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hostapd/tests/hwsim/vm/parallel-vm.py
Johannes Berg e339511007 tests: Optionally start telnet server inside VMs 
If telnetd is installed and --telnet <port> is passed on the
vm-run.sh command line, start a telnet server (directly connected
to bash, no login) inside the VM(s) to be able to look into them
when something is wrong. Use a user network in qemu with a single
host forward from the specified port for this, listening only on
'localhost'.

Please note that this provides unauthenticated access to the guest
system from anything that can open a TCP connection on the host system.
The guess system does have access to reading all files on the host that
the user account running kvm has access to (and even write access if the
default ROTAG ,readonly parameter is cleared). In other words, this
option should not be used on any multiuser systems where kvm is run
under user accounts that are not dedicated for testing purposes (i.e.,
do not have access to any files that should not be readable to
everyone).

This needs CONFIG_VIRTIO_NET=y in the guest kernel.

For parallel-vm.py, the --telnet argument specifies the base port
and each VM index (0, 1, ...) is added to it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-05 14:26:36 +02:00

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#!/usr/bin/env python2
#
# Parallel VM test case executor
# Copyright (c) 2014-2018, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
from __future__ import print_function
import curses
import fcntl
import logging
import os
import subprocess
import sys
import time
logger = logging.getLogger()
# Test cases that take significantly longer time to execute than average.
long_tests = [ "ap_roam_open",
"wpas_mesh_password_mismatch_retry",
"wpas_mesh_password_mismatch",
"hostapd_oom_wpa2_psk_connect",
"ap_hs20_fetch_osu_stop",
"ap_roam_wpa2_psk",
"ibss_wpa_none_ccmp",
"nfc_wps_er_handover_pk_hash_mismatch_sta",
"go_neg_peers_force_diff_freq",
"p2p_cli_invite",
"sta_ap_scan_2b",
"ap_pmf_sta_unprot_deauth_burst",
"ap_bss_add_remove_during_ht_scan",
"wext_scan_hidden",
"autoscan_exponential",
"nfc_p2p_client",
"wnm_bss_keep_alive",
"ap_inactivity_disconnect",
"scan_bss_expiration_age",
"autoscan_periodic",
"discovery_group_client",
"concurrent_p2pcli",
"ap_bss_add_remove",
"wpas_ap_wps",
"wext_pmksa_cache",
"ibss_wpa_none",
"ap_ht_40mhz_intolerant_ap",
"ibss_rsn",
"discovery_pd_retries",
"ap_wps_setup_locked_timeout",
"ap_vht160",
"dfs_radar",
"dfs",
"dfs_ht40_minus",
"dfs_etsi",
"ap_acs_dfs",
"grpform_cred_ready_timeout",
"hostapd_oom_wpa2_eap_connect",
"wpas_ap_dfs",
"autogo_many",
"hostapd_oom_wpa2_eap",
"ibss_open",
"proxyarp_open_ebtables",
"proxyarp_open_ebtables_ipv6",
"radius_failover",
"obss_scan_40_intolerant",
"dbus_connect_oom",
"proxyarp_open",
"proxyarp_open_ipv6",
"ap_wps_iteration",
"ap_wps_iteration_error",
"ap_wps_pbc_timeout",
"ap_wps_http_timeout",
"p2p_go_move_reg_change",
"p2p_go_move_active",
"p2p_go_move_scm",
"p2p_go_move_scm_peer_supports",
"p2p_go_move_scm_peer_does_not_support",
"p2p_go_move_scm_multi" ]
def get_failed(vm):
failed = []
for i in range(num_servers):
failed += vm[i]['failed']
return failed
def vm_read_stdout(vm, i):
global total_started, total_passed, total_failed, total_skipped
global rerun_failures
ready = False
try:
out = vm['proc'].stdout.read()
except:
return False
logger.debug("VM[%d] stdout.read[%s]" % (i, out))
pending = vm['pending'] + out
lines = []
while True:
pos = pending.find('\n')
if pos < 0:
break
line = pending[0:pos].rstrip()
pending = pending[(pos + 1):]
logger.debug("VM[%d] stdout full line[%s]" % (i, line))
if line.startswith("READY"):
ready = True
elif line.startswith("PASS"):
ready = True
total_passed += 1
elif line.startswith("FAIL"):
ready = True
total_failed += 1
vals = line.split(' ')
if len(vals) < 2:
logger.info("VM[%d] incomplete FAIL line: %s" % (i, line))
name = line
else:
name = vals[1]
logger.debug("VM[%d] test case failed: %s" % (i, name))
vm['failed'].append(name)
elif line.startswith("NOT-FOUND"):
ready = True
total_failed += 1
logger.info("VM[%d] test case not found" % i)
elif line.startswith("SKIP"):
ready = True
total_skipped += 1
elif line.startswith("START"):
total_started += 1
if len(vm['failed']) == 0:
vals = line.split(' ')
if len(vals) >= 2:
vm['fail_seq'].append(vals[1])
vm['out'] += line + '\n'
lines.append(line)
vm['pending'] = pending
return ready
def show_progress(scr):
global num_servers
global vm
global dir
global timestamp
global tests
global first_run_failures
global total_started, total_passed, total_failed, total_skipped
total_tests = len(tests)
logger.info("Total tests: %d" % total_tests)
scr.leaveok(1)
scr.addstr(0, 0, "Parallel test execution status", curses.A_BOLD)
for i in range(0, num_servers):
scr.addstr(i + 1, 0, "VM %d:" % (i + 1), curses.A_BOLD)
scr.addstr(i + 1, 10, "starting VM")
scr.addstr(num_servers + 1, 0, "Total:", curses.A_BOLD)
scr.addstr(num_servers + 1, 20, "TOTAL={} STARTED=0 PASS=0 FAIL=0 SKIP=0".format(total_tests))
scr.refresh()
completed_first_pass = False
rerun_tests = []
while True:
running = False
first_running = False
updated = False
for i in range(0, num_servers):
if completed_first_pass:
continue
if vm[i]['first_run_done']:
continue
if not vm[i]['proc']:
continue
if vm[i]['proc'].poll() is not None:
vm[i]['proc'] = None
scr.move(i + 1, 10)
scr.clrtoeol()
log = '{}/{}.srv.{}/console'.format(dir, timestamp, i + 1)
with open(log, 'r') as f:
if "Kernel panic" in f.read():
scr.addstr("kernel panic")
logger.info("VM[%d] kernel panic" % i)
else:
scr.addstr("unexpected exit")
logger.info("VM[%d] unexpected exit" % i)
updated = True
continue
running = True
first_running = True
try:
err = vm[i]['proc'].stderr.read()
vm[i]['err'] += err
logger.debug("VM[%d] stderr.read[%s]" % (i, err))
except:
pass
if vm_read_stdout(vm[i], i):
scr.move(i + 1, 10)
scr.clrtoeol()
updated = True
if not tests:
vm[i]['first_run_done'] = True
scr.addstr("completed first round")
logger.info("VM[%d] completed first round" % i)
continue
else:
name = tests.pop(0)
vm[i]['proc'].stdin.write(name + '\n')
scr.addstr(name)
logger.debug("VM[%d] start test %s" % (i, name))
if not first_running and not completed_first_pass:
logger.info("First round of testing completed")
if tests:
logger.info("Unexpected test cases remaining from first round: " + str(tests))
raise Exception("Unexpected test cases remaining from first round")
completed_first_pass = True
for name in get_failed(vm):
if rerun_failures:
rerun_tests.append(name)
first_run_failures.append(name)
for i in range(num_servers):
if not completed_first_pass:
continue
if not vm[i]['proc']:
continue
if vm[i]['proc'].poll() is not None:
vm[i]['proc'] = None
scr.move(i + 1, 10)
scr.clrtoeol()
log = '{}/{}.srv.{}/console'.format(dir, timestamp, i + 1)
with open(log, 'r') as f:
if "Kernel panic" in f.read():
scr.addstr("kernel panic")
logger.info("VM[%d] kernel panic" % i)
else:
scr.addstr("completed run")
logger.info("VM[%d] completed run" % i)
updated = True
continue
running = True
try:
err = vm[i]['proc'].stderr.read()
vm[i]['err'] += err
logger.debug("VM[%d] stderr.read[%s]" % (i, err))
except:
pass
ready = False
if vm[i]['first_run_done']:
vm[i]['first_run_done'] = False
ready = True
else:
ready = vm_read_stdout(vm[i], i)
if ready:
scr.move(i + 1, 10)
scr.clrtoeol()
updated = True
if not rerun_tests:
vm[i]['proc'].stdin.write('\n')
scr.addstr("shutting down")
logger.info("VM[%d] shutting down" % i)
else:
name = rerun_tests.pop(0)
vm[i]['proc'].stdin.write(name + '\n')
scr.addstr(name + "(*)")
logger.debug("VM[%d] start test %s (*)" % (i, name))
if not running:
break
if updated:
scr.move(num_servers + 1, 10)
scr.clrtoeol()
scr.addstr("{} %".format(int(100.0 * (total_passed + total_failed + total_skipped) / total_tests)))
scr.addstr(num_servers + 1, 20, "TOTAL={} STARTED={} PASS={} FAIL={} SKIP={}".format(total_tests, total_started, total_passed, total_failed, total_skipped))
failed = get_failed(vm)
if len(failed) > 0:
scr.move(num_servers + 2, 0)
scr.clrtoeol()
scr.addstr("Failed test cases: ")
count = 0
for f in failed:
count += 1
if count > 30:
scr.addstr('...')
scr.clrtoeol()
break
scr.addstr(f)
scr.addstr(' ')
scr.move(0, 35)
scr.clrtoeol()
if rerun_tests:
scr.addstr("(RETRY FAILED %d)" % len(rerun_tests))
elif rerun_failures:
pass
elif first_run_failures:
scr.addstr("(RETRY FAILED)")
scr.refresh()
time.sleep(0.25)
scr.refresh()
time.sleep(0.3)
def main():
import argparse
import os
global num_servers
global vm
global dir
global timestamp
global tests
global first_run_failures
global total_started, total_passed, total_failed, total_skipped
global rerun_failures
total_started = 0
total_passed = 0
total_failed = 0
total_skipped = 0
debug_level = logging.INFO
rerun_failures = True
timestamp = int(time.time())
scriptsdir = os.path.dirname(os.path.realpath(sys.argv[0]))
p = argparse.ArgumentParser(description='run multiple testing VMs in parallel')
p.add_argument('num_servers', metavar='number of VMs', type=int, choices=range(1, 100),
help="number of VMs to start")
p.add_argument('-f', dest='testmodules', metavar='<test module>',
help='execute only tests from these test modules',
type=str, nargs='+')
p.add_argument('-1', dest='no_retry', action='store_const', const=True, default=False,
help="don't retry failed tests automatically")
p.add_argument('--debug', dest='debug', action='store_const', const=True, default=False,
help="enable debug logging")
p.add_argument('--codecov', dest='codecov', action='store_const', const=True, default=False,
help="enable code coverage collection")
p.add_argument('--shuffle-tests', dest='shuffle', action='store_const', const=True, default=False,
help="shuffle test cases to randomize order")
p.add_argument('--short', dest='short', action='store_const', const=True,
default=False,
help="only run short-duration test cases")
p.add_argument('--long', dest='long', action='store_const', const=True,
default=False,
help="include long-duration test cases")
p.add_argument('--valgrind', dest='valgrind', action='store_const',
const=True, default=False,
help="run tests under valgrind")
p.add_argument('--telnet', dest='telnet', metavar='<baseport>', type=int,
help="enable telnet server inside VMs, specify the base port here")
p.add_argument('params', nargs='*')
args = p.parse_args()
dir = os.environ.get('HWSIM_TEST_LOG_DIR', '/tmp/hwsim-test-logs')
try:
os.makedirs(dir)
except:
pass
num_servers = args.num_servers
rerun_failures = not args.no_retry
if args.debug:
debug_level = logging.DEBUG
extra_args = []
if args.valgrind:
extra_args += [ '--valgrind' ]
if args.long:
extra_args += [ '--long' ]
if args.codecov:
print("Code coverage - build separate binaries")
logdir = os.path.join(dir, str(timestamp))
os.makedirs(logdir)
subprocess.check_call([os.path.join(scriptsdir, 'build-codecov.sh'),
logdir])
codecov_args = ['--codecov_dir', logdir]
codecov = True
else:
codecov_args = []
codecov = False
first_run_failures = []
if args.params:
tests = args.params
else:
tests = []
cmd = [ os.path.join(os.path.dirname(scriptsdir), 'run-tests.py'),
'-L' ]
if args.testmodules:
cmd += [ "-f" ]
cmd += args.testmodules
lst = subprocess.Popen(cmd, stdout=subprocess.PIPE)
for l in lst.stdout.readlines():
name = l.split(' ')[0]
tests.append(name)
if len(tests) == 0:
sys.exit("No test cases selected")
if args.shuffle:
from random import shuffle
shuffle(tests)
elif num_servers > 2 and len(tests) > 100:
# Move test cases with long duration to the beginning as an
# optimization to avoid last part of the test execution running a long
# duration test case on a single VM while all other VMs have already
# completed their work.
for l in long_tests:
if l in tests:
tests.remove(l)
tests.insert(0, l)
if args.short:
tests = [t for t in tests if t not in long_tests]
logger.setLevel(debug_level)
log_handler = logging.FileHandler('parallel-vm.log')
log_handler.setLevel(debug_level)
fmt = "%(asctime)s %(levelname)s %(message)s"
log_formatter = logging.Formatter(fmt)
log_handler.setFormatter(log_formatter)
logger.addHandler(log_handler)
vm = {}
for i in range(0, num_servers):
print("\rStarting virtual machine {}/{}".format(i + 1, num_servers),
end='')
logger.info("Starting virtual machine {}/{}".format(i + 1, num_servers))
cmd = [os.path.join(scriptsdir, 'vm-run.sh'), '--delay', str(i),
'--timestamp', str(timestamp),
'--ext', 'srv.%d' % (i + 1),
'-i'] + codecov_args + extra_args
if args.telnet:
cmd += [ '--telnet', str(args.telnet + i) ]
vm[i] = {}
vm[i]['first_run_done'] = False
vm[i]['proc'] = subprocess.Popen(cmd,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
vm[i]['out'] = ""
vm[i]['pending'] = ""
vm[i]['err'] = ""
vm[i]['failed'] = []
vm[i]['fail_seq'] = []
for stream in [ vm[i]['proc'].stdout, vm[i]['proc'].stderr ]:
fd = stream.fileno()
fl = fcntl.fcntl(fd, fcntl.F_GETFL)
fcntl.fcntl(fd, fcntl.F_SETFL, fl | os.O_NONBLOCK)
print('')
curses.wrapper(show_progress)
with open('{}/{}-parallel.log'.format(dir, timestamp), 'w') as f:
for i in range(0, num_servers):
f.write('VM {}\n{}\n{}\n'.format(i, vm[i]['out'], vm[i]['err']))
failed = get_failed(vm)
if first_run_failures:
print("To re-run same failure sequence(s):")
for i in range(0, num_servers):
if len(vm[i]['failed']) == 0:
continue
print("./vm-run.sh", end=' ')
if args.long:
print("--long", end=' ')
skip = len(vm[i]['fail_seq'])
skip -= min(skip, 30)
for t in vm[i]['fail_seq']:
if skip > 0:
skip -= 1
continue
print(t, end=' ')
print('')
print("Failed test cases:")
for f in first_run_failures:
print(f, end=' ')
logger.info("Failed: " + f)
print('')
double_failed = []
for name in failed:
double_failed.append(name)
for test in first_run_failures:
double_failed.remove(test)
if not rerun_failures:
pass
elif failed and not double_failed:
print("All failed cases passed on retry")
logger.info("All failed cases passed on retry")
elif double_failed:
print("Failed even on retry:")
for f in double_failed:
print(f, end=' ')
logger.info("Failed on retry: " + f)
print('')
res = "TOTAL={} PASS={} FAIL={} SKIP={}".format(total_started,
total_passed,
total_failed,
total_skipped)
print(res)
logger.info(res)
print("Logs: " + dir + '/' + str(timestamp))
logger.info("Logs: " + dir + '/' + str(timestamp))
for i in range(0, num_servers):
if len(vm[i]['pending']) > 0:
logger.info("Unprocessed stdout from VM[%d]: '%s'" %
(i, vm[i]['pending']))
log = '{}/{}.srv.{}/console'.format(dir, timestamp, i + 1)
with open(log, 'r') as f:
if "Kernel panic" in f.read():
print("Kernel panic in " + log)
logger.info("Kernel panic in " + log)
if codecov:
print("Code coverage - preparing report")
for i in range(num_servers):
subprocess.check_call([os.path.join(scriptsdir,
'process-codecov.sh'),
logdir + ".srv.%d" % (i + 1),
str(i)])
subprocess.check_call([os.path.join(scriptsdir, 'combine-codecov.sh'),
logdir])
print("file://%s/index.html" % logdir)
logger.info("Code coverage report: file://%s/index.html" % logdir)
if double_failed or (failed and not rerun_failures):
logger.info("Test run complete - failures found")
sys.exit(2)
if failed:
logger.info("Test run complete - failures found on first run; passed on retry")
sys.exit(1)
logger.info("Test run complete - no failures")
sys.exit(0)
if __name__ == "__main__":
main()
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