DGNum/hostapd
6
0
Fork 0
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

tests: Wait for driver scan state to clear between tests

Browse source 
cfg80211/mac80211 seems to getting stuck with scans every now and then.
Check for this special state and delay return from reset() until the
driver has stopped the scan operation. This reduces likelihood of
failing multiple test cases in a row because of a single error.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-09-28 17:31:54 +03:00
parent a771c07dfc
commit 6ca3a98bc2
1 changed files with 42 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

42
tests/hwsim/wpasupplicant.py
View file

@ -10,6 +10,7 @@ import os
import time
import logging
import re
import subprocess
import wpaspy
logger = logging.getLogger(__name__)
@ -58,6 +59,32 @@ class WpaSupplicant:
self.request("P2P_SET per_sta_psk 0")
self.group_ifname = None
self.dump_monitor()
iter = 0
while iter < 60:
state = self.get_driver_status_field("scan_state")
if "SCAN_STARTED" in state or "SCAN_REQUESTED" in state:
logger.info(self.ifname + ": Waiting for scan operation to complete before continuing")
time.sleep(1)
else:
break
iter = iter + 1
if iter == 60:
logger.error(self.ifname + ": Driver scan state did not clear")
print "Trying to clear cfg80211/mac80211 scan state"
try:
cmd = ["sudo", "ifconfig", self.ifname, "down"]
subprocess.call(cmd)
except subprocess.CalledProcessError, e:
logger.info("ifconfig failed: " + str(e.returncode))
logger.info(e.output)
try:
cmd = ["sudo", "ifconfig", self.ifname, "up"]
subprocess.call(cmd)
except subprocess.CalledProcessError, e:
logger.info("ifconfig failed: " + str(e.returncode))
logger.info(e.output)
if not self.ping():
logger.info("No PING response from " + self.ifname + " after reset")
@ -153,6 +180,21 @@ class WpaSupplicant:
return vals[field]
return None
def get_driver_status(self):
res = self.request("STATUS-DRIVER")
lines = res.splitlines()
vals = dict()
for l in lines:
[name,value] = l.split('=', 1)
vals[name] = value
return vals
def get_driver_status_field(self, field):
vals = self.get_driver_status()
if field in vals:
return vals[field]
return None
def p2p_dev_addr(self):
return self.get_status_field("p2p_device_address")