def test_attach_kwargs(self):
"""Ensure attach takes kwargs as advertised"""
mem = sysv_ipc.SharedMemory(None, sysv_ipc.IPC_CREX)
mem.write('hello world')
mem.detach()
mem2 = sysv_ipc.attach(mem.id, flags=0)
mem2.detach()
mem.remove()
def main():
raw_sock = socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(0x0003)) # 0x0003 = ETH_P_ALL
gtp_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
shm_addr = sysv_ipc.SharedMemory(9487, sysv_ipc.IPC_CREAT , 0666 , 4096)
TEID_IP_mapping = sysv_ipc.attach(shm_addr.id)
eth_length = 14
ip_length = 20
seq = 0
header_length = eth_length + ip_length
cnt = 0
#print 'start'
while True :
packet = raw_sock.recvfrom(8192)[0]
#print "start time: ", datetime.now().microsecond/1000.0
header = struct.unpack("!6s6s2sBBHHHBBH4s4s", packet[:header_length])
#if header[0][0:6] == b'\x9c\x5c\x8e\xbb\x7d\x06': # link layer MAC address
if 1:
src_ip = socket.inet_ntoa(header[11])
des_ip = socket.inet_ntoa(header[12])
if(des_ip[0:7] == "192.188"): # UE subnet prefix
tunnel = find_TEID(TEID_IP_mapping, des_ip)
#print tunnel
if tunnel == -1:
print "tunnel not found"
else:
print ("From: {0} -> To {1}".format(src_ip, des_ip))
ip_packet = packet[eth_length:]
#print "start time: ", datetime.now().microsecond/1000.0, ", ", datetime.now(), ", len=", len(packet)
isSup, new_packet, protocol = src_ip_spoof(ip_packet)
if isSup :
print "Add GTP header, protocol: {0}".format(protocol)
#gtp_header = struct.pack("!BBHL",56,255,len(new_packet),3396329693)
gtp_header = struct.pack("!BBHL",56,255,len(new_packet),int(tunnel))
packet = gtp_header + new_packet
#print "end time: ", datetime.now().microsecond/1000.0, ", ", datetime.now(), ", len=", len(packet)
gtp_sock.sendto( packet,("10.0.0.4", 2152))
#print "Return to user..."
else:
print "not Sup"
pass
else:
pass
def main():
LOCAL_IP = "10.0.1.3"
eNB_IP = "10.0.0.4"
eNB_PORT = 2152
gtp_length = 8
ip_length = 20
#recive the traffic
ListenSock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
ListenSock.bind((LOCAL_IP, 2152))
#send the traffic
ForwardSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# allocate shm
shm_addr = sysv_ipc.SharedMemory(9487, sysv_ipc.IPC_CREAT, 0666, 4096)
TEID_ip_mapping = sysv_ipc.attach(shm_addr.id)
#sysv_ipc.remove_shared_memory()
while True:
#print 'start'
gtp_pkg, addr = ListenSock.recvfrom(2048)
gtp_header = struct.unpack("!BBHL", gtp_pkg[:gtp_length])
ip_packet = gtp_pkg[gtp_length:]
ip_header = struct.unpack("BBHHHBBH4s4s", ip_packet[:ip_length])
TEID = str(gtp_header[3])
dst_ip = socket.inet_ntoa(ip_header[9])
src_ip = socket.inet_ntoa(ip_header[8])
#print "{0} -> {1}".format(src_ip,dst_ip)
'''if 'application/octet-stream' in gtp_pkg:#'HTTP/1.1 200 OK':
print "mpd start forward time: {0}".format(datetime.now())
if '</MPD>' in gtp_pkg:
print "mpd end forward time: {0}".format(datetime.now())
if 'video/x-m4v' in gtp_pkg:
print "x-m4v forward time: {0}".format(datetime.now())
if 'audio/x-m4a' in gtp_pkg:
print "x-m4a forward time: {0}".format(datetime.now())'''
# write to shm on downlink traffic
res = write_dl_mapping_list(TEID_ip_mapping, TEID, dst_ip)
#print res
ForwardSocket.sendto(gtp_pkg, (eNB_IP, eNB_PORT))
def test_attach(self):
"""Exercise attach()"""
# Create memory, write something to it, then detach
mem = sysv_ipc.SharedMemory(None, sysv_ipc.IPC_CREX)
mem.write('hello world')
mem.detach()
self.assertFalse(mem.attached)
self.assertEqual(mem.number_attached, 0)
# Reattach memory via a different SharedMemory instance
mem2 = sysv_ipc.attach(mem.id)
self.assertFalse(mem.attached)
self.assertTrue(mem2.attached)
self.assertEqual(mem.number_attached, 1)
self.assertEqual(mem2.number_attached, 1)
self.assertEqual(mem2.read(len('hello world')), b'hello world')
mem2.detach()
mem.remove()
self.assertRaises(sysv_ipc.ExistentialError, sysv_ipc.SharedMemory, mem.key)
def attach_afl_map_shm(shm_env_var=None):
shm_env_var = shm_env_var or DEFAULT_SHM_ENV_VAR
shm = sysv_ipc.attach(int(os.environ[shm_env_var]))
shm.write(b"\x01", offset=0)
return shm
if (self.airtemp(plane_index) < -100
or self.airtemp(plane_index) > 50):
#print "Fail on temp", self.airtemp(plane_index)
return False
#49 < lat < 54 [deg] ##CHANGE PER CURRENT LOCATION
#0.0 < lon < 10 [deg] ##CHANGE PER CURRENT LOCATION
if (self.planes[plane_index].lat < -180
or self.planes[plane_index].lon < -90):
return False
return True
with open('mds02.log') as f:
for line in f:
if 'SHM_ID=' in line:
shm_id = int(line[18:-4])
#print 'Ident, Latitude, Longitude, Altitude / ft, T / °C'
shm = sysv_ipc.attach(shm_id)
at = AircraftTemp(shm)
for idx, ac in enumerate(at.getPlanes()):
if at.filter(idx):
with open('mds02.csv', 'a') as c:
csv.writer(c).writerow([
datetime.utcnow().isoformat(), ac.acident, ac.lat,
ac.lon, ac.alt,
at.airtemp(idx), ac.hdg, ac.ias, ac.tas, ac.sogc,
ac.bds.mach_60, ac.bds.hdg_60, ac.bds.ias_60,
ac.bds.tas_50
])