# test
import pcap
import time
MAC_BROADCAST = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ]
MAC_LAPTOP = [0xdc, 0x0e, 0xa1, 0x11, 0x67, 0x08 ]
MAC_RANDOM = [0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff ]
MAC_ALPI = [0x0A, 0x19, 0x4A, 0x39, 0xD6, 0x98 ] # alpitronics
MAC_TPLINK_E4 = [0x98, 0x48, 0x27, 0x5A, 0x3C, 0xE4 ] # TPlink PLC adaptor
MAC_TPLINK_E6 = [0x98, 0x48, 0x27, 0x5A, 0x3C, 0xE6 ] # TPlink PLC adaptor
MAC_DEVOLO_26 = [0xBC, 0xF2, 0xAF, 0x0B, 0x8E, 0x26 ] # Devolo PLC adaptor
MAC_IPv6MCAST1 = [0x33, 0x33, 0x00, 0x00, 0x00, 0x01 ] # IPv6 multicast MAC
MAC_RANDCAR = [0x04, 0x65, 0x65, 0x00, 0xaf, 0xfe ] # random hyundai car
class tester():
def cleanTransmitBuffer(self): # fill the complete ethernet transmit buffer with 0x00
for i in range(0, len(self.mytransmitbuffer)):
self.mytransmitbuffer[i]=0
def fillSourceMac(self, mac, offset=6): # at offset 6 in the ethernet frame, we have the source MAC
# we can give a different offset, to re-use the MAC also in the data area
for i in range(0, 6):
self.mytransmitbuffer[offset+i]=mac[i]
def fillDestinationMac(self, mac, offset=0): # at offset 0 in the ethernet frame, we have the destination MAC
# we can give a different offset, to re-use the MAC also in the data area
for i in range(0, 6):
self.mytransmitbuffer[offset+i]=mac[i]
def sendTestFrame1(self):
self.mytransmitbuffer = bytearray(72)
self.cleanTransmitBuffer()
# Destination MAC
self.fillDestinationMac(MAC_IPv6MCAST1)
# Source MAC
self.fillSourceMac(MAC_RANDCAR)
# Protocol
self.mytransmitbuffer[12]=0x86 # IPv6
self.mytransmitbuffer[13]=0xdd
self.mytransmitbuffer[14]=0x60 #
self.mytransmitbuffer[15]=0x00 #
self.mytransmitbuffer[16]=0x00 #
self.mytransmitbuffer[17]=0x00 #
self.mytransmitbuffer[18]=0x00 # len 2 bytes
self.mytransmitbuffer[19]=0x12 #
self.mytransmitbuffer[20]=0x11 # next is UDP
self.mytransmitbuffer[21]=0x0A # hop limit
self.mytransmitbuffer[22]=0xfe # 22 to 37 ip source address
self.mytransmitbuffer[23]=0x80 # 22 to 37 ip source address
self.mytransmitbuffer[24]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[25]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[26]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[27]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[28]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[29]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[30]=0x06 # 22 to 37 ip source address
self.mytransmitbuffer[31]=0x65 # 22 to 37 ip source address
self.mytransmitbuffer[32]=0x65 # 22 to 37 ip source address
self.mytransmitbuffer[33]=0xff # 22 to 37 ip source address
self.mytransmitbuffer[34]=0xfe # 22 to 37 ip source address
self.mytransmitbuffer[35]=0x00 # 22 to 37 ip source address
self.mytransmitbuffer[36]=0x64 # 22 to 37 ip source address
self.mytransmitbuffer[37]=0xc3 # 22 to 37 ip source address
self.mytransmitbuffer[38]=0xff # 38 to 53 ip destination address
self.mytransmitbuffer[39]=0x02 # 38 to 53 ip destination address
self.mytransmitbuffer[53]=0x01 # 38 to 53 ip destination address
self.mytransmitbuffer[54]=0xcc # source port
self.mytransmitbuffer[55]=0xab
self.mytransmitbuffer[56]=0x3b # dest port
self.mytransmitbuffer[57]=0x0e
self.mytransmitbuffer[58]=0x00 # length
self.mytransmitbuffer[59]=0x12
self.mytransmitbuffer[60]= 0x89 # checksum
self.mytransmitbuffer[61]= 0x62
self.mytransmitbuffer[62]= 0x01
self.mytransmitbuffer[63]= 0xFE
self.mytransmitbuffer[64]= 0x90
self.mytransmitbuffer[65]= 0x00
self.mytransmitbuffer[66]= 0x00
self.mytransmitbuffer[67]= 0x00
self.mytransmitbuffer[68]= 0x00
self.mytransmitbuffer[69]= 0x02
self.mytransmitbuffer[70]= 0x10
self.mytransmitbuffer[71]= 0x00
self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
print("transmitted test frame 1")
def findEthernetAdaptor(self):
self.strInterfaceName="eth0" # default, if the real is not found
print("Interfaces:\n" + '\n'.join(pcap.findalldevs()))
for i in range(0, 10):
strInterfaceName = pcap.ex_name("eth"+str(i))
if (strInterfaceName == '\\Device\\NPF_{E4B8176C-8516-4D48-88BC-85225ABCF259}'):
print("This is the wanted Ethernet adaptor.")
self.strInterfaceName="eth"+str(i)
print("eth"+ str(i) + " is " + strInterfaceName)
def __init__(self):
self.mytransmitbuffer = bytearray("Hallo das ist ein Test", 'UTF-8')
self.nPacketsReceived = 0
#self.sniffer = pcap.pcap(name=None, promisc=True, immediate=True, timeout_ms=50)
# eth3 means: Third entry from back, in the list of interfaces, which is provided by pcap.findalldevs.
# Improvement necessary: select the interface based on the name.
# For debugging of the interface names, we can patch the file
# C:\Users\uwemi\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\pcap\_pcap_ex.py,
# in the function
# def name(name: bytes) -> bytes:
# in the place after
# if i == idx:
# print("index match at " + str(i) + " dev name=" + str(dev.name) + " dev.description=" + str(dev.description))
# This will print the description of the used interface.
#
# Patch for non-blocking read-iteration:
# in _pcap.py, function def __next__(self), in the case of timeout (if n==0), we need to "raise StopIteration" instead of "continue".
#
self.findEthernetAdaptor()
self.sniffer = pcap.pcap(name=self.strInterfaceName, promisc=True, immediate=True, timeout_ms=50)
self.sniffer.setnonblock(True)
print("sniffer created at " + self.strInterfaceName)
def mainfunction(self):
# print("will evaluate self.sniffer")
for ts, pkt in self.sniffer: # attention: for using this in non-blocking manner, we need the patch described above.
self.nPacketsReceived+=1
# print('%d' % (ts)) # the time stamp
def close(self):
self.sniffer.close()
t=tester()
print(256 ** 2)
for i in range(0, 100):
t.sendTestFrame1()
time.sleep(0.5)
t.close()