mirror of
https://github.com/gryf/wicd.git
synced 2025-12-21 21:38:06 +01:00
d64850dfd3
The output of dhclient is now parsed by wicd and used to determine why the connection failed. All the wpa_supplicant conf files will now generate a ctrl_interface, so that they can be accessed by wpa_cli. wpa_cli now is used by wicd to attempt to determine is wpa_supplicant authentication was successful. This is still experimental, and might have to be tweaked to work properly. If wicd.py is started and the daemon isn't present, it will autolaunch it by calling launchdaemon.sh, instead of asking the user to start the daemon manually. Cleaned up some comments, formatting, etc. Probably a couple of other little bug fixes I'm forgetting.
752 lines
25 KiB
Python
752 lines
25 KiB
Python
#!/usr/bin/env python
|
|
""" Network interface control tools for wicd.
|
|
|
|
This module implements functions to control and obtain information from
|
|
network interfaces.
|
|
|
|
def SetDNS() -- Set the DNS servers of the system.
|
|
def GetWirelessInterfaces() -- Get the wireless interfaces available.
|
|
class Interface() -- Control a network interface.
|
|
class WiredInterface() -- Control a wired network interface.
|
|
class WirelessInterface() -- Control a wireless network interface.
|
|
|
|
"""
|
|
|
|
#
|
|
# Copyright (C) 2007 Adam Blackburn
|
|
# Copyright (C) 2007 Dan O'Reilly
|
|
# Copyright (C) 2007 Byron Hillis
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License Version 2 as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
import misc
|
|
import re
|
|
import wpath
|
|
import time
|
|
|
|
# Compile the regex patterns that will be used to search the output of iwlist
|
|
# scan for info these are well tested, should work on most cards
|
|
essid_pattern = re.compile('.*ESSID:"(.*?)"\n', re.I | re.M | re.S)
|
|
ap_mac_pattern = re.compile('.*Address: (.*?)\n', re.I | re.M | re.S)
|
|
channel_pattern = re.compile('.*Channel:? ?(\d\d?)', re.I | re.M | re.S)
|
|
strength_pattern = re.compile('.*Quality:?=? ?(\d+)\s*/?\s*(\d*)', re.I | re.M | re.S)
|
|
# These next two look a lot a like, altstrength is for Signal level = xx/100,
|
|
# which is just an alternate way of displaying link quality, signaldbm is
|
|
# for displaying actual signal strength (-xx dBm).
|
|
altstrength_pattern = re.compile('.*Signal level:?=? ?(\d\d*)', re.I | re.M | re.S)
|
|
signaldbm_pattern = re.compile('.*Signal level:?=? ?(-\d\d*)', re.I | re.M | re.S)
|
|
mode_pattern = re.compile('.*Mode:(.*?)\n', re.I | re.M | re.S)
|
|
freq_pattern = re.compile('.*Frequency:(.*?)\n', re.I | re.M | re.S)
|
|
ip_pattern = re.compile(r'inet [Aa]d?dr[^.]*:([^.]*\.[^.]*\.[^.]*\.[0-9]*)',re.S)
|
|
|
|
wep_pattern = re.compile('.*Encryption key:(.*?)\n', re.I | re.M | re.S)
|
|
altwpa_pattern = re.compile('(wpa_ie)', re.I | re.M | re.S)
|
|
wpa1_pattern = re.compile('(WPA Version 1)', re.I | re.M | re.S)
|
|
wpa2_pattern = re.compile('(WPA2)', re.I | re.M | re.S)
|
|
|
|
# Patterns for wpa_cli output
|
|
auth_pattern = re.compile('.*wpa_state=(.*?)\n', re.I | re.M | re.S)
|
|
|
|
RALINK_DRIVER = 'ralink legacy'
|
|
|
|
|
|
def SetDNS(dns1=None, dns2=None, dns3=None):
|
|
""" Set the DNS of the system to the specified DNS servers.
|
|
|
|
Opens up resolv.conf and writes in the nameservers.
|
|
|
|
Keyword arguments:
|
|
dns1 -- IP address of DNS server 1
|
|
dns2 -- IP address of DNS server 1
|
|
dns3 -- IP address of DNS server 1
|
|
|
|
"""
|
|
dns_ips = [dns1, dns2, dns3]
|
|
|
|
resolv = open("/etc/resolv.conf","w")
|
|
for dns in dns_ips:
|
|
if dns:
|
|
print 'Setting DNS : ' + dns
|
|
resolv.write('nameserver ' + dns + '\n')
|
|
resolv.close()
|
|
|
|
|
|
def GetWirelessInterfaces():
|
|
""" Get available wireless interfaces.
|
|
|
|
Returns:
|
|
The first interface available.
|
|
|
|
"""
|
|
return misc.RunRegex(
|
|
re.compile('(\w*)\s*\w*\s*[a-zA-Z0-9.-_]*\s*(?=ESSID)', re.DOTALL | re.I | re.M | re.S),
|
|
misc.Run('iwconfig'))
|
|
|
|
|
|
class Interface(object):
|
|
""" Control a network interface. """
|
|
def __init__(self, iface, verbose=False):
|
|
""" Initialise the object.
|
|
|
|
Keyword arguments:
|
|
iface -- the name of the interface
|
|
verbose -- whether to print every command run
|
|
|
|
"""
|
|
self.iface = iface
|
|
self.verbose = verbose
|
|
|
|
def Check(self):
|
|
""" Check that all required tools are available."""
|
|
# TODO: Implement this function.
|
|
pass
|
|
|
|
|
|
def Up(self):
|
|
""" Bring the network interface up. """
|
|
cmd = 'ifconfig ' + self.iface + ' up'
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def Down(self):
|
|
""" Take down the network interface. """
|
|
cmd = 'ifconfig ' + self.iface + ' down'
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def SetAddress(self, ip=None, netmask=None, broadcast=None):
|
|
""" Set the IP addresses of an interface.
|
|
|
|
Keyword arguments:
|
|
ip -- interface IP address in dotted quad form
|
|
netmask -- netmask address in dotted quad form
|
|
broadcast -- broadcast address in dotted quad form
|
|
|
|
"""
|
|
cmd = 'ifconfig ' + self.iface + ' '
|
|
if ip:
|
|
cmd += ip + ' '
|
|
if netmask:
|
|
cmd += 'netmask ' + netmask + ' '
|
|
if broadcast:
|
|
cmd += 'broadcast ' + broadcast + ' '
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
def _parse_dhclient(self, pipe):
|
|
""" Parse the output of dhclient
|
|
|
|
Parses the output of dhclient and returns the status of
|
|
the connection attempt.
|
|
|
|
"""
|
|
dhclient_complete = False
|
|
dhclient_success = False
|
|
dh_no_offers = False
|
|
|
|
while not dhclient_complete:
|
|
line = pipe.readline()
|
|
if line == '': # Empty string means dhclient is done.
|
|
dhclient_complete = True
|
|
else:
|
|
print line.strip('\n')
|
|
if line.startswith('bound'):
|
|
dhclient_success = True
|
|
dhclient_complete = True
|
|
if line.startswith('No DHCPOFFERS'):
|
|
# We don't break in this case because dhclient will
|
|
# try to use an old lease if possible, so we may
|
|
# still make a successful connection.
|
|
dh_no_offers = True
|
|
|
|
if dhclient_success:
|
|
print 'DHCP connection successful'
|
|
return 'success'
|
|
if dh_no_offers:
|
|
print 'DHCP connection failed: No DHCP offers recieved'
|
|
return 'no_dhcp_offers'
|
|
else:
|
|
print 'DHCP connection failed: Reason unknown'
|
|
return 'dhcp_failed'
|
|
|
|
|
|
def StartDHCP(self):
|
|
""" Start the DHCP client to obtain an IP address. """
|
|
# TODO: Not all distros use dhclient to get an IP. We should
|
|
# add a way to determine what method is used (or let the user tell
|
|
# us), and run the cmd based on that.
|
|
cmd = 'dhclient ' + self.iface
|
|
if self.verbose: print cmd
|
|
pipe = misc.Run(cmd, include_stderr=True, return_pipe=True)
|
|
|
|
return self._parse_dhclient(pipe)
|
|
|
|
|
|
def StopDHCP(self):
|
|
""" Stop the DHCP client. """
|
|
cmd = 'killall dhclient dhclient3'
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def FlushRoutes(self):
|
|
""" Flush all network routes. """
|
|
cmd = 'ip route flush dev ' + self.iface
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def SetDefaultRoute(self, gw):
|
|
""" Add a default route with the specified gateway.
|
|
|
|
Keyword arguments:
|
|
gw -- gateway of the default route in dotted quad form
|
|
|
|
"""
|
|
cmd = 'route add default gw ' + gw
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def GetIP(self):
|
|
""" Get the IP address of the interface.
|
|
|
|
Returns:
|
|
The IP address of the interface in dotted quad form.
|
|
|
|
"""
|
|
cmd = 'ifconfig ' + self.iface
|
|
#if self.verbose: print cmd
|
|
output = misc.Run(cmd)
|
|
return misc.RunRegex(ip_pattern,output)
|
|
|
|
|
|
|
|
class WiredInterface(Interface):
|
|
""" Control a wired network interface. """
|
|
def __init__(self, iface, verbose=False):
|
|
""" Initialise the wired network interface class.
|
|
|
|
Keyword arguments:
|
|
iface -- name of the interface
|
|
verbose -- print all commands
|
|
|
|
"""
|
|
Interface.__init__(self, iface, verbose)
|
|
|
|
|
|
def GetPluggedIn(self):
|
|
""" Get the current physical connection state.
|
|
|
|
The method will first attempt to use ethtool do determine
|
|
physical connection state. Should ethtool fail to run properly,
|
|
mii-tool will be used instead.
|
|
|
|
"""
|
|
link_tool = 'ethtool'
|
|
tool_data = misc.Run(link_tool + ' ' + self.iface, True)
|
|
if misc.RunRegex(re.compile('(Operation not supported)|\
|
|
(ethtool: command not found)', re.I),
|
|
tool_data) is not None:
|
|
print "ethtool check failed, falling back to mii-tool"
|
|
link_tool = 'mii-tool'
|
|
|
|
if misc.RunRegex(re.compile('(Invalid argument)', re.I | re.M | re.S),
|
|
tool_data) is not None:
|
|
print 'wired interface appears down, putting up for mii-tool check'
|
|
self.Up()
|
|
|
|
tool_data = misc.Run(link_tool + ' ' + self.iface)
|
|
if misc.RunRegex(re.compile('(Link detected: yes)|(link ok)',
|
|
re.I | re.M | re.S), tool_data) is not None:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
class WirelessInterface(Interface):
|
|
""" Control a wireless network interface. """
|
|
def __init__(self, iface, verbose=False, wpa_driver='wext'):
|
|
""" Initialise the wireless network interface class.
|
|
|
|
Keyword arguments:
|
|
iface -- name of the interface
|
|
verbose -- print all commands
|
|
|
|
"""
|
|
Interface.__init__(self, iface, verbose)
|
|
self.wpa_driver = wpa_driver
|
|
|
|
|
|
def SetEssid(self, essid):
|
|
""" Set the essid of the wireless interface.
|
|
|
|
Keyword arguments:
|
|
essid -- essid to set the interface to
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface + ' essid "' + essid + '"'
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def StopWPA(self):
|
|
""" Stop wireless encryption. """
|
|
cmd = 'killall wpa_supplicant'
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def GetNetworks(self):
|
|
""" Get a list of available wireless networks.
|
|
|
|
Returns:
|
|
A list containing available wireless networks.
|
|
|
|
"""
|
|
cmd = 'iwlist ' + self.iface + ' scan'
|
|
if self.verbose: print cmd
|
|
results = misc.Run(cmd)
|
|
|
|
# Split the networks apart, using Cell as our split point
|
|
# this way we can look at only one network at a time.
|
|
# The spaces around ' Cell ' are to minimize the chance that someone
|
|
# has an essid named Cell...
|
|
networks = results.split( ' Cell ' )
|
|
|
|
# Get available network info from iwpriv get_site_survey
|
|
# if we're using a ralink card (needed to get encryption info)
|
|
if self.wpa_driver == RALINK_DRIVER:
|
|
ralink_info = self._GetRalinkScanInfo()
|
|
else:
|
|
ralink_info = None
|
|
|
|
# An array for the access points
|
|
access_points = []
|
|
for cell in networks:
|
|
# Only use sections where there is an ESSID.
|
|
if cell.count('ESSID:') > 0:
|
|
# Add this network to the list of networks
|
|
entry = self._ParseAccessPoint(cell, ralink_info)
|
|
if entry is not None:
|
|
access_points.append(entry)
|
|
|
|
return access_points
|
|
|
|
|
|
def _FreqToChannel(self, freq):
|
|
""" Translate the specified frequency to a channel.
|
|
|
|
Note: This function is simply a lookup table and therefore the
|
|
freq argument must be in the table to provide a valid channel.
|
|
|
|
Keyword arguments:
|
|
freq -- string containing the specified frequency
|
|
|
|
Returns:
|
|
The channel number, or None if not found.
|
|
|
|
"""
|
|
if freq == '2.412 GHz': return 1
|
|
elif freq == '2.417 GHz': return 2
|
|
elif freq == '2.422 GHz': return 3
|
|
elif freq == '2.427 GHz': return 4
|
|
elif freq == '2.432 GHz': return 5
|
|
elif freq == '2.437 GHz': return 6
|
|
elif freq == '2.442 GHz': return 7
|
|
elif freq == '2.447 GHz': return 8
|
|
elif freq == '2.452 GHz': return 9
|
|
elif freq == '2.457 GHz': return 10
|
|
elif freq == '2.462 GHz': return 11
|
|
elif freq == '2.467 GHz': return 12
|
|
elif freq == '2.472 GHz': return 13
|
|
elif freq == '2.484 GHz': return 14
|
|
else:
|
|
print 'Couldn\'t determine channel number for current network - ' + freq
|
|
return None
|
|
|
|
def _GetRalinkInfo(self):
|
|
""" Get a network info list used for ralink drivers
|
|
|
|
Calls iwpriv <wireless interface> get_site_survey, which
|
|
on some ralink cards will return encryption and signal
|
|
strength info for wireless networks in the area.
|
|
|
|
"""
|
|
iwpriv = misc.Run('iwpriv ' + self.iface + ' get_site_survey')
|
|
lines = iwpriv.splitlines()
|
|
lines = lines[2:]
|
|
return lines
|
|
|
|
|
|
def _ParseAccessPoint(self, cell, ralink_info):
|
|
""" Parse a single cell from the output of iwlist.
|
|
|
|
Keyword arguments:
|
|
cell -- string containing the cell information
|
|
ralink_info -- string contating network information needed
|
|
for ralink cards.
|
|
|
|
Returns:
|
|
|
|
A dictionary containing the cell networks properties.
|
|
|
|
"""
|
|
ap = {}
|
|
# ESSID - Switch '<hidden>' to 'Hidden' to remove
|
|
# brackets that can mix up formatting.
|
|
ap['essid'] = misc.RunRegex(essid_pattern, cell)
|
|
try:
|
|
ap['essid'] = misc.to_unicode(ap['essid'])
|
|
except UnicodeDecodeError, UnicodeEncodeError:
|
|
print 'Unicode problem with current network essid, ignoring!!'
|
|
return None
|
|
if ap['essid'] == '<hidden>':
|
|
ap['essid'] = 'Hidden'
|
|
ap['hidden'] = True
|
|
else:
|
|
ap['hidden'] = False
|
|
|
|
# Channel - For cards that don't have a channel number,
|
|
# convert the frequency.
|
|
ap['channel'] = misc.RunRegex(channel_pattern, cell)
|
|
if ap['channel'] == None:
|
|
freq = misc.RunRegex(freq_pattern, cell)
|
|
ap['channel'] = self._FreqToChannel(freq)
|
|
|
|
# BSSID
|
|
ap['bssid'] = misc.RunRegex(ap_mac_pattern, cell)
|
|
|
|
# Mode
|
|
ap['mode'] = misc.RunRegex(mode_pattern, cell)
|
|
|
|
# Break off here if we're using a ralink card
|
|
if self.wpa_driver == RALINK_DRIVER:
|
|
ap = self._ParseRalinkAccessPoint(ap, ralink_info, cell)
|
|
elif misc.RunRegex(wep_pattern, cell) == 'on':
|
|
# Encryption - Default to WEP
|
|
ap['encryption'] = True
|
|
ap['encryption_method'] = 'WEP'
|
|
|
|
if misc.RunRegex(wpa1_pattern,cell) == 'WPA Version 1':
|
|
ap['encryption_method'] = 'WPA'
|
|
|
|
if misc.RunRegex(altwpa_pattern,cell) == 'wpa_ie':
|
|
ap['encryption_method'] = 'WPA'
|
|
|
|
if misc.RunRegex(wpa2_pattern,cell) == 'WPA2':
|
|
ap['encryption_method'] = 'WPA2'
|
|
else:
|
|
ap['encryption'] = False
|
|
|
|
# Link Quality
|
|
# Set strength to -1 if the quality is not found
|
|
|
|
# more of the patch from
|
|
# https://bugs.launchpad.net/wicd/+bug/175104
|
|
if (strength_pattern.match(cell)):
|
|
[(strength, max_strength)] = strength_pattern.findall(cell)
|
|
if max_strength:
|
|
ap["quality"] = 100 * int(strength) // int(max_strength)
|
|
else:
|
|
ap["quality"] = int(strength)
|
|
elif misc.RunRegex(altstrength_pattern,cell):
|
|
ap['quality'] = misc.RunRegex(altstrength_pattern,cell)
|
|
else:
|
|
ap['quality'] = -1
|
|
|
|
# Signal Strength (only used if user doesn't want link
|
|
# quality displayed or it isn't found)
|
|
if misc.RunRegex(signaldbm_pattern, cell):
|
|
ap['strength'] = misc.RunRegex(signaldbm_pattern, cell)
|
|
elif self.wpa_driver != RALINK_DRIVER: # This is already set for ralink
|
|
ap['strength'] = -1
|
|
|
|
return ap
|
|
|
|
|
|
def _ParseRalinkAccessPoint(self, ap, ralink_info, cell):
|
|
""" Parse encryption and signal strength info for ralink cards
|
|
|
|
Keyword arguments:
|
|
ap -- array containing info about the current access point
|
|
ralink_info -- string containing available network info
|
|
cell -- string containing cell information
|
|
|
|
Returns:
|
|
Updated array containing info about the current access point
|
|
|
|
"""
|
|
lines = ralink_info
|
|
for x in lines: # Iterate through all networks found
|
|
info = x.split()
|
|
# Make sure we read in a valid entry
|
|
if len(info) < 5 or info == None or info == '':
|
|
break
|
|
if info[2] == ap['essid']:
|
|
if misc.RunRegex(wep_pattern, cell) == 'on':
|
|
ap['encryption'] = True
|
|
if info[5] == 'WEP' or (
|
|
(info[5] == 'OPEN' or info[5] == 'SHARED') and
|
|
info[4] == 'WEP'):
|
|
ap['encryption_method'] = 'WEP'
|
|
elif info[5] == 'WPA-PSK':
|
|
ap['encryption_method'] = 'WPA'
|
|
elif info[5] == 'WPA2-PSK':
|
|
ap['encryption_method'] = 'WPA2'
|
|
else:
|
|
print 'Unknown AuthMode, can\'t assign encryption_method!!'
|
|
ap['encryption_method'] = 'Unknown'
|
|
else:
|
|
ap['encryption'] = False
|
|
|
|
# Set signal strength here (in dBm, not %),
|
|
# ralink drivers don't return link quality
|
|
ap['strength'] = info[1]
|
|
return ap
|
|
|
|
|
|
def SetMode(self, mode):
|
|
""" Set the mode of the wireless interface.
|
|
|
|
Keyword arguments:
|
|
mode -- mode to set the interface to
|
|
|
|
"""
|
|
if mode.lower() == 'master':
|
|
mode = 'managed'
|
|
cmd = 'iwconfig ' + self.iface + ' mode ' + mode
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def SetChannel(self, channel):
|
|
""" Set the channel of the wireless interface.
|
|
|
|
Keyword arguments:
|
|
channel -- channel to set the interface to
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface + ' channel ' + str(channel)
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def SetKey(self, key):
|
|
""" Set the encryption key of the wireless interface.
|
|
|
|
Keyword arguments:
|
|
key -- encryption key to set
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface + ' key ' + key
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def Associate(self, essid, channel=None, bssid=None):
|
|
""" Associate with the specified wireless network.
|
|
|
|
Keyword arguments:
|
|
essid -- essid of the network
|
|
channel -- channel of the network
|
|
bssid -- bssid of the network
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface + ' essid "' + essid + '"'
|
|
if channel:
|
|
cmd += ' channel ' + str(channel)
|
|
if bssid:
|
|
cmd += ' ap ' + bssid
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def Authenticate(self, network):
|
|
""" Authenticate with the specified wireless network.
|
|
|
|
Keyword arguments:
|
|
network -- dictionary containing network info
|
|
|
|
"""
|
|
misc.ParseEncryption(network)
|
|
if self.wpa_driver == RALINK_DRIVER:
|
|
self._AuthenticateRalinkLegacy(network)
|
|
else:
|
|
cmd = ('wpa_supplicant -B -i ' + self.iface + ' -c "'
|
|
+ wpath.networks + network['bssid'].replace(':','').lower()
|
|
+ '" -D ' + self.wpa_driver)
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
def ValidateAuthentication(self):
|
|
""" Validate WPA authentication.
|
|
|
|
Validate that the wpa_supplicant authentication
|
|
process was successful.
|
|
|
|
NOTE: It's possible this could return False,
|
|
even though in actuality wpa_supplicant just isn't
|
|
finished yet.
|
|
|
|
"""
|
|
# Right now there's no way to do this for these drivers
|
|
if self.wpa_driver == RALINK_DRIVER:
|
|
return True
|
|
|
|
cmd = 'wpa_cli -i ' + self.iface + ' status'
|
|
if self.verbose: print cmd
|
|
output = misc.Run(cmd)
|
|
result = misc.RunRegex(auth_pattern, output)
|
|
if result == "COMPLETED":
|
|
return True
|
|
elif result =="DISCONNECTED":
|
|
# Force a rescan to get wpa_supplicant moving again.
|
|
self._ForceSupplicantScan()
|
|
return self.ValidateAuthentication()
|
|
else:
|
|
print 'wpa_supplicant authentication may have failed.'
|
|
return False
|
|
pass
|
|
|
|
def _ForceSupplicantScan(self):
|
|
""" Force wpa_supplicant to rescan available networks.
|
|
|
|
This function forces wpa_supplicant to rescan, then sleeps
|
|
to allow the scan to finish and reassociation to take place.
|
|
This works around authentication validation failing for
|
|
wpa_supplicant sometimes becaues it remains in a DISCONNECTED
|
|
state for quite a while, before a rescan takes places, all before
|
|
even attempting to authenticate.
|
|
|
|
"""
|
|
print 'wpa_supplicant rescan forced...'
|
|
cmd = 'wpa_cli -i' + self.iface + ' scan'
|
|
misc.Run(cmd)
|
|
time.sleep(5)
|
|
print 'Trying to validate authentication again'
|
|
|
|
def _AuthenticateRalinkLegacy(self, network):
|
|
""" Authenticate with the specified wireless network.
|
|
|
|
This function handles Ralink legacy cards that cannot use
|
|
wpa_supplicant.
|
|
|
|
Keyword arguments:
|
|
network -- dictionary containing network info
|
|
|
|
"""
|
|
if network.get('key') != None:
|
|
lines = self._GetRalinkInfo()
|
|
for x in lines:
|
|
info = x.split()
|
|
if len(info) < 5:
|
|
break
|
|
if info[2] == network.get('essid'):
|
|
if info[5] == 'WEP' or (info[5] == 'OPEN' and info[4] == 'WEP'):
|
|
print 'Setting up WEP'
|
|
cmd = 'iwconfig ' + self.iface + ' key ' + network.get('key')
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
else:
|
|
if info[5] == 'SHARED' and info[4] == 'WEP':
|
|
print 'Setting up WEP'
|
|
auth_mode = 'SHARED'
|
|
key_name = 'Key1'
|
|
elif info[5] == 'WPA-PSK':
|
|
print 'Setting up WPA-PSK'
|
|
auth_mode = 'WPAPSK'
|
|
key_name = 'WPAPSK'
|
|
elif info[5] == 'WPA2-PSK':
|
|
print 'Setting up WPA2-PSK'
|
|
auth_mode = 'WPA2PSK'
|
|
key_name = 'WPAPSK'
|
|
else:
|
|
print 'Unknown AuthMode, can\'t complete connection process!'
|
|
return
|
|
|
|
cmd_list = []
|
|
cmd_list.append('NetworkType=' + info[6])
|
|
cmd_list.append('AuthMode=' + auth_mode)
|
|
cmd_list.append('EncryptType=' + info[4])
|
|
cmd_list.append('SSID=' + info[2])
|
|
cmd_list.append(key_name + '=' + network.get('key'))
|
|
if info[5] == 'SHARED' and info[4] == 'WEP':
|
|
cmd_list.append('DefaultKeyID=1')
|
|
#TODO: Confirm whether this second SSID set is required.
|
|
cmd_list.append('SSID=' + info[2])
|
|
|
|
for cmd in cmd_list:
|
|
cmd = 'iwpriv ' + self.iface + ' '
|
|
if self.verbose: print cmd
|
|
misc.Run(cmd)
|
|
|
|
|
|
def GetSignalStrength(self):
|
|
""" Get the signal strength of the current network.
|
|
|
|
Returns:
|
|
The signal strength.
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface
|
|
# if self.verbose: print cmd
|
|
output = misc.Run(cmd)
|
|
# implemented the patch provided in
|
|
# https://bugs.launchpad.net/wicd/+bug/175104
|
|
# it was for the stable version, so I've improvised here
|
|
# should work though
|
|
|
|
#strength = misc.RunRegex(strength_pattern,output)
|
|
|
|
[(strength, max_strength)] = strength_pattern.findall(output)
|
|
if max_strength and strength:
|
|
return 100 * int(strength) / int(max_strength)
|
|
|
|
if strength == None:
|
|
strength = misc.RunRegex(altstrength_pattern,output)
|
|
return strength
|
|
|
|
|
|
def GetDBMStrength(self):
|
|
""" Get the dBm signal strength of the current network.
|
|
|
|
Returns:
|
|
The dBm signal strength.
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface
|
|
# if self.verbose: print cmd
|
|
output = misc.Run(cmd)
|
|
dbm_strength = misc.RunRegex(signaldbm_pattern,output)
|
|
return dbm_strength
|
|
|
|
|
|
def GetCurrentNetwork(self):
|
|
""" Get the essid of the current network.
|
|
|
|
Returns:
|
|
The current network essid.
|
|
|
|
"""
|
|
cmd = 'iwconfig ' + self.iface
|
|
# if self.verbose: print cmd
|
|
output = misc.Run(cmd)
|
|
network = misc.RunRegex(re.compile('.*ESSID:"(.*?)"',re.DOTALL | re.I | re.M | re.S), output)
|
|
if network is not None:
|
|
network = misc.to_unicode(network)
|
|
return network
|