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hostapd/tests/hwsim/test_wmediumd.py
Arowa Suliman 7b50f2f04c Replace "sanity" with "validity" 
Replaced the word "sanity" with the inclusive word "validity". The
comment in acs_survey_interference_factor() was referring a function
that does not exist, so remove it instead of trying rename the function.

Signed-off-by: Arowa Suliman <arowa@chromium.org>
2021-10-11 20:25:21 +03:00

480 lines
16 KiB
Python
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# wmediumd validity 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, time
from utils import HwsimSkip
from wpasupplicant import WpaSupplicant
from tshark import run_tshark
from test_ap_open import _test_ap_open
from test_scan import test_scan_only_one as _test_scan_only_one
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
class LocalVariables:
revs = []
CFG = """
ifaces :
{
ids = ["%s", "%s"]
links = (
(0, 1, 30)
)
}
"""
CFG2 = """
ifaces :
{
ids = ["%s", "%s", "%s"]
}
model:
{
type = "prob"
links = (
(0, 1, 0.000000),
(0, 2, 0.000000),
(1, 2, 1.000000)
)
}
"""
CFG3 = """
ifaces :
{
ids = ["%s", "%s", "%s", "%s", "%s"]
}
model:
{
type = "prob"
default_prob = 1.0
links = (
(0, 1, 0.000000),
(1, 2, 0.000000),
(2, 3, 0.000000),
(3, 4, 0.000000)
)
}
"""
def get_wmediumd_version():
if len(LocalVariables.revs) > 0:
return LocalVariables.revs
try:
verstr = subprocess.check_output(['wmediumd', '-V']).decode()
except OSError as e:
if e.errno == errno.ENOENT:
raise HwsimSkip('wmediumd not available')
raise
vernum = verstr.split(' ')[1][1:]
LocalVariables.revs = vernum.split('.')
for i in range(0, len(LocalVariables.revs)):
LocalVariables.revs[i] = int(LocalVariables.revs[i])
while len(LocalVariables.revs) < 3:
LocalVariables.revs += [0]
return LocalVariables.revs
def require_wmediumd_version(major, minor, patch):
revs = get_wmediumd_version()
if revs[0] < major or revs[1] < minor or revs[2] < patch:
raise HwsimSkip('wmediumd v%s.%s.%s is too old for this test' %
(revs[0], revs[1], revs[2]))
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 as e:
if e.errno == errno.ENOENT:
raise HwsimSkip('wmediumd not available')
raise
logs = ''
while True:
line = p.stdout.readline().decode()
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.decode())
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.
require_wmediumd_version(0, 3, 1)
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()
def test_wmediumd_path_ttl(dev, apdev, params):
"""Mesh path request TTL"""
# 0 --- 1 --- 2 --- 3 --- 4
# Test the TTL of mesh path request.
# If the TTL is shorter than path, the mesh path request should be dropped.
require_wmediumd_version(0, 3, 1)
local_dev = []
for i in range(0, 3):
local_dev.append(dev[i])
for i in range(5, 7):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan" + str(i))
check_mesh_support(wpas)
temp_dev = wpas.request("MESH_INTERFACE_ADD ifname=mesh" + str(i))
if "FAIL" in temp_dev:
raise Exception("MESH_INTERFACE_ADD failed")
local_dev.append(WpaSupplicant(ifname=temp_dev))
fd, fn = tempfile.mkstemp()
try:
f = os.fdopen(fd, 'w')
f.write(CFG3 % (local_dev[0].own_addr(), local_dev[1].own_addr(),
local_dev[2].own_addr(), local_dev[3].own_addr(),
local_dev[4].own_addr()))
f.close()
p = start_wmediumd(fn, params)
try:
_test_wmediumd_path_ttl(local_dev, True)
_test_wmediumd_path_ttl(local_dev, False)
finally:
stop_wmediumd(p, params)
finally:
os.unlink(fn)
for i in range(5, 7):
wpas.interface_remove("wlan" + str(i))
def _test_wmediumd_path_ttl(dev, ok):
for i in range(0, 5):
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, 5):
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)
# set mesh path request ttl
subprocess.check_call(["iw", "dev", dev[0].ifname, "set", "mesh_param",
"mesh_element_ttl=" + ("4" if ok else "3")])
# Check for peer connected
for i in range(0, 5):
check_mesh_peer_connected(dev[i])
for i in range(1, 4):
check_mesh_peer_connected(dev[i])
# Test connectivity 0->4 and 0->4
hwsim_utils.test_connectivity(dev[0], dev[4], success_expected=ok)
# 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 ok:
if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
data.find(dev[4].own_addr() + ' ' + dev[1].own_addr()) == -1:
raise Exception("mpath not found on dev0:\n" + data)
else:
if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
data.find(dev[4].own_addr() + ' 00:00:00:00:00:00') == -1:
raise Exception("mpath not found on dev0:\n" + data)
if data.find(dev[0].own_addr()) > -1 or \
data.find(dev[2].own_addr()) > -1 or \
data.find(dev[3].own_addr()) > -1:
raise Exception("invalid mpath found on dev0:\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()
def test_wmediumd_path_rann(dev, apdev, params):
"""Mesh path with RANN"""
# 0 and 1 is connected
# 0 and 2 is connected
# 1 and 2 is not connected
# 2 is mesh root and RANN enabled
# 1 --- 0 --- 2
# | |
# +-----X-----+
# This tests if 1 and 2 can communicate each other via 0.
require_wmediumd_version(0, 3, 1)
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_rann(dev, apdev)
finally:
stop_wmediumd(p, params)
finally:
os.unlink(fn)
capfile = os.path.join(params['logdir'], "hwsim0.pcapng")
# check Root STA address in root announcement element
filt = "wlan.fc.type_subtype == 0x000d && " + \
"wlan_mgt.fixed.mesh_action == 0x01 && " + \
"wlan_mgt.tag.number == 126"
out = run_tshark(capfile, filt, ["wlan.rann.root_sta"])
if out is None:
raise Exception("No captured data found\n")
if out.find(dev[2].own_addr()) == -1 or \
out.find(dev[0].own_addr()) > -1 or \
out.find(dev[1].own_addr()) > -1:
raise Exception("RANN should be sent by dev2 only:\n" + out)
# check RANN interval is in range
filt = "wlan.sa == 02:00:00:00:02:00 && " + \
"wlan.fc.type_subtype == 0x000d && " + \
"wlan_mgt.fixed.mesh_action == 0x01 && " + \
"wlan_mgt.tag.number == 126"
out = run_tshark(capfile, filt, ["frame.time_relative"])
if out is None:
raise Exception("No captured data found\n")
lines = out.splitlines()
prev = float(lines[len(lines) - 1])
for i in reversed(list(range(1, len(lines) - 1))):
now = float(lines[i])
if prev - now < 1.0 or 3.0 < prev - now:
raise Exception("RANN interval " + str(prev - now) +
"(sec) should be close to 2.0(sec)\n")
prev = now
# check no one uses broadcast path request
filt = "wlan.da == ff:ff:ff:ff:ff:ff && " + \
"wlan.fc.type_subtype == 0x000d && " + \
"wlan_mgt.fixed.mesh_action == 0x01 && " + \
"wlan_mgt.tag.number == 130"
out = run_tshark(capfile, filt, ["wlan.sa", "wlan.da"])
if out is None:
raise Exception("No captured data found\n")
if len(out) > 0:
raise Exception("invalid broadcast path requests\n" + out)
def _test_wmediumd_path_rann(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)
# set node 2 as RANN supported root
subprocess.check_call(["iw", "dev", dev[0].ifname, "set", "mesh_param",
"mesh_hwmp_rootmode=0"])
subprocess.check_call(["iw", "dev", dev[1].ifname, "set", "mesh_param",
"mesh_hwmp_rootmode=0"])
subprocess.check_call(["iw", "dev", dev[2].ifname, "set", "mesh_param",
"mesh_hwmp_rootmode=4"])
subprocess.check_call(["iw", "dev", dev[2].ifname, "set", "mesh_param",
"mesh_hwmp_rann_interval=2000"])
# 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])
# Wait for RANN frame
time.sleep(10)
# 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()
def test_wmediumd_scan_only_one(dev, apdev, params):
"""Test that scanning with a single active AP only returns that one (wmediund)"""
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_scan_only_one(dev, apdev)
finally:
stop_wmediumd(p, params)
finally:
os.unlink(fn)
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