def bw(self, distance, sta, ap, wlan):
mode = ap.mode
signalRange = ap.range
customStep = self.custom_step(mode)
custombw = self.custom_bw(mode)
if distance != 0:
if ap.equipmentModel == None:
bw = self.set_bw_node_moving(mode)
for n in range(0,signalRange+1):
sta.receivedPower[wlan] = -50 - distance
if n % customStep==0:
if n>=distance:
return bw
elif distance > signalRange:
return 0
bw = bw - custombw
elif ap.equipmentModel != None and self.propagationModel == '':
sta.receivedPower[wlan] = -50 - distance
if sta.associatedAp[wlan] != 'NoAssociated':
r = deviceDataRate(ap, sta, wlan)
self.rate = r.rate
else:
self.rate = 0
return self.rate
else:
if sta.associatedAp[wlan] != 'NoAssociated':
r = deviceDataRate(ap, sta, wlan)
self.rate = r.rate
else:
self.rate = 0
return self.rate
else:
return self.set_bw(mode)
def calculateRate(self, sta, ap, dist):
value = deviceDataRate(sta, ap, 0)
custombw = value.rate
rate = value.rate / 2.5
if ap.equipmentModel == None:
rate = custombw * (1.1**-dist)
if rate <= 0:
rate = 1
return rate
def setBw(self, ap, iface):
""" Set bw to AP """
value = deviceDataRate(ap, None, None)
bw = value.rate
ap.cmd("tc qdisc replace dev %s \
root handle 2: tbf rate %sMbit burst 15000 latency 2ms" % (iface, bw))
#Reordering packets
ap.cmd('tc qdisc add dev %s parent 2:1 handle 10: pfifo limit 1000' % (iface))
def calculateRate(self, sta, ap, dist):
value = deviceDataRate(sta, ap, 0)
custombw = value.rate
rate = value.rate / 2.5
if ap.equipmentModel == None:
rate = custombw * (1.1 ** -dist)
if rate <= 0:
rate = 1
return rate
def setBw(self, ap, iface):
""" Set bw to AP """
value = deviceDataRate(ap, None, None)
bw = value.rate
ap.cmd("tc qdisc replace dev %s \
root handle 2: tbf rate %sMbit burst 15000 latency 2ms" % (iface, bw))
#Reordering packets
ap.cmd('tc qdisc add dev %s parent 2:1 handle 10: pfifo limit 1000' % (iface))
def calculateRate(self, sta, ap, dist):
value = deviceDataRate(sta, ap, 0)
custombw = value.rate
rate = value.rate / 2.5
if 'equipmentModel' not in ap.params.keys():
rate = custombw * (1.1 ** -dist)
if rate <= 0:
rate = 1
return rate
def setBw(self, ap, wlan):
""" Set bw to AP """
iface = str(ap) + '-wlan' + str(wlan)
value = deviceDataRate(ap, None, None)
bw = value.rate
ap.pexec("tc qdisc replace dev %s \
root handle 2: netem rate %.2fmbit \
latency 1ms \
delay 0.1ms" % (iface, bw))
#Reordering packets
ap.pexec('tc qdisc add dev %s parent 2:1 pfifo limit 1000' % iface)
def setBW(self, sta=None, ap=None, wlan=0, dist=0):
"""set BW
:param sta: station
:param ap: access point
:param wlan: wlan ID
:param dist: distance between source and destination
"""
value = deviceDataRate(sta, ap, wlan)
custombw = value.rate
rate = eval(self.equationBw)
if rate <= 0.0:
rate = 0.1
return rate
def setBw(self, ap, wlan):
""" Set bw to AP """
iface = str(ap.virtualWlan) + str(wlan)
if ap.equipmentModel == None:
bw = wifiParameters.set_bw(ap.mode)
else:
r = deviceDataRate(ap, None, wlan)
bw = r.rate
os.system("tc qdisc replace dev %s \
root handle 2: netem rate %.2fmbit \
latency 1ms \
delay 0.1ms" % (iface, bw))
#Reordering packets
os.system('tc qdisc add dev %s parent 2:1 pfifo limit 10000' % iface)
def addHoc(self, node, cls=None, **params):
"""
Configure AdHoc
node: name of the node
cls: custom association class/constructor
params: parameters for station
"""
if 'intf' in params:
for intf_ in node.params['wlan']:
if params['intf'] == intf_:
wlan = node.params['wlan'].index(intf_)
else:
wlan = node.ifaceToAssociate
node.func[wlan] = 'adhoc'
node.params['txpower'][wlan] = 20
node.params['ssid'] = []
for w in range(0, len(node.params['wlan'])):
node.params['ssid'].append('')
ssid = ("%s" % params.pop('ssid', {}))
if (ssid != "{}"):
node.params['ssid'][wlan] = ssid
node.params['associatedTo'][wlan] = ssid
else:
node.params['ssid'][wlan] = 'adhocNetwork'
node.params['associatedTo'][wlan] = 'adhocNetwork'
deviceRange(node)
value = deviceDataRate(sta=node, wlan=wlan)
self.bw = value.rate
enable_wmediumd = self.useWmediumd
if 'channel' in params:
node.setChannel(node.params['wlan'][wlan], params['channel'])
cls = Association
cls.configureAdhoc(node, wlan, enable_wmediumd)
if 'intf' not in params:
node.ifaceToAssociate += 1
def addHoc(self, node, cls=None, **params):
"""
Configure AdHoc
node: name of the node
cls: custom association class/constructor
params: parameters for station
"""
if 'intf' in params:
for intf_ in node.params['wlan']:
if params['intf'] == intf_:
wlan = node.params['wlan'].index(intf_)
else:
wlan = node.ifaceToAssociate
node.func[wlan] = 'adhoc'
options = {
'ip':
ipAdd(params['nextIP'],
ipBaseNum=params['ipBaseNum'],
prefixLen=params['prefixLen']) + '/%s' % params['prefixLen']
}
options.update(params)
node.params['cell'] = []
node.params['ssid'] = []
for w in range(0, len(node.params['wlan'])):
node.params['cell'].append('')
node.params['ssid'].append('')
ip = ("%s" % params.pop('ip', {}))
if ip == "{}":
ip = options['ip']
ssid = ("%s" % params.pop('ssid', {}))
if (ssid != "{}"):
node.params['ssid'][wlan] = ssid
node.params['associatedTo'][wlan] = ssid
else:
node.params['ssid'][wlan] = 'adhocNetwork'
node.params['associatedTo'][wlan] = 'adhocNetwork'
cell = ("%s" % params.pop('cell', {}))
if (cell != "{}"):
node.params['cell'][wlan] = cell
else:
if 'position' not in node.params:
node.params['cell'][wlan] = 'FE:4C:6A:B5:A9:7E'
deviceRange(node)
value = deviceDataRate(sta=node, wlan=wlan)
self.bw = value.rate
options['sta'] = node
options.update(params)
# Set default MAC - this should probably be in Link
options.setdefault('addr1', self.randMac())
cls = Association
cls.configureAdhoc(node, self.useWmediumd)
if 'intf' not in params:
node.ifaceToAssociate += 1
def setDataRate(self, sta=None, ap=None, wlan=0):
value = deviceDataRate(sta, ap, wlan)
return value
def setDataRate(cls, sta=None, ap=None, wlan=0):
"Set the rate"
value = deviceDataRate(sta, ap, wlan)
return value
def addMesh(self, node, cls=None, **params):
"""
Configure wireless mesh
node: name of the node
cls: custom association class/constructor
params: parameters for node
"""
if 'intf' in params:
for intf_ in node.params['wlan']:
if params['intf'] == intf_:
wlan = node.params['wlan'].index(intf_)
else:
if node.type == 'station':
wlan = node.ifaceToAssociate
else:
wlan = 0
node.func[wlan] = 'mesh'
options = {
'ip':
ipAdd(params['nextIP'],
ipBaseNum=params['ipBaseNum'],
prefixLen=params['prefixLen']) + '/%s' % params['prefixLen']
}
options.update(params)
node.params['ssid'] = []
if hasattr(node, 'meshMac'):
for n in range(len(node.params['wlan'])):
node.meshMac.append('')
node.params['ssid'].append('')
else:
node.meshMac = []
for n in range(len(node.params['wlan'])):
node.meshMac.append('')
node.params['ssid'].append('')
ip = ("%s" % params.pop('ip', {}))
if ip == "{}":
ip = options['ip']
ssid = ("%s" % params['ssid'])
if (ssid != "{}"):
node.params['ssid'][wlan] = ssid
else:
node.params['ssid'][wlan] = 'meshNetwork'
deviceRange(node)
value = deviceDataRate(sta=node, wlan=wlan)
self.bw = value.rate
options['node'] = node
options.update(params)
# Set default MAC - this should probably be in Link
options.setdefault('addr1', self.randMac())
cls = Association
cls.configureMesh(node, wlan)
if 'intf' not in params:
node.ifaceToAssociate += 1
