AP scan on correct wifi interfaces when dumping logs.

server/site_wlan_connect.py

 import dbus, dbus.mainloop.glib, gobject, logging, re, sys, time, subprocess
 
 ssid           = sys.argv[1]
 security       = sys.argv[2]
 psk            = sys.argv[3]
 assoc_timeout  = float(sys.argv[4])
 config_timeout = float(sys.argv[5])
 reset_timeout  = float(sys.argv[6]) if len(sys.argv) > 6 else assoc_timeout
 
 bus_loop = dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
@@ skipping 141 matching lines @@
             msgs = open(logfile)
             msgs.seek(0, 2)
             logs.append({ 'name': logfile, 'file': msgs })
         except Exception, e:
             # If we cannot open the file, this is not necessarily an error
             pass
 
     return logs
 
 
+# Returns the list of the wifi interfaces (e.g. "wlan0") known to flimflam
+def GetWifiInterfaces():
+    interfaces = []
+    device_paths = manager.GetProperties().get("Devices", None)
+    for device_path in device_paths:
+        device = dbus.Interface(
+            bus.get_object("org.chromium.flimflam", device_path),
+            "org.chromium.flimflam.Device")
+        props = device.GetProperties()
+        type = props.get("Type", None)
+        interface = props.get("Interface", None)
+        if type == "wifi":
+            interfaces.append(interface)
+    return interfaces
+
 def DumpLogs(logs):
     for log in logs:
         print>>sys.stderr, "Content of %s during our run:" % log['name']
         print>>sys.stderr, "  )))  ".join(log['file'].readlines())
 
-    print>>sys.stderr, "iw dev wlan0 scan output: %s" % \
-        subprocess.Popen(["iw", "dev", "wlan0", "scan"],
-                         stdout=subprocess.PIPE).communicate()[0]
+    for interface in GetWifiInterfaces():
+        print>>sys.stderr, "iw dev %s scan output: %s" % \
+            ( interface,
+              subprocess.Popen(["iw", "dev", interface, "scan"],
+                               stdout=subprocess.PIPE).communicate()[0])
 
 def ErrExit(code):
     try:
         service.Disconnect()
     except:
         pass
     DumpLogs(logs)
     sys.exit(code)
 
 logs = OpenLogs('/var/log/messages', '/var/log/hostap.log')
@@ skipping 44 matching lines @@
         print "TIMEOUT(config): ssid %s assoc %3.1f config %3.1f secs" \
             %(ssid, assoc_time, config_time)
         ErrExit(6)
 
 print "OK %3.1f %3.1f %s (assoc and config times in sec, quirks)" \
     %(assoc_time, config_time, str(connect_quirks.keys()))
 
 if connect_quirks:
     DumpLogs(logs)
 sys.exit(0)