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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
#!/usr/bin/python
"""net_monitor: wifi monitoring"""
import os
import socket
import fcntl
import struct
import traceback
import array
# native library implements a few bits
import _native
class Monitor:
# based on http://svn.pardus.org.tr/pardus/tags/pardus-1.0/system/base/wireless-tools/comar/link.py
# wireless IOCTL constants
SIOCGIWMODE = 0x8B07 # get operation mode
SIOCGIWRATE = 0x8B21 # get default bit rate
SIOCGIWESSID = 0x8B1B # get essid
# wireless modes
modes = ['Auto', 'Ad-Hoc', 'Managed', 'Master', 'Repeat', 'Second', 'Monitor']
# constants
SIZE_KB=1000
SIZE_MB=1000**2
SIZE_GB=1000**3
def __init__(self):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.net = {}
def ioctl(self, func, params):
return fcntl.ioctl(self.sock.fileno(), func, params)
def wifi_ioctl(self, iface, func, arg=None):
"""Prepares some variables for wifi and runs ioctl"""
if not arg:
data = (iface + '\0' * 32)[:32]
else:
data = (iface + '\0' * 16)[:16] + arg
try:
res = self.ioctl(func, data)
return res
except:
return None
def wifi_get_max_quality(self, iface):
"""Gets maximum quality value"""
return _native.wifi_get_max_quality(iface)
def wifi_get_ap(self, iface):
"""Gets access point address"""
return _native.wifi_get_ap(iface)
def wifi_get_essid(self, iface):
"""Get current essid for an interface"""
buffer = array.array('c', '\0' * 16)
addr, length = buffer.buffer_info()
arg = struct.pack('Pi', addr, length)
self.wifi_ioctl(iface, self.SIOCGIWESSID, arg)
return buffer.tostring().strip('\0')
def wifi_get_mode(self, iface):
"""Get current mode from an interface"""
result = self.wifi_ioctl(iface, self.SIOCGIWMODE)
if not result:
return _("Unknown")
mode = struct.unpack("i", result[16:20])[0]
return self.modes[mode]
def wifi_get_bitrate(self, iface):
"""Gets current operating rate from an interface"""
# Note: KILO is not 2^10 in wireless tools world
result = self.wifi_ioctl(iface, self.SIOCGIWRATE)
if result:
size = struct.calcsize('ihbb')
m, e, i, pad = struct.unpack('ihbb', result[16:16+size])
if e == 0:
bitrate = m
else:
bitrate = float(m) * 10**e
return bitrate
else:
return 0
def get_status(self, ifname):
try:
with open("/sys/class/net/%s/operstate" % ifname) as fd:
status = fd.readline().strip()
except:
status="unknown"
if status == "unknown":
# pretty-format interface status
status = _("Unknown")
return status
def wireless_stats(self):
"""Check if device is wireless and get its details if necessary"""
try:
stats = {}
with open("/proc/net/wireless") as fd:
ifaces = fd.readlines()[2:]
for line in ifaces:
line = line.strip()
if not line:
continue
iface, params = line.split(":", 1)
iface = iface.strip()
params = params.replace(".", "").split()
link = int(params[1])
stats[iface] = link
return stats
except:
# something bad happened
traceback.print_exc()
return {}
def has_wireless(self, iface):
"""Checks if device has wireless capabilities"""
return os.access("/sys/class/net/%s/wireless" % iface, os.R_OK)
def get_address(self, ifname):
mac=_("No physical address")
# ip address
try:
res = self.ioctl(0x8915, struct.pack('256s', ifname[:15]))[20:24]
addr=socket.inet_ntoa(res)
except:
addr=_("No address assigned")
# mac address
try:
mac_struct=self.ioctl(0x8927, struct.pack('256s', ifname[:15]))[18:24]
mac=":".join(["%02x" % ord(char) for char in mac_struct])
except:
addr=_("No address assigned")
# addr, mac
return addr, mac
def readnet(self):
"""Reads values from /proc/net/dev"""
net = {}
try:
with open("/proc/net/dev") as fd:
data = fd.readlines()[2:]
for l in data:
dev, vals = l.split(":")
dev = dev.strip()
vals = vals.split()
net[dev] = vals
except:
traceback.print_exc()
return net
def get_traffic(self, iface, net=None):
if not net:
if not self.net:
self.readnet()
net = self.net
if iface in net:
bytes_in = int(net[iface][0])
bytes_out = int(net[iface][8])
else:
bytes_in = 0
bytes_out = 0
return bytes_in, bytes_out
def format_size(self, size, opt=""):
"""Pretty-Formats size"""
# convert to float
size_f = size * 1.0
pretty_size = None
pretty_bytes = "%d Bytes%s" % (size, opt)
if size > self.SIZE_GB:
pretty_size = "%0.2f GB%s" % (size_f / self.SIZE_GB, opt)
elif size > self.SIZE_MB:
pretty_size = "%0.2f MB%s" % (size_f / self.SIZE_MB, opt)
elif size > self.SIZE_KB:
pretty_size = "%0.2f KB%s" % (size_f / self.SIZE_KB, opt)
else:
pretty_size = pretty_bytes
return pretty_size, pretty_bytes
def get_dns(self):
"""Returns list of DNS servers"""
servers = []
try:
with open("/etc/resolv.conf") as fd:
data = fd.readlines()
for l in data:
l = l.strip()
if not l:
continue
fields = l.split()
if fields[0] == 'nameserver':
servers.append(fields[1])
except:
traceback.print_exc()
return servers
def get_routes(self):
"""Read network routes"""
routes = []
default_routes = []
try:
with open("/proc/net/route") as fd:
data = fd.readlines()[1:]
for l in data:
l = l.strip()
if not l:
continue
params = l.split()
iface = params[0]
dst = int(params[1], 16)
gw = int(params[2], 16)
gw_str = socket.inet_ntoa(struct.pack("L", gw))
metric = int(params[6], 16)
mask = int(params[7], 16)
routes.append((iface, dst, mask, gw, metric))
if dst == 0 and mask == 0:
default_routes.append((gw_str, iface))
except:
traceback.print_exc()
pass
return routes, default_routes
|
