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tests: Avoid unexpected roam in wnm_bss_tm

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It was possible for the BTM Request with no matching BSSIDs to cause
wpa_supplicant-initated roam to a better BSS (5 GHz band preferred) when
finding the second AP in a scan started by that BTM Request. This could
make the following step in the test case fail. Fix this by asking
another channel to be scanned to postpone discovery of the other AP.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2017-05-27 11:19:00 +03:00
parent 8171d70406
commit c01de21932
1 changed files with 1 additions and 1 deletions
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2
tests/hwsim/test_wnm.py
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@ -620,7 +620,7 @@ def test_wnm_bss_tm(dev, apdev):
dev[0].dump_monitor() dev[0].dump_monitor()
logger.info("Preferred Candidate List (no matching neighbor) without Disassociation Imminent") logger.info("Preferred Candidate List (no matching neighbor) without Disassociation Imminent")
if "OK" not in hapd.request("BSS_TM_REQ " + addr + " pref=1 neighbor=11:22:33:44:55:66,0x0000,81,3,7,0301ff neighbor=22:33:44:55:66:77,0x0000,1,36,7 neighbor=00:11:22:33:44:55,0x0000,81,4,7,03010a"): if "OK" not in hapd.request("BSS_TM_REQ " + addr + " pref=1 neighbor=11:22:33:44:55:66,0x0000,81,3,7,0301ff neighbor=22:33:44:55:66:77,0x0000,1,44,7 neighbor=00:11:22:33:44:55,0x0000,81,4,7,03010a"):
raise Exception("BSS_TM_REQ command failed") raise Exception("BSS_TM_REQ command failed")
ev = hapd.wait_event(['BSS-TM-RESP'], timeout=10) ev = hapd.wait_event(['BSS-TM-RESP'], timeout=10)
if ev is None: if ev is None: