1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
#! /usr/bin/env python
import sys
import dbus
import shlex
import subprocess
from signal import SIGTERM
from os import kill
from time import sleep
# dbus constants.
WPAS_DBUS_SERVICE = "fi.epitest.hostap.WPASupplicant"
WPAS_DBUS_INTERFACE = "fi.epitest.hostap.WPASupplicant"
WPAS_DBUS_OPATH = "/fi/epitest/hostap/WPASupplicant"
WPAS_DBUS_INTERFACES_INTERFACE = "fi.epitest.hostap.WPASupplicant.Interface"
WPAS_DBUS_INTERFACES_OPATH = "/fi/epitest/hostap/WPASupplicant/Interfaces"
WPAS_DBUS_BSSID_INTERFACE = "fi.epitest.hostap.WPASupplicant.BSSID"
WPAS_DBUS_NETWORKS_INTERFACE = "fi.epitest.hostap.WPASupplicant.Network"
def read_config(config):
cfg = shlex.split(open(config, "r").read())
options = {}
for line in cfg:
(var, delim, value) = line.partition('=')
if delim and var.lstrip()[0] != "#":
options[var] = value
return options
def wep_hex2dec(key):
if len(key) not in [10, 26]:
print "Bad key"
raise SyntaxError
x=0
new_key=[]
while x<len(key):
new_key.append(int(key[x:x+2],16))
x+=2
return new_key
def start(profile):
# TODO: Add check if it's even a wireless interface
# Interface up - probably redundant, should be 'ip' instead.
#try:
# subprocess.check_call(["ifconfig", profile['INTERFACE'], "up"])
#except subprocess.CalledProcessError:
# print " - Could not bring interface up"
# return False
# Manually set any iwconfig options - redundant, use custom wpa_supplicant config instead.
#if profile.has_key('IWCONFIG'):
# subprocess.call(["iwconfig", profile['INTERFACE'], profile['IWCONFIG']])
# Base arguments
args=["wpa_supplicant", "-Bu", "-P/var/run/wpa_supplicant.pid"]
try:
args.append(profile['WPA_OPTS'])
except KeyError:
args.append("-Dwext")
if profile['SECURITY'] == "wpa-config":
try:
args.append("-c" + profile["WPA_CONF"])
except KeyError:
args.append("-c/etc/wpa_supplicant.conf")
elif not profile['SECURITY'] in ['wpa', 'wep', 'none']:
print " - Invalid security chosen"
return False
# Start wpa_supplicant
supplicant = subprocess.Popen(args,stderr=subprocess.STDOUT,stdout=subprocess.PIPE)
output = supplicant.communicate()[0]
if supplicant.returncode not in [255,0]:
print output
print " - Could not start wpa_supplicant"
return False
# Connect to wpa_supplicant
bus = dbus.SystemBus()
wpas_obj = bus.get_object(WPAS_DBUS_SERVICE, WPAS_DBUS_OPATH)
wpas = dbus.Interface(wpas_obj, WPAS_DBUS_INTERFACE)
# Add/Get interface path
try:
driver=profile["WPA_DRIVER"]
except KeyError:
driver="wext"
try:
path = wpas.getInterface(profile["INTERFACE"])
except dbus.exceptions.DBusException:
path = wpas.addInterface(profile["INTERFACE"], {"driver":dbus.String(driver,variant_level=1)})
# Get interface object
if_obj = bus.get_object(WPAS_DBUS_SERVICE, path)
iface = dbus.Interface(if_obj, WPAS_DBUS_INTERFACES_INTERFACE);
# Add and select the network. Networks already specified for wpa-config
if profile['SECURITY'] in ['wpa','wep','none']:
path = iface.addNetwork()
net_obj = bus.get_object(WPAS_DBUS_SERVICE, path)
rnet = dbus.Interface(net_obj, WPAS_DBUS_NETWORKS_INTERFACE)
iface.selectNetwork(rnet)
if profile['SECURITY'] == "wpa":
opts = dbus.Dictionary({"ssid": dbus.ByteArray(profile['ESSID']),
"psk": dbus.String(profile['KEY'])},
signature="sv")
rnet.set(opts)
elif profile['SECURITY'] == "wep":
key=profile['KEY']
if key[:2] == "s:": # String key prefixed by "s:"
keydbus=key[2:]
else: # Hex key
key=wep_hex2dec(key)
keydbus = dbus.ByteArray()
for l in key:
keydbus+=chr(l)
opts = dbus.Dictionary({"ssid": dbus.ByteArray(profile['ESSID']),
"key_mgmt": dbus.String("NONE"),
"wep_tx_keyidx": dbus.Int32(1),
"wep_key0": dbus.ByteArray(keydbus)},
signature="sv")
rnet.set(opts)
elif profile['SECURITY'] == "none":
opts = dbus.Dictionary({"ssid": dbus.ByteArray(profile['ESSID'])},
signature="sv")
rnet.set(opts)
# Determine timeout
try:
timeout = int(profile["TIMEOUT"])
except KeyError:
timeout = 15
# Check for association
n=0
while n <= timeout:
n+=1
sleep(1)
state = iface.state()
if state == "COMPLETED":
break
if n == timeout:
print " - Association/Authentication failed:", state
return False
# Run ethernet and get an ip.
try:
subprocess.check_call(["/usr/lib/network/connections/ethernet-iproute", "up", sys.argv[2]])
except subprocess.CalledProcessError:
return False
return True
def stop(profile):
subprocess.call(["/usr/lib/network/connections/ethernet", "down", sys.argv[2]])
kill(int(open("/var/run/wpa_supplicant.pid").read()),SIGTERM)
return True
if __name__ == "__main__":
profile = read_config("/etc/network.d/"+sys.argv[2])
if sys.argv[1] == "up":
sys.exit(not start(profile))
elif sys.argv[1] == "down":
sys.exit(not stop(profile))
|
