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tests: Add a test for mesh gate forwarding

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This test checks that mesh nodes forward frames for unknown
destinations to the mesh gates.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
This commit is contained in:
Bob Copeland 2016-02-27 20:51:25 -05:00 committed by Jouni Malinen
parent dbd183c717
commit fa7f9570f2
1 changed files with 51 additions and 0 deletions
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51
tests/hwsim/test_wpas_mesh.py
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@ -8,11 +8,14 @@
import logging import logging
logger = logging.getLogger() logger = logging.getLogger()
import os
import subprocess import subprocess
import time
import hwsim_utils import hwsim_utils
from wpasupplicant import WpaSupplicant from wpasupplicant import WpaSupplicant
from utils import HwsimSkip, alloc_fail from utils import HwsimSkip, alloc_fail
from tshark import run_tshark
def check_mesh_support(dev, secure=False): def check_mesh_support(dev, secure=False):
if "MESH" not in dev.get_capability("modes"): if "MESH" not in dev.get_capability("modes"):
@ -699,3 +702,51 @@ def _test_wpas_mesh_reconnect(dev):
check_mesh_peer_connected(dev[1]) check_mesh_peer_connected(dev[1])
dev[0].dump_monitor() dev[0].dump_monitor()
dev[1].dump_monitor() dev[1].dump_monitor()
def test_wpas_mesh_gate_forwarding(dev, apdev, p):
"""Mesh forwards traffic to unknown sta to mesh gates"""
addr0 = dev[0].own_addr()
addr1 = dev[1].own_addr()
addr2 = dev[2].own_addr()
external_sta = '02:11:22:33:44:55'
# start 3 node connected mesh
check_mesh_support(dev[0])
for i in range(3):
add_open_mesh_network(dev[i])
check_mesh_group_added(dev[i])
for i in range(3):
check_mesh_peer_connected(dev[i])
hwsim_utils.test_connectivity(dev[0], dev[1])
hwsim_utils.test_connectivity(dev[1], dev[2])
hwsim_utils.test_connectivity(dev[0], dev[2])
# dev0 and dev1 are mesh gates
subprocess.call(['iw', 'dev', dev[0].ifname, 'set', 'mesh_param',
'mesh_gate_announcements=1'])
subprocess.call(['iw', 'dev', dev[1].ifname, 'set', 'mesh_param',
'mesh_gate_announcements=1'])
# wait for gate announcement frames
time.sleep(1)
# data frame from dev2 -> external sta should be sent to both gates
dev[2].request("DATA_TEST_CONFIG 1")
dev[2].request("DATA_TEST_TX {} {} 0".format(external_sta, addr2))
dev[2].request("DATA_TEST_CONFIG 0")
capfile = os.path.join(p['logdir'], "hwsim0.pcapng")
filt = "wlan.sa==%s && wlan_mgt.fixed.mesh_addr5==%s" % (addr2,
external_sta)
for i in range(15):
da = run_tshark(capfile, filt, [ "wlan.da" ])
if addr0 in da and addr1 in da:
logger.debug("Frames seen in tshark iteration %d" % i)
break
time.sleep(0.3)
if addr0 not in da:
raise Exception("Frame to gate %s not observed" % addr0)
if addr1 not in da:
raise Exception("Frame to gate %s not observed" % addr1)