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#!/usr/bin/env python3
# -*- coding: utf-8 eval: (blacken-mode 1) -*-
# SPDX-License-Identifier: MIT
#
# January 17 2022, Christian Hopps <chopps@labn.net>
#
# Copyright 2022, LabN Consulting, L.L.C.
import argparse
import asyncio
import logging
import os
import sys
CWD = os.path.dirname(os.path.realpath(__file__))
CLIENTDIR = os.path.abspath(os.path.join(CWD, "../../../ospfclient"))
if not os.path.exists(CLIENTDIR):
CLIENTDIR = os.path.join(CWD, "/usr/lib/frr")
assert os.path.exists(
os.path.join(CLIENTDIR, "ospfclient.py")
), "can't locate ospfclient.py"
sys.path[0:0] = [CLIENTDIR]
import ospfclient as api # pylint: disable=E0401 # noqa: E402
async def do_monitor(c, args):
cv = asyncio.Condition()
async def cb(new_router_id, _):
assert new_router_id == c.router_id
logging.info("NEW ROUTER ID: %s", new_router_id)
sys.stdout.flush()
async with cv:
cv.notify_all()
logging.debug("API using monitor router ID callback")
await c.monitor_router_id(callback=cb)
for check in args.monitor:
logging.info("Waiting for %s", check)
while True:
async with cv:
got = c.router_id
if str(check) == str(got):
break
logging.debug("expected '%s' != '%s'\nwaiting on notify", check, got)
await cv.wait()
logging.info("SUCCESS: %s", check)
print("SUCCESS: {}".format(check))
sys.stdout.flush()
async def do_wait(c, args):
cv = asyncio.Condition()
async def cb(added, removed):
logging.debug("callback: added: %s removed: %s", added, removed)
sys.stdout.flush()
async with cv:
cv.notify_all()
logging.debug("API using monitor reachable callback")
await c.monitor_reachable(callback=cb)
for w in args.wait:
check = ",".join(sorted(list(w.split(","))))
logging.info("Waiting for %s", check)
while True:
async with cv:
got = ",".join(sorted([str(x) for x in c.reachable_routers]))
if check == got:
break
logging.debug("expected '%s' != '%s'\nwaiting on notify", check, got)
await cv.wait()
logging.info("SUCCESS: %s", check)
print("SUCCESS: {}".format(check))
sys.stdout.flush()
async def async_main(args):
c = api.OspfOpaqueClient(args.server)
await c.connect()
if sys.version_info[1] > 6:
asyncio.create_task(c._handle_msg_loop()) # pylint: disable=W0212
else:
asyncio.get_event_loop().create_task(
c._handle_msg_loop() # pylint: disable=W0212
)
if args.monitor:
await do_monitor(c, args)
if args.wait:
await do_wait(c, args)
return 0
def main(*args):
ap = argparse.ArgumentParser(args)
ap.add_argument(
"--monitor", action="append", help="monitor and wait for this router ID"
)
ap.add_argument("--server", default="localhost", help="OSPF API server")
ap.add_argument(
"--wait", action="append", help="wait for comma-sep set of reachable routers"
)
ap.add_argument("-v", "--verbose", action="store_true", help="be verbose")
args = ap.parse_args()
level = logging.DEBUG if args.verbose else logging.INFO
logging.basicConfig(
level=level, format="%(asctime)s %(levelname)s: TESTER: %(name)s: %(message)s"
)
# We need to flush this output to stdout right away
h = logging.StreamHandler(sys.stdout)
h.flush = sys.stdout.flush
f = logging.Formatter("%(asctime)s %(name)s: %(levelname)s: %(message)s")
h.setFormatter(f)
logger = logging.getLogger("ospfclient")
logger.addHandler(h)
logger.propagate = False
logging.info("ctester: starting")
sys.stdout.flush()
status = 3
try:
if sys.version_info[1] > 6:
status = asyncio.run(async_main(args))
else:
loop = asyncio.get_event_loop()
try:
status = loop.run_until_complete(async_main(args))
finally:
loop.close()
except KeyboardInterrupt:
logging.info("Exiting, received KeyboardInterrupt in main")
except Exception as error:
logging.info("Exiting, unexpected exception %s", error, exc_info=True)
else:
logging.info("api: clean exit")
return status
if __name__ == "__main__":
exit_status = main()
sys.exit(exit_status)
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