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authorJouni Malinen <jouni@qca.qualcomm.com>2014-10-27 22:24:11 (GMT)
committerJouni Malinen <j@w1.fi>2014-10-27 22:43:58 (GMT)
commit5e29a9007946fe9309ffb9c4eff673f95f82af08 (patch)
tree7453007853a4b43228fc2f676ec1948d7669bdc1
parenta7f5271d52e7aabf6c6aee54da2fdcb65df89cdc (diff)
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tests: Scan result update changing last_scan_res and connect_work
This verifies that last_scan_res and connect work pointers to BSS entries get updated when scan result update ends up removing or reallocating a BSS entry. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
-rw-r--r--tests/hwsim/test_scan.py87
1 files changed, 87 insertions, 0 deletions
diff --git a/tests/hwsim/test_scan.py b/tests/hwsim/test_scan.py
index bb6edcc..c99309f 100644
--- a/tests/hwsim/test_scan.py
+++ b/tests/hwsim/test_scan.py
@@ -11,6 +11,7 @@ import os
import subprocess
import hostapd
+from wpasupplicant import WpaSupplicant
def check_scan(dev, params, other_started=False):
if not other_started:
@@ -322,3 +323,89 @@ def test_scan_hidden(dev, apdev):
check_scan(dev[0], "scan_id=%d,%d,%d freq=2412 use_id=1" % (id1, id2, id3))
if "test-scan" not in dev[0].request("SCAN_RESULTS"):
raise Exception("BSS not found in scan")
+
+def test_scan_and_bss_entry_removed(dev, apdev):
+ """Last scan result and connect work processing on BSS entry update"""
+ hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": "open",
+ "eap_server": "1",
+ "wps_state": "2" })
+ bssid = apdev[0]['bssid']
+
+ wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
+ wpas.interface_add("wlan5", drv_params="force_connect_cmd=1")
+
+ # Add a BSS entry
+ dev[0].scan_for_bss(bssid, freq="2412")
+ wpas.scan_for_bss(bssid, freq="2412")
+
+ # Start a connect radio work with a blocking entry preventing this from
+ # proceeding; this stores a pointer to the selected BSS entry.
+ id = dev[0].request("RADIO_WORK add block-work")
+ w_id = wpas.request("RADIO_WORK add block-work")
+ dev[0].wait_event(["EXT-RADIO-WORK-START"], timeout=1)
+ wpas.wait_event(["EXT-RADIO-WORK-START"], timeout=1)
+ nid = dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
+ wait_connect=False)
+ w_nid = wpas.connect("open", key_mgmt="NONE", scan_freq="2412",
+ wait_connect=False)
+ time.sleep(0.1)
+
+ # Remove the BSS entry
+ dev[0].request("BSS_FLUSH 0")
+ wpas.request("BSS_FLUSH 0")
+
+ # Allow the connect radio work to continue. The bss entry stored in the
+ # pending connect work is now stale. This will result in the connection
+ # attempt failing since the BSS entry does not exist.
+ dev[0].request("RADIO_WORK done " + id)
+ wpas.request("RADIO_WORK done " + w_id)
+
+ ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=1)
+ if ev is not None:
+ raise Exception("Unexpected connection")
+ dev[0].remove_network(nid)
+ ev = wpas.wait_event(["CTRL-EVENT-CONNECTED"], timeout=1)
+ if ev is not None:
+ raise Exception("Unexpected connection")
+ wpas.remove_network(w_nid)
+ time.sleep(0.5)
+ dev[0].request("BSS_FLUSH 0")
+ wpas.request("BSS_FLUSH 0")
+
+ # Add a BSS entry
+ dev[0].scan_for_bss(bssid, freq="2412")
+ wpas.scan_for_bss(bssid, freq="2412")
+
+ # Start a connect radio work with a blocking entry preventing this from
+ # proceeding; this stores a pointer to the selected BSS entry.
+ id = dev[0].request("RADIO_WORK add block-work")
+ w_id = wpas.request("RADIO_WORK add block-work")
+ dev[0].wait_event(["EXT-RADIO-WORK-START"], timeout=1)
+ wpas.wait_event(["EXT-RADIO-WORK-START"], timeout=1)
+
+ # Schedule a connection based on the current BSS entry.
+ dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
+ wait_connect=False)
+ wpas.connect("open", key_mgmt="NONE", scan_freq="2412",
+ wait_connect=False)
+
+ # Update scan results with results that have longer set of IEs so that new
+ # memory needs to be allocated for the BSS entry.
+ hapd.request("WPS_PBC")
+ time.sleep(0.1)
+ subprocess.call(['iw', dev[0].ifname, 'scan', 'trigger', 'freq', '2412'])
+ subprocess.call(['iw', wpas.ifname, 'scan', 'trigger', 'freq', '2412'])
+ time.sleep(0.1)
+
+ # Allow the connect radio work to continue. The bss entry stored in the
+ # pending connect work becomes stale during the scan and it must have been
+ # updated for the connection to work.
+ dev[0].request("RADIO_WORK done " + id)
+ wpas.request("RADIO_WORK done " + w_id)
+
+ ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=15)
+ if ev is None:
+ raise Exception("No connection (sme-connect)")
+ ev = wpas.wait_event(["CTRL-EVENT-CONNECTED"], timeout=15)
+ if ev is None:
+ raise Exception("No connection (connect)")