hostap/tests/hwsim/test_wmediumd.py

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# wmediumd sanity checks
# Copyright (c) 2015, Intel Deutschland GmbH
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import tempfile, os, subprocess, errno, hwsim_utils
from utils import HwsimSkip
from test_ap_open import _test_ap_open
from test_wpas_mesh import check_mesh_support, check_mesh_group_added
from test_wpas_mesh import check_mesh_peer_connected, add_open_mesh_network
from test_wpas_mesh import check_mesh_group_removed
CFG = """
ifaces :
{
ids = ["%s", "%s" ];
links = (
(0, 1, 30)
);
};
"""
CFG2 = """
ifaces :
{
ids = ["%s", "%s", "%s"];
links = (
(0, 1, 50),
(0, 2, 50),
(1, 2, -10)
);
};
"""
def output_wmediumd_log(p, params, data):
log_file = open(os.path.abspath(os.path.join(params['logdir'],
'wmediumd.log')), 'a')
log_file.write(data)
log_file.close()
def start_wmediumd(fn, params):
try:
p = subprocess.Popen(['wmediumd', '-c', fn],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
except OSError, e:
if e.errno == errno.ENOENT:
raise HwsimSkip('wmediumd not available')
raise
logs = ''
while True:
line = p.stdout.readline()
if not line:
output_wmediumd_log(p, params, logs)
raise Exception('wmediumd was terminated unexpectedly')
if line.find('REGISTER SENT!') > -1:
break
logs += line
return p
def stop_wmediumd(p, params):
p.terminate()
p.wait()
stdoutdata, stderrdata = p.communicate()
output_wmediumd_log(p, params, stdoutdata)
def test_wmediumd_simple(dev, apdev, params):
"""test a simple wmediumd configuration"""
fd, fn = tempfile.mkstemp()
try:
f = os.fdopen(fd, 'w')
f.write(CFG % (apdev[0]['bssid'], dev[0].own_addr()))
f.close()
p = start_wmediumd(fn, params)
try:
_test_ap_open(dev, apdev)
finally:
stop_wmediumd(p, params)
# test that releasing hwsim works correctly
_test_ap_open(dev, apdev)
finally:
os.unlink(fn)
def test_wmediumd_path_simple(dev, apdev, params):
"""test a mesh path"""
# 0 and 1 is connected
# 0 and 2 is connected
# 1 and 2 is not connected
# 1 --- 0 --- 2
# | |
# +-----X-----+
# This tests if 1 and 2 can communicate each other via 0.
fd, fn = tempfile.mkstemp()
try:
f = os.fdopen(fd, 'w')
f.write(CFG2 % (dev[0].own_addr(), dev[1].own_addr(),
dev[2].own_addr()))
f.close()
p = start_wmediumd(fn, params)
try:
_test_wmediumd_path_simple(dev, apdev)
finally:
stop_wmediumd(p, params)
finally:
os.unlink(fn)
def _test_wmediumd_path_simple(dev, apdev):
for i in range(0, 3):
check_mesh_support(dev[i])
add_open_mesh_network(dev[i], freq="2462", basic_rates="60 120 240")
# Check for mesh joined
for i in range(0, 3):
check_mesh_group_added(dev[i])
state = dev[i].get_status_field("wpa_state")
if state != "COMPLETED":
raise Exception("Unexpected wpa_state on dev" + str(i) + ": " + state)
mode = dev[i].get_status_field("mode")
if mode != "mesh":
raise Exception("Unexpected mode: " + mode)
# Check for peer connected
check_mesh_peer_connected(dev[0])
check_mesh_peer_connected(dev[0])
check_mesh_peer_connected(dev[1])
check_mesh_peer_connected(dev[2])
# Test connectivity 1->2 and 2->1
hwsim_utils.test_connectivity(dev[1], dev[2])
# Check mpath table on 0
res, data = dev[0].cmd_execute(['iw', dev[0].ifname, 'mpath', 'dump'])
if res != 0:
raise Exception("iw command failed on dev0")
if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
data.find(dev[2].own_addr() + ' ' + dev[2].own_addr()) == -1:
raise Exception("mpath not found on dev0:\n" + data)
if data.find(dev[0].own_addr()) > -1:
raise Exception("invalid mpath found on dev0:\n" + data)
# Check mpath table on 1
res, data = dev[1].cmd_execute(['iw', dev[1].ifname, 'mpath', 'dump'])
if res != 0:
raise Exception("iw command failed on dev1")
if data.find(dev[0].own_addr() + ' ' + dev[0].own_addr()) == -1 or \
data.find(dev[2].own_addr() + ' ' + dev[0].own_addr()) == -1:
raise Exception("mpath not found on dev1:\n" + data)
if data.find(dev[2].own_addr() + ' ' + dev[2].own_addr()) > -1 or \
data.find(dev[1].own_addr()) > -1:
raise Exception("invalid mpath found on dev1:\n" + data)
# Check mpath table on 2
res, data = dev[2].cmd_execute(['iw', dev[2].ifname, 'mpath', 'dump'])
if res != 0:
raise Exception("iw command failed on dev2")
if data.find(dev[0].own_addr() + ' ' + dev[0].own_addr()) == -1 or \
data.find(dev[1].own_addr() + ' ' + dev[0].own_addr()) == -1:
raise Exception("mpath not found on dev2:\n" + data)
if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) > -1 or \
data.find(dev[2].own_addr()) > -1:
raise Exception("invalid mpath found on dev2:\n" + data)
# remove mesh groups
for i in range(0, 3):
dev[i].mesh_group_remove()
check_mesh_group_removed(dev[i])
dev[i].dump_monitor()