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hostapd/tests/hwsim/test_wpas_mesh.py
Jouni Malinen ce8ca2f9a0 tests: Make wpas_mesh_max_peering more robust 
The previous version was enabling all three stations at the same time
and left dev[1] and dev[2] competing on getting connected with dev[0]
that allowed only one pairing. This was not exactly robust and the pass
criteria depended on an extra event from either dev[1] or dev[2]. Fix
that by first connecting dev[0] and dev[1] and only after that, start
dev[2]. This allows proper validation of both the peering limit on
dev[0] and no extra event on dev[2].

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-01-02 22:50:27 +02:00

491 lines
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#!/usr/bin/python
#
# wpa_supplicant mesh mode tests
# Copyright (c) 2014, cozybit Inc.
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import logging
logger = logging.getLogger()
import hwsim_utils
from wpasupplicant import WpaSupplicant
def mesh_supported(dev):
flags = int(dev.get_driver_status_field('capa.flags'), 16)
if flags & 0x100000000:
return True
return False
def check_mesh_scan(dev, params, other_started=False, beacon_int=0):
if not other_started:
dev.dump_monitor()
id = dev.request("SCAN " + params)
if "FAIL" in id:
raise Exception("Failed to start scan")
id = int(id)
if other_started:
ev = dev.wait_event(["CTRL-EVENT-SCAN-STARTED"])
if ev is None:
raise Exception("Other scan did not start")
if "id=" + str(id) in ev:
raise Exception("Own scan id unexpectedly included in start event")
ev = dev.wait_event(["CTRL-EVENT-SCAN-RESULTS"])
if ev is None:
raise Exception("Other scan did not complete")
if "id=" + str(id) in ev:
raise Exception(
"Own scan id unexpectedly included in completed event")
ev = dev.wait_event(["CTRL-EVENT-SCAN-STARTED"])
if ev is None:
raise Exception("Scan did not start")
if "id=" + str(id) not in ev:
raise Exception("Scan id not included in start event")
ev = dev.wait_event(["CTRL-EVENT-SCAN-RESULTS"])
if ev is None:
raise Exception("Scan did not complete")
if "id=" + str(id) not in ev:
raise Exception("Scan id not included in completed event")
res = dev.request("SCAN_RESULTS")
if res.find("[MESH]") < 0:
raise Exception("Scan did not contain a MESH network")
bssid = res.splitlines()[1].split(' ')[0]
bss = dev.get_bss(bssid)
if bss is None:
raise Exception("Could not get BSS entry for mesh")
if 'mesh_capability' not in bss:
raise Exception("mesh_capability missing from BSS entry")
if beacon_int:
if 'beacon_int' not in bss:
raise Exception("beacon_int missing from BSS entry")
if str(beacon_int) != bss['beacon_int']:
raise Exception("Unexpected beacon_int in BSS entry: " + bss['beacon_int'])
def check_mesh_group_added(dev):
ev = dev.wait_event(["MESH-GROUP-STARTED"])
if ev is None:
raise Exception("Test exception: Couldn't join mesh")
def check_mesh_group_removed(dev):
ev = dev.wait_event(["MESH-GROUP-REMOVED"])
if ev is None:
raise Exception("Test exception: Couldn't leave mesh")
def check_mesh_peer_connected(dev, timeout=10):
ev = dev.wait_event(["MESH-PEER-CONNECTED"], timeout=timeout)
if ev is None:
raise Exception("Test exception: Remote peer did not connect.")
def check_mesh_peer_disconnected(dev):
ev = dev.wait_event(["MESH-PEER-DISCONNECTED"])
if ev is None:
raise Exception("Test exception: Peer disconnect event not detected.")
def test_wpas_add_set_remove_support(dev):
"""wpa_supplicant MESH add/set/remove network support"""
id = dev[0].add_network()
dev[0].set_network(id, "mode", "5")
dev[0].remove_network(id)
def add_open_mesh_network(dev, ht_mode=False, freq="2412", start=True,
beacon_int=0):
id = dev.add_network()
dev.set_network(id, "mode", "5")
dev.set_network_quoted(id, "ssid", "wpas-mesh-open")
dev.set_network(id, "key_mgmt", "NONE")
dev.set_network(id, "frequency", freq)
if ht_mode:
dev.set_network(id, "mesh_ht_mode", ht_mode)
if beacon_int:
dev.set_network(id, "beacon_int", str(beacon_int))
if start:
dev.mesh_group_add(id)
return id
def test_wpas_mesh_group_added(dev):
"""wpa_supplicant MESH group add"""
if not mesh_supported(dev[0]):
return "skip"
add_open_mesh_network(dev[0])
# Check for MESH-GROUP-STARTED event
check_mesh_group_added(dev[0])
def test_wpas_mesh_group_remove(dev):
"""wpa_supplicant MESH group remove"""
if not mesh_supported(dev[0]):
return "skip"
add_open_mesh_network(dev[0], ht_mode="NOHT")
# Check for MESH-GROUP-STARTED event
check_mesh_group_added(dev[0])
dev[0].mesh_group_remove()
# Check for MESH-GROUP-REMOVED event
check_mesh_group_removed(dev[0])
dev[0].mesh_group_remove()
def test_wpas_mesh_peer_connected(dev):
"""wpa_supplicant MESH peer connected"""
if not mesh_supported(dev[0]):
return "skip"
add_open_mesh_network(dev[0], ht_mode="HT20", beacon_int=160)
add_open_mesh_network(dev[1], ht_mode="HT20", beacon_int=160)
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for peer connected
check_mesh_peer_connected(dev[0])
check_mesh_peer_connected(dev[1])
def test_wpas_mesh_peer_disconnected(dev):
"""wpa_supplicant MESH peer disconnected"""
if not mesh_supported(dev[0]):
return "skip"
add_open_mesh_network(dev[0])
add_open_mesh_network(dev[1])
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for peer connected
check_mesh_peer_connected(dev[0])
check_mesh_peer_connected(dev[1])
# Remove group on dev 1
dev[1].mesh_group_remove()
# Device 0 should get a disconnection event
check_mesh_peer_disconnected(dev[0])
def test_wpas_mesh_mode_scan(dev):
"""wpa_supplicant MESH scan support"""
if not mesh_supported(dev[0]):
return "skip"
add_open_mesh_network(dev[0], ht_mode="HT40+")
add_open_mesh_network(dev[1], ht_mode="HT40+", beacon_int=175)
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for Mesh scan
check_mesh_scan(dev[0], "use_id=1", beacon_int=175)
def test_wpas_mesh_open(dev, apdev):
"""wpa_supplicant open MESH network connectivity"""
if not mesh_supported(dev[0]):
return "skip"
add_open_mesh_network(dev[0], ht_mode="HT40-", freq="2462")
add_open_mesh_network(dev[1], ht_mode="HT40-", freq="2462")
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for peer connected
check_mesh_peer_connected(dev[0])
check_mesh_peer_connected(dev[1])
# Test connectivity 0->1 and 1->0
hwsim_utils.test_connectivity(dev[0], dev[1])
def test_wpas_mesh_open_no_auto(dev, apdev):
"""wpa_supplicant open MESH network connectivity"""
if not mesh_supported(dev[0]):
return "skip"
id = add_open_mesh_network(dev[0], start=False)
dev[0].set_network(id, "dot11MeshMaxRetries", "16")
dev[0].set_network(id, "dot11MeshRetryTimeout", "255")
dev[0].mesh_group_add(id)
id = add_open_mesh_network(dev[1], start=False)
dev[1].set_network(id, "no_auto_peer", "1")
dev[1].mesh_group_add(id)
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for peer connected
check_mesh_peer_connected(dev[0], timeout=30)
check_mesh_peer_connected(dev[1])
# Test connectivity 0->1 and 1->0
hwsim_utils.test_connectivity(dev[0], dev[1])
def add_mesh_secure_net(dev, psk=True):
id = dev.add_network()
dev.set_network(id, "mode", "5")
dev.set_network_quoted(id, "ssid", "wpas-mesh-sec")
dev.set_network(id, "key_mgmt", "SAE")
dev.set_network(id, "frequency", "2412")
if psk:
dev.set_network_quoted(id, "psk", "thisismypassphrase!")
return id
def test_wpas_mesh_secure(dev, apdev):
"""wpa_supplicant secure MESH network connectivity"""
if not mesh_supported(dev[0]):
return "skip"
dev[0].request("SET sae_groups ")
id = add_mesh_secure_net(dev[0])
dev[0].mesh_group_add(id)
dev[1].request("SET sae_groups ")
id = add_mesh_secure_net(dev[1])
dev[1].mesh_group_add(id)
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for peer connected
check_mesh_peer_connected(dev[0])
check_mesh_peer_connected(dev[1])
# Test connectivity 0->1 and 1->0
hwsim_utils.test_connectivity(dev[0], dev[1])
def test_wpas_mesh_secure_sae_group_mismatch(dev, apdev):
"""wpa_supplicant secure MESH and SAE group mismatch"""
if not mesh_supported(dev[0]):
return "skip"
addr0 = dev[0].p2p_interface_addr()
addr1 = dev[1].p2p_interface_addr()
addr2 = dev[2].p2p_interface_addr()
dev[0].request("SET sae_groups 19 25")
id = add_mesh_secure_net(dev[0])
dev[0].mesh_group_add(id)
dev[1].request("SET sae_groups 19")
id = add_mesh_secure_net(dev[1])
dev[1].mesh_group_add(id)
dev[2].request("SET sae_groups 26")
id = add_mesh_secure_net(dev[2])
dev[2].mesh_group_add(id)
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
check_mesh_group_added(dev[2])
ev = dev[0].wait_event(["MESH-PEER-CONNECTED"])
if ev is None:
raise Exception("Remote peer did not connect")
if addr1 not in ev:
raise Exception("Unexpected peer connected: " + ev)
ev = dev[1].wait_event(["MESH-PEER-CONNECTED"])
if ev is None:
raise Exception("Remote peer did not connect")
if addr0 not in ev:
raise Exception("Unexpected peer connected: " + ev)
ev = dev[2].wait_event(["MESH-PEER-CONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected peer connection at dev[2]: " + ev)
ev = dev[0].wait_event(["MESH-PEER-CONNECTED"], timeout=0.1)
if ev is not None:
raise Exception("Unexpected peer connection: " + ev)
ev = dev[1].wait_event(["MESH-PEER-CONNECTED"], timeout=0.1)
if ev is not None:
raise Exception("Unexpected peer connection: " + ev)
dev[0].request("SET sae_groups ")
dev[1].request("SET sae_groups ")
dev[2].request("SET sae_groups ")
def test_wpas_mesh_secure_sae_missing_password(dev, apdev):
"""wpa_supplicant secure MESH and missing SAE password"""
if not mesh_supported(dev[0]):
return "skip"
id = add_mesh_secure_net(dev[0], psk=False)
dev[0].set_network(id, "psk", "8f20b381f9b84371d61b5080ad85cac3c61ab3ca9525be5b2d0f4da3d979187a")
dev[0].mesh_group_add(id)
ev = dev[0].wait_event(["MESH-GROUP-STARTED", "Could not join mesh"],
timeout=5)
if ev is None:
raise Exception("Timeout on mesh start event")
if "MESH-GROUP-STARTED" in ev:
raise Exception("Unexpected mesh group start")
ev = dev[0].wait_event(["MESH-GROUP-STARTED"], timeout=0.1)
if ev is not None:
raise Exception("Unexpected mesh group start")
def test_wpas_mesh_secure_no_auto(dev, apdev):
"""wpa_supplicant secure MESH network connectivity"""
if not mesh_supported(dev[0]):
return "skip"
dev[0].request("SET sae_groups 19")
id = add_mesh_secure_net(dev[0])
dev[0].mesh_group_add(id)
dev[1].request("SET sae_groups 19")
id = add_mesh_secure_net(dev[1])
dev[1].set_network(id, "no_auto_peer", "1")
dev[1].mesh_group_add(id)
# Check for mesh joined
check_mesh_group_added(dev[0])
check_mesh_group_added(dev[1])
# Check for peer connected
check_mesh_peer_connected(dev[0], timeout=30)
check_mesh_peer_connected(dev[1])
# Test connectivity 0->1 and 1->0
hwsim_utils.test_connectivity(dev[0], dev[1])
dev[0].request("SET sae_groups ")
dev[1].request("SET sae_groups ")
def test_wpas_mesh_ctrl(dev):
"""wpa_supplicant ctrl_iface mesh command error cases"""
if not mesh_supported(dev[0]):
return "skip"
if "FAIL" not in dev[0].request("MESH_GROUP_ADD 123"):
raise Exception("Unexpected MESH_GROUP_ADD success")
id = dev[0].add_network()
if "FAIL" not in dev[0].request("MESH_GROUP_ADD %d" % id):
raise Exception("Unexpected MESH_GROUP_ADD success")
dev[0].set_network(id, "mode", "5")
dev[0].set_network(id, "key_mgmt", "WPA-PSK")
if "FAIL" not in dev[0].request("MESH_GROUP_ADD %d" % id):
raise Exception("Unexpected MESH_GROUP_ADD success")
if "FAIL" not in dev[0].request("MESH_GROUP_REMOVE foo"):
raise Exception("Unexpected MESH_GROUP_REMOVE success")
def test_wpas_mesh_dynamic_interface(dev):
"""wpa_supplicant mesh with dynamic interface"""
if not mesh_supported(dev[0]):
return "skip"
mesh0 = None
mesh1 = None
try:
mesh0 = dev[0].request("MESH_INTERFACE_ADD ifname=mesh0")
if "FAIL" in mesh0:
raise Exception("MESH_INTERFACE_ADD failed")
mesh1 = dev[1].request("MESH_INTERFACE_ADD")
if "FAIL" in mesh1:
raise Exception("MESH_INTERFACE_ADD failed")
wpas0 = WpaSupplicant(ifname=mesh0)
wpas1 = WpaSupplicant(ifname=mesh1)
logger.info(mesh0 + " address " + wpas0.get_status_field("address"))
logger.info(mesh1 + " address " + wpas1.get_status_field("address"))
add_open_mesh_network(wpas0)
add_open_mesh_network(wpas1)
check_mesh_group_added(wpas0)
check_mesh_group_added(wpas1)
check_mesh_peer_connected(wpas0)
check_mesh_peer_connected(wpas1)
hwsim_utils.test_connectivity(wpas0, wpas1)
# Must not allow MESH_GROUP_REMOVE on dynamic interface
if "FAIL" not in wpas0.request("MESH_GROUP_REMOVE " + mesh0):
raise Exception("Invalid MESH_GROUP_REMOVE accepted")
if "FAIL" not in wpas1.request("MESH_GROUP_REMOVE " + mesh1):
raise Exception("Invalid MESH_GROUP_REMOVE accepted")
# Must not allow MESH_GROUP_REMOVE on another radio interface
if "FAIL" not in wpas0.request("MESH_GROUP_REMOVE " + mesh1):
raise Exception("Invalid MESH_GROUP_REMOVE accepted")
if "FAIL" not in wpas1.request("MESH_GROUP_REMOVE " + mesh0):
raise Exception("Invalid MESH_GROUP_REMOVE accepted")
wpas0.remove_ifname()
wpas1.remove_ifname()
if "OK" not in dev[0].request("MESH_GROUP_REMOVE " + mesh0):
raise Exception("MESH_GROUP_REMOVE failed")
if "OK" not in dev[1].request("MESH_GROUP_REMOVE " + mesh1):
raise Exception("MESH_GROUP_REMOVE failed")
if "FAIL" not in dev[0].request("MESH_GROUP_REMOVE " + mesh0):
raise Exception("Invalid MESH_GROUP_REMOVE accepted")
if "FAIL" not in dev[1].request("MESH_GROUP_REMOVE " + mesh1):
raise Exception("Invalid MESH_GROUP_REMOVE accepted")
logger.info("Make sure another dynamic group can be added")
mesh0 = dev[0].request("MESH_INTERFACE_ADD ifname=mesh0")
if "FAIL" in mesh0:
raise Exception("MESH_INTERFACE_ADD failed")
mesh1 = dev[1].request("MESH_INTERFACE_ADD")
if "FAIL" in mesh1:
raise Exception("MESH_INTERFACE_ADD failed")
wpas0 = WpaSupplicant(ifname=mesh0)
wpas1 = WpaSupplicant(ifname=mesh1)
logger.info(mesh0 + " address " + wpas0.get_status_field("address"))
logger.info(mesh1 + " address " + wpas1.get_status_field("address"))
add_open_mesh_network(wpas0)
add_open_mesh_network(wpas1)
check_mesh_group_added(wpas0)
check_mesh_group_added(wpas1)
check_mesh_peer_connected(wpas0)
check_mesh_peer_connected(wpas1)
hwsim_utils.test_connectivity(wpas0, wpas1)
finally:
if mesh0:
dev[0].request("MESH_GROUP_REMOVE " + mesh0)
if mesh1:
dev[1].request("MESH_GROUP_REMOVE " + mesh1)
def test_wpas_mesh_max_peering(dev, apdev):
"""Mesh max peering limit"""
if not mesh_supported(dev[0]):
return "skip"
try:
dev[0].request("SET max_peer_links 1")
# first, connect dev[0] and dev[1]
add_open_mesh_network(dev[0])
add_open_mesh_network(dev[1])
for i in range(2):
ev = dev[i].wait_event(["MESH-PEER-CONNECTED"])
if ev is None:
raise Exception("dev%d did not connect with any peer" % i)
# add dev[2] which will try to connect with both dev[0] and dev[1],
# but can complete connection only with dev[1]
add_open_mesh_network(dev[2])
for i in range(1, 3):
ev = dev[i].wait_event(["MESH-PEER-CONNECTED"])
if ev is None:
raise Exception("dev%d did not connect the second peer" % i)
ev = dev[0].wait_event(["MESH-PEER-CONNECTED"], timeout=1)
if ev is not None:
raise Exception("dev0 connection beyond max peering limit")
ev = dev[2].wait_event(["MESH-PEER-CONNECTED"], timeout=0.1)
if ev is not None:
raise Exception("dev2 reported unexpected peering: " + ev)
for i in range(3):
dev[i].mesh_group_remove()
check_mesh_group_removed(dev[i])
finally:
dev[0].request("SET max_peer_links 99")
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