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tests: Detect BSSID mismatch in test_ibss_rsn

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It looks like mac80211 does not always manage to join the same IBSS and
this can result in test_ibss_rsn failures. Detect this case and try to
get the IBSSes to merge by running a scan prior to continuing with the
test case.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-08-27 03:11:02 +03:00
parent 6fb7b58fe4
commit dcfb4d652a
1 changed files with 17 additions and 3 deletions
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20
tests/hwsim/test_ibss.py
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@ -9,6 +9,7 @@
import logging
logger = logging.getLogger(__name__)
import time
import re
import hwsim_utils
@ -21,6 +22,11 @@ def wait_ibss_connection(dev):
ev = dev.wait_event(["CTRL-EVENT-CONNECTED"], timeout=20)
if ev is None:
raise Exception("Connection to the IBSS timed out")
exp = r'<.>(CTRL-EVENT-CONNECTED) - Connection to ([0-9a-f:]*) completed.*'
s = re.split(exp, ev)
if len(s) < 3:
return None
return s[2]
def wait_4way_handshake(dev1, dev2):
logger.info(dev1.ifname + " waiting for 4-way handshake completion with " + dev2.ifname + " " + dev2.p2p_interface_addr())
@ -69,19 +75,27 @@ def test_ibss_rsn(dev):
logger.info("Start IBSS on the first STA")
id = add_ibss_rsn(dev[0], ssid)
connect_ibss_cmd(dev[0], id)
wait_ibss_connection(dev[0])
bssid0 = wait_ibss_connection(dev[0])
logger.info("Join two STAs to the IBSS")
id = add_ibss_rsn(dev[1], ssid)
connect_ibss_cmd(dev[1], id)
wait_ibss_connection(dev[1])
bssid1 = wait_ibss_connection(dev[1])
if bssid0 != bssid1:
logger.info("STA0 BSSID " + bssid0 + " differs from STA1 BSSID " + bssid1)
# try to merge with a scan
dev[1].scan()
wait_4way_handshake(dev[0], dev[1])
wait_4way_handshake(dev[1], dev[0])
id = add_ibss_rsn(dev[2], ssid)
connect_ibss_cmd(dev[2], id)
wait_ibss_connection(dev[2])
bssid2 = wait_ibss_connection(dev[2])
if bssid0 != bssid2:
logger.info("STA0 BSSID " + bssid0 + " differs from STA2 BSSID " + bssid2)
# try to merge with a scan
dev[2].scan()
wait_4way_handshake(dev[0], dev[2])
wait_4way_handshake2(dev[2], dev[0], dev[1])