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tests: Add a test of mesh path request TTL

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Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
This commit is contained in:
Masashi Honma 2017-03-21 10:50:33 +09:00 committed by Jouni Malinen
parent 739779877a
commit 0b287a2af5
1 changed files with 112 additions and 0 deletions
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112
tests/hwsim/test_wmediumd.py
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@ -6,6 +6,7 @@
import tempfile, os, subprocess, errno, hwsim_utils
from utils import HwsimSkip
from wpasupplicant import WpaSupplicant
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
@ -42,6 +43,26 @@ model:
};
"""
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;
@ -205,3 +226,94 @@ def _test_wmediumd_path_simple(dev, apdev):
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()