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added random mac transmission

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uhi22 2022-11-21 09:55:55 +01:00
parent 6fd0f72666
commit 0c226eb8f6
1 changed files with 36 additions and 0 deletions
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36
pyPlcHomeplug.py
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@ -150,6 +150,37 @@ class pyPlcHomeplug():
self.mytransmitbuffer[18]=0xB0 # self.mytransmitbuffer[18]=0xB0 #
self.mytransmitbuffer[19]=0x52 # self.mytransmitbuffer[19]=0x52 #
def composeGetSwWithRamdomMac(self):
# GET_SW.REQ request, as used by the win10 laptop
self.mytransmitbuffer = bytearray(60)
self.cleanTransmitBuffer()
# Destination MAC
self.fillDestinationMac(MAC_BROADCAST)
# Source MAC
self.fillSourceMac(self.myMAC)
# patch the lower three bytes of the MAC with a random value
self.mytransmitbuffer[8] = self.randomMac & 0xff
self.mytransmitbuffer[9] = (self.randomMac>>16) & 0xff
self.mytransmitbuffer[10] = (self.randomMac>>8) & 0xff
self.mytransmitbuffer[11] = self.randomMac & 0xff
if (1):
if ((self.randomMac%16)==0):
self.fillSourceMac([0xb8, 0x27, 0xeb, 0xa3, 0xaf, 0x34 ])
if ((self.randomMac%16)==1):
self.fillSourceMac([0xb8, 0x27, 0xeb, 0x72, 0x66, 0x06 ])
self.randomMac += 1 # new MAC for the next round
# Protocol
self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
self.mytransmitbuffer[13]=0xE1
self.mytransmitbuffer[14]=0x00 # version
self.mytransmitbuffer[15]=0x00 # GET_SW.REQ
self.mytransmitbuffer[16]=0xA0 #
self.mytransmitbuffer[17]=0x00 # Vendor OUI
self.mytransmitbuffer[18]=0xB0 #
self.mytransmitbuffer[19]=0x52 #
def composeSetKey(self, variation=0): def composeSetKey(self, variation=0):
# CM_SET_KEY.REQ request # CM_SET_KEY.REQ request
# From example trace from catphish https://openinverter.org/forum/viewtopic.php?p=40558&sid=9c23d8c3842e95c4cf42173996803241#p40558 # From example trace from catphish https://openinverter.org/forum/viewtopic.php?p=40558&sid=9c23d8c3842e95c4cf42173996803241#p40558
@ -481,6 +512,10 @@ class pyPlcHomeplug():
self.composeGetKey() self.composeGetKey()
self.addToTrace("transmitting GET_KEY") self.addToTrace("transmitting GET_KEY")
self.transmit(self.mytransmitbuffer) self.transmit(self.mytransmitbuffer)
if (selection=="M"):
self.composeGetSwWithRamdomMac()
self.addToTrace("transmitting GetSwWithRamdomMac")
self.transmit(self.mytransmitbuffer)
def transmit(self, pkt): def transmit(self, pkt):
self.sniffer.sendpacket(bytes(pkt)) self.sniffer.sendpacket(bytes(pkt))
@ -841,6 +876,7 @@ class pyPlcHomeplug():
self.callbackShowStatus = callbackShowStatus self.callbackShowStatus = callbackShowStatus
self.callbackReadyForTcp = callbackReadyForTcp self.callbackReadyForTcp = callbackReadyForTcp
self.addressManager = addrMan self.addressManager = addrMan
self.randomMac = 0
self.pevSequenceState = 0 self.pevSequenceState = 0
self.pevSequenceCyclesInState = 0 self.pevSequenceCyclesInState = 0
self.numberOfSoftwareVersionResponses = 0 self.numberOfSoftwareVersionResponses = 0