def behavior(self, mininet):
seconds = 5
info('Replaying process starting in %s seconds\n' % seconds)
time.sleep(seconds)
info('Replaying process has been started\n')
currentTime = time.time()
stations = mininet.stations
for sta in stations:
sta.params['frequency'][0] = link.frequency(sta, 0)
while True:
if len(stations) == 0:
break
time_ = time.time() - currentTime
for sta in stations:
if hasattr(sta, 'time'):
if time_ >= sta.time[0]:
if sta.params['associatedTo'][0] != '':
bw = sta.bw[0]
loss = sta.loss[0]
delay = sta.delay[0]
latency = sta.latency[0]
link.tc(sta, 0, bw, loss, latency, delay)
del sta.bw[0]
del sta.loss[0]
del sta.delay[0]
del sta.latency[0]
del sta.time[0]
if len(sta.time) == 0:
stations.remove(sta)
time.sleep(0.001)
info('Replaying process has finished!')
def rssi(self, mininet, propagationModel='', n=0):
#if mobility.DRAW:
# instantiateGraph(mininet)
currentTime = time.time()
staList = mininet.stations
ang = {}
for sta in staList:
ang[sta] = random.uniform(0, 360)
sta.params['frequency'][0] = link.frequency(sta, 0)
while True:
if len(staList) == 0:
break
time_ = time.time() - currentTime
for sta in staList:
if hasattr(sta, 'time'):
if time_ >= sta.time[0]:
ap = sta.params['associatedTo'][0] # get AP
sta.params['rssi'][0] = sta.rssi[0]
if ap != '':
rssi = sta.rssi[0]
dist = int('%d' % self.calculateDistance(
sta, ap, rssi, propagationModel, n))
self.moveNodeTo(sta, ap, dist, ang[sta])
link(sta, ap, 0, dist)
del sta.rssi[0]
del sta.time[0]
if len(sta.time) == 0:
staList.remove(sta)
time.sleep(0.01)
def updateParams(self, sta, ap, wlan):
"""
Updates values for frequency and channel
:param sta: station
:param ap: access point
:param wlan: wlan ID
"""
sta.params['frequency'][wlan] = link.frequency(ap, 0)
sta.params['channel'][wlan] = ap.params['channel'][0]
def configureAP(self, ap, wlanID=0, aplist=None):
"""Configure AP
:param ap: ap node
:param wlanID: wlan ID
"""
if 'phywlan' in ap.params:
wlanID = 1
for wlan in range(len(ap.params['wlan']) + wlanID):
if wlanID == 1:
wlan = 0
if 'encrypt' in ap.params and 'config' not in ap.params:
if ap.params['encrypt'][wlan] == 'wpa':
ap.auth_algs = 1
ap.wpa = 1
if 'ieee80211r' in ap.params and ap.params[
'ieee80211r'] == 'yes':
ap.wpa_key_mgmt = 'FT-EAP'
else:
ap.wpa_key_mgmt = 'WPA-EAP'
ap.rsn_pairwise = 'TKIP CCMP'
ap.wpa_passphrase = ap.params['passwd'][0]
elif ap.params['encrypt'][wlan] == 'wpa2':
ap.auth_algs = 1
ap.wpa = 2
if 'ieee80211r' in ap.params and ap.params[
'ieee80211r'] == 'yes':
ap.wpa_key_mgmt = 'FT-PSK'
elif 'enable_radius' in ap.params and ap.params[
'enable_radius'] == 'yes':
ap.wpa_key_mgmt = 'WPA-EAP'
else:
ap.wpa_key_mgmt = 'WPA-PSK'
ap.rsn_pairwise = 'CCMP'
if 'enable_radius' not in ap.params or (
'enable_radius' not in ap.params
and ap.params['enable_radius'] != 'yes'):
ap.wpa_passphrase = ap.params['passwd'][0]
elif ap.params['encrypt'][wlan] == 'wep':
ap.auth_algs = 2
ap.wep_key0 = ap.params['passwd'][0]
cls = AccessPoint
cls(ap, wlan=wlan, aplist=aplist)
if 'phywlan' not in ap.params:
iface = ap.params['wlan'][wlan]
else:
iface = ap.params['phywlan']
if not self.useWmediumd:
self.setBw(ap, wlan, iface)
if 'phywlan' in ap.params:
ap.params.pop("phywlan", None)
if ap.func[0] != 'ap':
ap.params['frequency'][wlan] = link.frequency(ap, 0)
link.recordParams(None, ap)
if self.useWmediumd:
if len(ap.params['channel']) == 0:
ap.params['channel'].append(1)
for wlan in range(0, len(ap.params['channel'])):
if ap.params['range'] == 33 or ap.params['range'] == 18:
value = distanceByPropagationModel(ap, wlan)
ap.params['range'] = int(value.dist)
if len(ap.params['ssid']) > 1 and wlan == 0:
break
def pairing(self, node, wlan, nodes):
"""Pairing nodes"""
i = 1
ref_distance = 0
self.dist = 0
alreadyConn = []
for sta_ref in nodes:
if sta_ref != node:
dist = link.getDistance(node, sta_ref)
if dist != 0.0:
totalRange = min(node.params['range'],
sta_ref.params['range'])
if dist < totalRange:
ref_distance = ref_distance + dist
i += 1
for wlan_ref in range(len(sta_ref.params['wlan'])):
if node.params['ssid'][wlan] == sta_ref.params[
'ssid'][wlan_ref]:
if node.params['cell'][wlan] == '':
alreadyConn.append(node)
node.params['associatedTo'][
wlan] = node.params['ssid'][wlan]
node.params['cell'][wlan] = (
'02:CA:FF:EE:BA:0%s' % self.ssid_ID)
iface = node.params['wlan'][wlan]
debug("\nassociating %s to %s..." %
(iface, node.params['ssid'][wlan]))
debug('iwconfig %s essid %s ap 02:CA:FF:EE:BA:0%s' % \
(node.params['wlan'][wlan], node.params['associatedTo'][wlan], self.ssid_ID))
node.pexec('iwconfig %s essid %s ap 02:CA:FF:EE:BA:0%s' % \
(node.params['wlan'][wlan], node.params['associatedTo'][wlan], self.ssid_ID))
node.params['frequency'][
wlan] = link.frequency(node, wlan)
if node.params['cell'][wlan] != sta_ref.params[
'cell'][wlan_ref]:
if sta_ref.params['associatedTo'][
wlan_ref] == node.params['ssid'][
wlan]:
if sta_ref.params['cell'][
wlan_ref] == '' and node in alreadyConn:
alreadyConn.append(sta_ref)
iface = sta_ref.params['wlan'][
wlan_ref]
sta_ref.params['associatedTo'][
wlan_ref] = node.params[
'ssid'][wlan]
sta_ref.params['cell'][
wlan_ref] = (
'02:CA:FF:EE:BA:0%s' %
self.ssid_ID)
debug("\nassociating %s to %s..." %
(iface,
node.params['ssid'][wlan]))
debug('iwconfig %s essid %s ap 02:CA:FF:EE:BA:0%s' % \
(sta_ref.params['wlan'][wlan_ref], sta_ref.params['associatedTo'][wlan_ref], self.ssid_ID))
sta_ref.pexec('iwconfig %s essid %s ap 02:CA:FF:EE:BA:0%s' % \
(sta_ref.params['wlan'][wlan_ref], sta_ref.params['associatedTo'][wlan_ref], self.ssid_ID))
sta_ref.params['frequency'][
wlan_ref] = link.frequency(
sta_ref, wlan_ref)
if alreadyConn != [] and len(alreadyConn) != 1:
for sta_ref in nodes:
if sta_ref not in alreadyConn:
if sta_ref.params['cell'][wlan_ref] == node.params['cell'][
wlan]:
sta_ref.params['cell'][wlan_ref] = ''
self.ssid_ID += 1
self.dist = ref_distance / i
return self.dist