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tests: Add a test of mesh RANN
This is a test for a RANN functionality defined in IEEE Std 802.11-2016 14.10.12 Root announcement (RANN) mechanism. Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
This commit is contained in:
Masashi Honma
Jouni Malinen
parent
0b287a2af5
commit
2011e99841
@ -4,9 +4,10 @@
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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
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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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@ -317,3 +318,147 @@ def _test_wmediumd_path_ttl(dev, ok):
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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(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 \
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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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