frr/mgmtd_testc"
rc, _, _ = r1.cmd_status(be_client_path + " --help")
if rc:
pytest.skip("No mgmtd_testc")
# Update config to non-matching authentication.
conf = """
conf t
interface r1-eth0
ip rip authentication string bar
"""
r1.cmd_raises("vtysh", stdin=conf)
try:
output = r1.cmd_raises(
be_client_path
+ " --timeout 20 --log file:mgmt_testc.log --listen /frr-ripd"
)
jsout = json.loads(output)
expected = {"frr-ripd:authentication-failure": {"interface-name": "r1-eth0"}}
result = json_cmp(jsout, expected)
assert result is None
finally:
# Update config to matching authentication.
conf = """
conf t
interface r1-eth0
ip rip authentication string foo
"""
r1.cmd_raises("vtysh", stdin=conf)
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