wpa_supplicant/examples/wpas-dbus-new.py

   1 #!/usr/bin/python
   2
   3 import dbus
   4 import sys, os
   5 import time
   6 import gobject
   7 from dbus.mainloop.glib import DBusGMainLoop
   8
   9 WPAS_DBUS_SERVICE = "fi.w1.wpa_supplicant1"
  10 WPAS_DBUS_INTERFACE = "fi.w1.wpa_supplicant1"
  11 WPAS_DBUS_OPATH = "/fi/w1/wpa_supplicant1"
  12
  13 WPAS_DBUS_INTERFACES_INTERFACE = "fi.w1.wpa_supplicant1.Interface"
  14 WPAS_DBUS_INTERFACES_OPATH = "/fi/w1/wpa_supplicant1/Interfaces"
  15 WPAS_DBUS_BSS_INTERFACE = "fi.w1.wpa_supplicant1.Interface.BSS"
  16
  17 def byte_array_to_string(s):
  18         import urllib
  19         r = ""
  20         for c in s:
  21                 if c >= 32 and c < 127:
  22                         r += "%c" % c
  23                 else:
  24                         r += urllib.quote(chr(c))
  25         return r
  26
  27 def list_interfaces(wpas_obj):
  28         ifaces = wpas_obj.Get(WPAS_DBUS_INTERFACE, 'Interfaces',
  29                               dbus_interface=dbus.PROPERTIES_IFACE)
  30         for path in ifaces:
  31                 if_obj = bus.get_object(WPAS_DBUS_SERVICE, path)
  32                 ifname = if_obj.Get(WPAS_DBUS_INTERFACES_INTERFACE, 'Ifname',
  33                               dbus_interface=dbus.PROPERTIES_IFACE)
  34                 print ifname
  35
  36 def propertiesChanged(properties):
  37         if properties.has_key("State"):
  38                 print "PropertiesChanged: State: %s" % (properties["State"])
  39
  40 def showBss(bss):
  41         net_obj = bus.get_object(WPAS_DBUS_SERVICE, bss)
  42         net = dbus.Interface(net_obj, WPAS_DBUS_BSS_INTERFACE)
  43
  44         # Convert the byte-array for SSID and BSSID to printable strings
  45         val = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'BSSID',
  46                           dbus_interface=dbus.PROPERTIES_IFACE)
  47         bssid = ""
  48         for item in val:
  49                 bssid = bssid + ":%02x" % item
  50         bssid = bssid[1:]
  51         val = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'SSID',
  52                           dbus_interface=dbus.PROPERTIES_IFACE)
  53         ssid = byte_array_to_string(val)
  54
  55         val = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'WPAIE',
  56                           dbus_interface=dbus.PROPERTIES_IFACE)
  57         wpa = "no"
  58         if val != None:
  59                 wpa = "yes"
  60         val = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'RSNIE',
  61                           dbus_interface=dbus.PROPERTIES_IFACE)
  62         wpa2 = "no"
  63         if val != None:
  64                 wpa2 = "yes"
  65         freq = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'Frequency',
  66                            dbus_interface=dbus.PROPERTIES_IFACE)
  67         signal = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'Signal',
  68                              dbus_interface=dbus.PROPERTIES_IFACE)
  69         val = net_obj.Get(WPAS_DBUS_BSS_INTERFACE, 'Rates',
  70                           dbus_interface=dbus.PROPERTIES_IFACE)
  71         if len(val) > 0:
  72                 maxrate = val[0] / 1000000
  73         else:
  74                 maxrate = 0
  75
  76         print "  %s  ::  ssid='%s'  wpa=%s  wpa2=%s  signal=%d  rate=%d  freq=%d" % (bssid, ssid, wpa, wpa2, signal, maxrate, freq)
  77
  78 def scanDone(success):
  79         gobject.MainLoop().quit()
  80         print "Scan done: success=%s" % success
  81
  82         res = if_obj.Get(WPAS_DBUS_INTERFACES_INTERFACE, 'BSSs',
  83                          dbus_interface=dbus.PROPERTIES_IFACE)
  84
  85         print "Scanned wireless networks:"
  86         for opath in res:
  87                 print opath
  88                 showBss(opath)
  89
  90 def bssAdded(bss, properties):
  91         print "BSS added: %s" % (bss)
  92         showBss(bss)
  93
  94 def bssRemoved(bss):
  95         print "BSS removed: %s" % (bss)
  96
  97 def main():
  98         dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
  99         global bus
 100         bus = dbus.SystemBus()
 101         wpas_obj = bus.get_object(WPAS_DBUS_SERVICE, WPAS_DBUS_OPATH)
 102
 103         if len(sys.argv) != 2:
 104                 list_interfaces(wpas_obj)
 105                 os._exit(1)
 106
 107         wpas = dbus.Interface(wpas_obj, WPAS_DBUS_INTERFACE)
 108         bus.add_signal_receiver(scanDone,
 109                                 dbus_interface=WPAS_DBUS_INTERFACES_INTERFACE,
 110                                 signal_name="ScanDone")
 111         bus.add_signal_receiver(bssAdded,
 112                                 dbus_interface=WPAS_DBUS_INTERFACES_INTERFACE,
 113                                 signal_name="BSSAdded")
 114         bus.add_signal_receiver(bssRemoved,
 115                                 dbus_interface=WPAS_DBUS_INTERFACES_INTERFACE,
 116                                 signal_name="BSSRemoved")
 117         bus.add_signal_receiver(propertiesChanged,
 118                                 dbus_interface=WPAS_DBUS_INTERFACES_INTERFACE,
 119                                 signal_name="PropertiesChanged")
 120
 121         ifname = sys.argv[1]
 122
 123         # See if wpa_supplicant already knows about this interface
 124         path = None
 125         try:
 126                 path = wpas.GetInterface(ifname)
 127         except dbus.DBusException, exc:
 128                 if not str(exc).startswith("fi.w1.wpa_supplicant1.InterfaceUnknown:"):
 129                         raise exc
 130                 try:
 131                         path = wpas.CreateInterface({'Ifname': ifname, 'Driver': 'test'})
 132                         time.sleep(1)
 133
 134                 except dbus.DBusException, exc:
 135                         if not str(exc).startswith("fi.w1.wpa_supplicant1.InterfaceExists:"):
 136                                 raise exc
 137
 138         global if_obj
 139         if_obj = bus.get_object(WPAS_DBUS_SERVICE, path)
 140         global iface
 141         iface = dbus.Interface(if_obj, WPAS_DBUS_INTERFACES_INTERFACE)
 142         iface.Scan({'Type': 'active'})
 143
 144         gobject.MainLoop().run()
 145
 146         wpas.RemoveInterface(dbus.ObjectPath(path))
 147
 148 if __name__ == "__main__":
 149         main()
 150