464 lines
16 KiB
Python
464 lines
16 KiB
Python
# wmediumd sanity checks
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# Copyright (c) 2015, Intel Deutschland GmbH
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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import tempfile, os, subprocess, errno, hwsim_utils, time
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from utils import HwsimSkip
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from wpasupplicant import WpaSupplicant
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from tshark import run_tshark
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from test_ap_open import _test_ap_open
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from test_wpas_mesh import check_mesh_support, check_mesh_group_added
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from test_wpas_mesh import check_mesh_peer_connected, add_open_mesh_network
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from test_wpas_mesh import check_mesh_group_removed
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class LocalVariables:
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revs = []
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CFG = """
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ifaces :
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{
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ids = ["%s", "%s" ]
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links = (
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(0, 1, 30)
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)
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}
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"""
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CFG2 = """
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ifaces :
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{
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ids = ["%s", "%s", "%s"]
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}
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model:
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{
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type = "prob"
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links = (
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(0, 1, 0.000000),
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(0, 2, 0.000000),
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(1, 2, 1.000000)
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)
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}
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"""
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CFG3 = """
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ifaces :
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{
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ids = ["%s", "%s", "%s", "%s", "%s" ]
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}
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model:
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{
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type = "prob"
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default_prob = 1.0
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links = (
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(0, 1, 0.000000),
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(1, 2, 0.000000),
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(2, 3, 0.000000),
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(3, 4, 0.000000)
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)
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}
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"""
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def get_wmediumd_version():
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if len(LocalVariables.revs) > 0:
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return LocalVariables.revs
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try:
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verstr = subprocess.check_output(['wmediumd', '-V'])
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except OSError as e:
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if e.errno == errno.ENOENT:
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raise HwsimSkip('wmediumd not available')
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raise
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vernum = verstr.split(' ')[1][1:]
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LocalVariables.revs = vernum.split('.')
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for i in range(0, len(LocalVariables.revs)):
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LocalVariables.revs[i] = int(LocalVariables.revs[i])
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while len(LocalVariables.revs) < 3:
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LocalVariables.revs += [0]
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return LocalVariables.revs
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def require_wmediumd_version(major, minor, patch):
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revs = get_wmediumd_version()
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if revs[0] < major or revs[1] < minor or revs[2] < patch:
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raise HwsimSkip('wmediumd v%s.%s.%s is too old for this test' %
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(revs[0], revs[1], revs[2]))
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def output_wmediumd_log(p, params, data):
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log_file = open(os.path.abspath(os.path.join(params['logdir'],
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'wmediumd.log')), 'a')
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log_file.write(data)
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log_file.close()
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def start_wmediumd(fn, params):
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try:
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p = subprocess.Popen(['wmediumd', '-c', fn],
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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except OSError as e:
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if e.errno == errno.ENOENT:
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raise HwsimSkip('wmediumd not available')
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raise
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logs = ''
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while True:
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line = p.stdout.readline()
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if not line:
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output_wmediumd_log(p, params, logs)
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raise Exception('wmediumd was terminated unexpectedly')
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if line.find('REGISTER SENT!') > -1:
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break
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logs += line
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return p
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def stop_wmediumd(p, params):
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p.terminate()
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p.wait()
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stdoutdata, stderrdata = p.communicate()
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output_wmediumd_log(p, params, stdoutdata)
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def test_wmediumd_simple(dev, apdev, params):
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"""test a simple wmediumd configuration"""
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fd, fn = tempfile.mkstemp()
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try:
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f = os.fdopen(fd, 'w')
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f.write(CFG % (apdev[0]['bssid'], dev[0].own_addr()))
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f.close()
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p = start_wmediumd(fn, params)
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try:
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_test_ap_open(dev, apdev)
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finally:
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stop_wmediumd(p, params)
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# test that releasing hwsim works correctly
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_test_ap_open(dev, apdev)
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finally:
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os.unlink(fn)
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def test_wmediumd_path_simple(dev, apdev, params):
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"""test a mesh path"""
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# 0 and 1 is connected
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# 0 and 2 is connected
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# 1 and 2 is not connected
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# 1 --- 0 --- 2
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# | |
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# +-----X-----+
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# This tests if 1 and 2 can communicate each other via 0.
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require_wmediumd_version(0, 3, 1)
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fd, fn = tempfile.mkstemp()
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try:
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f = os.fdopen(fd, 'w')
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f.write(CFG2 % (dev[0].own_addr(), dev[1].own_addr(),
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dev[2].own_addr()))
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f.close()
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p = start_wmediumd(fn, params)
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try:
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_test_wmediumd_path_simple(dev, apdev)
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finally:
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stop_wmediumd(p, params)
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finally:
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os.unlink(fn)
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def _test_wmediumd_path_simple(dev, apdev):
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for i in range(0, 3):
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check_mesh_support(dev[i])
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add_open_mesh_network(dev[i], freq="2462", basic_rates="60 120 240")
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# Check for mesh joined
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for i in range(0, 3):
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check_mesh_group_added(dev[i])
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state = dev[i].get_status_field("wpa_state")
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if state != "COMPLETED":
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raise Exception("Unexpected wpa_state on dev" + str(i) + ": " + state)
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mode = dev[i].get_status_field("mode")
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if mode != "mesh":
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raise Exception("Unexpected mode: " + mode)
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# Check for peer connected
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check_mesh_peer_connected(dev[0])
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check_mesh_peer_connected(dev[0])
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check_mesh_peer_connected(dev[1])
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check_mesh_peer_connected(dev[2])
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# Test connectivity 1->2 and 2->1
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hwsim_utils.test_connectivity(dev[1], dev[2])
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# Check mpath table on 0
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res, data = dev[0].cmd_execute(['iw', dev[0].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev0")
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if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
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data.find(dev[2].own_addr() + ' ' + dev[2].own_addr()) == -1:
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raise Exception("mpath not found on dev0:\n" + data)
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if data.find(dev[0].own_addr()) > -1:
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raise Exception("invalid mpath found on dev0:\n" + data)
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# Check mpath table on 1
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res, data = dev[1].cmd_execute(['iw', dev[1].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev1")
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if data.find(dev[0].own_addr() + ' ' + dev[0].own_addr()) == -1 or \
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data.find(dev[2].own_addr() + ' ' + dev[0].own_addr()) == -1:
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raise Exception("mpath not found on dev1:\n" + data)
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if data.find(dev[2].own_addr() + ' ' + dev[2].own_addr()) > -1 or \
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data.find(dev[1].own_addr()) > -1:
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raise Exception("invalid mpath found on dev1:\n" + data)
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# Check mpath table on 2
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res, data = dev[2].cmd_execute(['iw', dev[2].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev2")
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if data.find(dev[0].own_addr() + ' ' + dev[0].own_addr()) == -1 or \
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data.find(dev[1].own_addr() + ' ' + dev[0].own_addr()) == -1:
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raise Exception("mpath not found on dev2:\n" + data)
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if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) > -1 or \
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data.find(dev[2].own_addr()) > -1:
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raise Exception("invalid mpath found on dev2:\n" + data)
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# remove mesh groups
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for i in range(0, 3):
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dev[i].mesh_group_remove()
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check_mesh_group_removed(dev[i])
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dev[i].dump_monitor()
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def test_wmediumd_path_ttl(dev, apdev, params):
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"""Mesh path request TTL"""
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# 0 --- 1 --- 2 --- 3 --- 4
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# Test the TTL of mesh path request.
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# If the TTL is shorter than path, the mesh path request should be dropped.
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require_wmediumd_version(0, 3, 1)
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local_dev = []
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for i in range(0, 3):
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local_dev.append(dev[i])
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for i in range(5, 7):
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wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
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wpas.interface_add("wlan" + str(i))
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check_mesh_support(wpas)
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temp_dev = wpas.request("MESH_INTERFACE_ADD ifname=mesh" + str(i))
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if "FAIL" in temp_dev:
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raise Exception("MESH_INTERFACE_ADD failed")
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local_dev.append(WpaSupplicant(ifname=temp_dev))
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fd, fn = tempfile.mkstemp()
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try:
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f = os.fdopen(fd, 'w')
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f.write(CFG3 % (local_dev[0].own_addr(), local_dev[1].own_addr(),
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local_dev[2].own_addr(), local_dev[3].own_addr(),
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local_dev[4].own_addr()))
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f.close()
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p = start_wmediumd(fn, params)
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try:
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_test_wmediumd_path_ttl(local_dev, True)
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_test_wmediumd_path_ttl(local_dev, False)
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finally:
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stop_wmediumd(p, params)
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finally:
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os.unlink(fn)
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for i in range(5, 7):
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wpas.interface_remove("wlan" + str(i))
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def _test_wmediumd_path_ttl(dev, ok):
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for i in range(0, 5):
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check_mesh_support(dev[i])
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add_open_mesh_network(dev[i], freq="2462", basic_rates="60 120 240")
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# Check for mesh joined
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for i in range(0, 5):
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check_mesh_group_added(dev[i])
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state = dev[i].get_status_field("wpa_state")
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if state != "COMPLETED":
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raise Exception("Unexpected wpa_state on dev" + str(i) + ": " + state)
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mode = dev[i].get_status_field("mode")
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if mode != "mesh":
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raise Exception("Unexpected mode: " + mode)
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# set mesh path request ttl
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subprocess.check_call([ "iw", "dev", dev[0].ifname, "set", "mesh_param",
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"mesh_element_ttl=" + ("4" if ok else "3") ])
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# Check for peer connected
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for i in range(0, 5):
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check_mesh_peer_connected(dev[i])
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for i in range(1, 4):
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check_mesh_peer_connected(dev[i])
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# Test connectivity 0->4 and 0->4
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hwsim_utils.test_connectivity(dev[0], dev[4], success_expected=ok)
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# Check mpath table on 0
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res, data = dev[0].cmd_execute(['iw', dev[0].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev0")
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if ok:
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if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
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data.find(dev[4].own_addr() + ' ' + dev[1].own_addr()) == -1:
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raise Exception("mpath not found on dev0:\n" + data)
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else:
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if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
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data.find(dev[4].own_addr() + ' 00:00:00:00:00:00') == -1:
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raise Exception("mpath not found on dev0:\n" + data)
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if data.find(dev[0].own_addr()) > -1 or \
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data.find(dev[2].own_addr()) > -1 or \
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data.find(dev[3].own_addr()) > -1:
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raise Exception("invalid mpath found on dev0:\n" + data)
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# remove mesh groups
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for i in range(0, 3):
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dev[i].mesh_group_remove()
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check_mesh_group_removed(dev[i])
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dev[i].dump_monitor()
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def test_wmediumd_path_rann(dev, apdev, params):
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"""Mesh path with RANN"""
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# 0 and 1 is connected
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# 0 and 2 is connected
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# 1 and 2 is not connected
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# 2 is mesh root and RANN enabled
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# 1 --- 0 --- 2
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# | |
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# +-----X-----+
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# This tests if 1 and 2 can communicate each other via 0.
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require_wmediumd_version(0, 3, 1)
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fd, fn = tempfile.mkstemp()
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try:
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f = os.fdopen(fd, 'w')
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f.write(CFG2 % (dev[0].own_addr(), dev[1].own_addr(),
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dev[2].own_addr()))
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f.close()
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p = start_wmediumd(fn, params)
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try:
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_test_wmediumd_path_rann(dev, apdev)
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finally:
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stop_wmediumd(p, params)
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finally:
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os.unlink(fn)
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capfile = os.path.join(params['logdir'], "hwsim0.pcapng")
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# check Root STA address in root announcement element
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filt = "wlan.fc.type_subtype == 0x000d && " + \
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"wlan_mgt.fixed.mesh_action == 0x01 && " + \
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"wlan_mgt.tag.number == 126"
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out = run_tshark(capfile, filt, [ "wlan.rann.root_sta" ])
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if out is None:
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raise Exception("No captured data found\n")
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if out.find(dev[2].own_addr()) == -1 or \
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out.find(dev[0].own_addr()) > -1 or \
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out.find(dev[1].own_addr()) > -1:
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raise Exception("RANN should be sent by dev2 only:\n" + out)
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# check RANN interval is in range
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filt = "wlan.sa == 02:00:00:00:02:00 && " + \
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"wlan.fc.type_subtype == 0x000d && " + \
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"wlan_mgt.fixed.mesh_action == 0x01 && " + \
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"wlan_mgt.tag.number == 126"
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out = run_tshark(capfile, filt, [ "frame.time_relative" ])
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if out is None:
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raise Exception("No captured data found\n")
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lines = out.splitlines()
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prev = float(lines[len(lines) - 1])
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for i in reversed(list(range(1, len(lines) - 1))):
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now = float(lines[i])
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if prev - now < 1.0 or 3.0 < prev - now:
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raise Exception("RANN interval " + str(prev - now) +
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"(sec) should be close to 2.0(sec)\n")
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prev = now
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# check no one uses broadcast path request
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filt = "wlan.da == ff:ff:ff:ff:ff:ff && " + \
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"wlan.fc.type_subtype == 0x000d && " + \
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"wlan_mgt.fixed.mesh_action == 0x01 && " + \
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"wlan_mgt.tag.number == 130"
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out = run_tshark(capfile, filt, [ "wlan.sa", "wlan.da" ])
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if out is None:
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raise Exception("No captured data found\n")
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if len(out) > 0:
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raise Exception("invalid broadcast path requests\n" + out)
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def _test_wmediumd_path_rann(dev, apdev):
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for i in range(0, 3):
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check_mesh_support(dev[i])
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add_open_mesh_network(dev[i], freq="2462", basic_rates="60 120 240")
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# Check for mesh joined
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for i in range(0, 3):
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check_mesh_group_added(dev[i])
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state = dev[i].get_status_field("wpa_state")
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if state != "COMPLETED":
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raise Exception("Unexpected wpa_state on dev" + str(i) + ": " + state)
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mode = dev[i].get_status_field("mode")
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if mode != "mesh":
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raise Exception("Unexpected mode: " + mode)
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# set node 2 as RANN supported root
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subprocess.check_call(["iw", "dev", dev[0].ifname, "set", "mesh_param",
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"mesh_hwmp_rootmode=0"])
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subprocess.check_call(["iw", "dev", dev[1].ifname, "set", "mesh_param",
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"mesh_hwmp_rootmode=0"])
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subprocess.check_call(["iw", "dev", dev[2].ifname, "set", "mesh_param",
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"mesh_hwmp_rootmode=4"])
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subprocess.check_call(["iw", "dev", dev[2].ifname, "set", "mesh_param",
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"mesh_hwmp_rann_interval=2000"])
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# Check for peer connected
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check_mesh_peer_connected(dev[0])
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check_mesh_peer_connected(dev[0])
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check_mesh_peer_connected(dev[1])
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check_mesh_peer_connected(dev[2])
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# Wait for RANN frame
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time.sleep(10)
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# Test connectivity 1->2 and 2->1
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hwsim_utils.test_connectivity(dev[1], dev[2])
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# Check mpath table on 0
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res, data = dev[0].cmd_execute(['iw', dev[0].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev0")
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if data.find(dev[1].own_addr() + ' ' + dev[1].own_addr()) == -1 or \
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data.find(dev[2].own_addr() + ' ' + dev[2].own_addr()) == -1:
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raise Exception("mpath not found on dev0:\n" + data)
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if data.find(dev[0].own_addr()) > -1:
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raise Exception("invalid mpath found on dev0:\n" + data)
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# Check mpath table on 1
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res, data = dev[1].cmd_execute(['iw', dev[1].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev1")
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if data.find(dev[0].own_addr() + ' ' + dev[0].own_addr()) == -1 or \
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data.find(dev[2].own_addr() + ' ' + dev[0].own_addr()) == -1:
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raise Exception("mpath not found on dev1:\n" + data)
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if data.find(dev[2].own_addr() + ' ' + dev[2].own_addr()) > -1 or \
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data.find(dev[1].own_addr()) > -1:
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raise Exception("invalid mpath found on dev1:\n" + data)
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# Check mpath table on 2
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res, data = dev[2].cmd_execute(['iw', dev[2].ifname, 'mpath', 'dump'])
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if res != 0:
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raise Exception("iw command failed on dev2")
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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()
|