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New UPI implementation for WiFi network managing #1

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122 changes: 116 additions & 6 deletions wishful_module_wifi/module_wifi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,15 +22,17 @@ def __init__(self):
super(WifiModule, self).__init__()
self.log = logging.getLogger('wifi_module.main')
self.interface = "wlan0"
self.wlan_interface = "wlan0"
self.channel = 1
self.power = 1
self.modulation_rate = 1

@wishful_module.bind_function(upis.radio.set_power)
def set_power(self, power_dBm):

self.log.info('setting channel(): %s->%s' % (str(self.interface), str(power_dBm)))
self.log.info('setting set_power(): %s->%s' % (str(self.wlan_interface), str(power_dBm)))

cmd_str = 'iw ' + self.interface + ' set txpower fixed ' + str(power_dBm)
cmd_str = 'iw dev ' + self.wlan_interface + ' set txpower fixed ' + str(power_dBm) + 'dbm'

try:
[rcode, sout, serr] = self.run_command(cmd_str)
Expand Down Expand Up @@ -70,6 +72,83 @@ def get_channel(self):
self.log.debug("WIFI Module gets channel of interface: {}".format(self.interface))
return self.channel

@wishful_module.bind_function(upis.radio.set_modulation_rate)
def set_modulation_rate(self, rate_Mbps):

self.log.info('setting modulation rate(): %s->%s' % (str(self.wlan_interface), str(rate_Mbps)))

cmd_str = 'iwconfig ' + self.wlan_interface + ' rate ' + str(rate_Mbps) + 'M' + ' fixed'

try:
[rcode, sout, serr] = self.run_command(cmd_str)
except Exception as e:
fname = inspect.currentframe().f_code.co_name
self.log.fatal("An error occurred in %s: %s" % (fname, e))
raise exceptions.UPIFunctionExecutionFailedException(func_name=fname, err_msg=str(e))

self.modulation_rate = rate_Mbps

@wishful_module.bind_function(upis.wifi.net.set_hostapd_conf)
def set_hostapd_conf(self, iface, file_path, channel, essid):
self.log.debug("WIFI Module set hostapd configuratin file: {}".format(self.wlan_interface))

from hostapdconf.parser import HostapdConf
from hostapdconf import helpers as ha
#read start configuration file
conf = HostapdConf(file_path)
#set wireless interface
ha.set_iface(conf, iface)
#set wireless channel
ha.set_channel(conf, channel)
#set ESSID
ha.set_ssid(conf, essid)
#write new configuraiton
conf.write()

return True

@wishful_module.bind_function(upis.wifi.net.start_hostapd)
def start_hostapd(self, file_path):
self.log.info('start hostapd()')

cmd_str = 'sudo hostapd -B ' + str(file_path)
try:
[rcode, sout, serr] = self.run_command(cmd_str)
#sp = subprocess.Popen(cmd_str, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
#out, err = sp.communicate()
except Exception as e:
fname = inspect.currentframe().f_code.co_name
self.log.fatal("An error occurred in %s: %s" % (fname, e))
raise exceptions.UPIFunctionExecutionFailedException(func_name=fname, err_msg=str(e))

self.log.info('start hostapd() completed')

return True

@wishful_module.bind_function(upis.wifi.net.stop_hostapd)
def stop_hostapd(self):
self.log.info('stop hostapd()')

cmd_str = 'ps aux | grep hostapd | wc -l'
try:
[rcode, sout, serr] = self.run_command(cmd_str)
except Exception as e:
fname = inspect.currentframe().f_code.co_name
self.log.fatal("An error occurred in %s: %s" % (fname, e))
raise exceptions.UPIFunctionExecutionFailedException(func_name=fname, err_msg=str(e))

if (int(sout)>2):
cmd_str = 'sudo killall -9 hostapd'
try:
[rcode, sout, serr] = self.run_command(cmd_str)
except Exception as e:
fname = inspect.currentframe().f_code.co_name
self.log.fatal("An error occurred in %s: %s" % (fname, e))
raise exceptions.UPIFunctionExecutionFailedException(func_name=fname, err_msg=str(e))

self.log.info('stop hostapd() completed')

return True

@wishful_module.bind_function(upis.wifi.net.get_info_of_connected_devices)
def get_info_of_connected_devices(self):
Expand Down Expand Up @@ -197,12 +276,43 @@ def get_tdls_peer_connected_device(self):


@wishful_module.bind_function(upis.wifi.net.connect_to_network)
def connect_to_network(self, iface, **kwargs):
def connect_to_network(self, iface, ssid):

self.log.info('connecting via to AP with SSID: %s->%s' % (str(self.wlan_interface), str(ssid)))

cmd_str = 'sudo iwconfig ' + str(iface) + ' essid ' + str(ssid)

try:
[rcode, sout, serr] = self.run_command(cmd_str)
except Exception as e:
fname = inspect.currentframe().f_code.co_name
self.log.fatal("An error occurred in %s: %s" % (fname, e))
raise exceptions.UPIFunctionExecutionFailedException(func_name=fname, err_msg=str(e))

return True

@wishful_module.bind_function(upis.wifi.net.network_dump)
def network_dump(self, iface):

self.log.info('dump_network on interface %s' % (str(iface)))

cmd_str = 'sudo iw dev ' + str(iface) + ' link'

try:
[rcode, sout, serr] = self.run_command(cmd_str)
except Exception as e:
fname = inspect.currentframe().f_code.co_name
self.log.fatal("An error occurred in %s: %s" % (fname, e))
raise exceptions.UPIFunctionExecutionFailedException(func_name=fname, err_msg=str(e))

return sout

@wishful_module.bind_function(upis.net.set_ip_address)
def set_ip_address(self, iface, ip_address):

ssid = kwargs.get('ssid')
self.log.info('connecting via to AP with SSID: %s->%s' % (str(iface), str(ssid)))
self.log.info('setting ip address(): %s->%s' % (str(self.wlan_interface), str(ip_address)))

cmd_str = 'sudo iwconfig ' + iface + ' essid ' + str(ssid)
cmd_str = 'sudo ifconfig ' + str(iface) + ' ' + str(ip_address)

try:
[rcode, sout, serr] = self.run_command(cmd_str)
Expand Down