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improved name consistency. Added auto response to slac_param.

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uhi22 2022-10-18 20:59:22 +02:00
parent b93727f011
commit a5161a8663
2 changed files with 60 additions and 117 deletions
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2
pyPlc.py
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@ -49,7 +49,7 @@ worker=pyPlcWorker.pyPlcWorker(cbAddToTrace, cbShowStatus)
nMainloops=0 nMainloops=0
nKeystrokes=0 nKeystrokes=0
while lastKey!="x": while lastKey!="x":
time.sleep(.3) # 'do some calculation' time.sleep(.05) # 'do some calculation'
nMainloops+=1 nMainloops+=1
# print(str(nMainloops) + " " + str(nKeystrokes)) # show something in the console window # print(str(nMainloops) + " " + str(nKeystrokes)) # show something in the console window
root.update() root.update()

175
pyPlcHomeplug.py
View file

@ -25,7 +25,13 @@
# we see the LEDs on the adaptor shortly going completely off, completely on, and back to normal state. This # we see the LEDs on the adaptor shortly going completely off, completely on, and back to normal state. This
# is the sign, that the new key was accepted. It means, the # is the sign, that the new key was accepted. It means, the
# adaptor is making a reset, to apply the new key. # adaptor is making a reset, to apply the new key.
# 5. CM_SET_KEY and CM_GET_KEY works also when sent to broadcast address. # 5. CM_SET_KEY and CM_GET_KEY works also when sent to broadcast address. For both, devolo and tpLink.
# 2022-10-18 further tests
# 6. The devolo reports the SLAC_PARAM from the standalone-IONIQ to the wirkshark. Even in the case, when the devolo is paired to a tpLink.
# 7. The tpLink does NOT report the SLAC_PARAM to ethernet. Bad.
# 8. The tpLink has software from 2017, maybe the SLAC was removed at this version.
# 9. Article regarding firmware- and configuration update: https://fitzcarraldoblog.wordpress.com/2020/07/22/updating-the-powerline-adapters-in-my-home-network/
import pcap import pcap
@ -114,23 +120,17 @@ class pyPlcHomeplug():
print("HomePlug protocol") print("HomePlug protocol")
return blIsHomePlug return blIsHomePlug
def fillSourceMac(self, mac): def fillSourceMac(self, mac, offset=6): # at offset 6 in the ethernet frame, we have the source MAC
self.mytransmitbuffer[6]=mac[0] # we can give a different offset, to re-use the MAC also in the data area
self.mytransmitbuffer[7]=mac[1] for i in range(0, 6):
self.mytransmitbuffer[8]=mac[2] self.mytransmitbuffer[offset+i]=mac[i]
self.mytransmitbuffer[9]=mac[3]
self.mytransmitbuffer[10]=mac[4]
self.mytransmitbuffer[11]=mac[5]
def fillDestinationMac(self, mac): def fillDestinationMac(self, mac, offset=0): # at offset 0 in the ethernet frame, we have the destination MAC
self.mytransmitbuffer[0]=mac[0] # we can give a different offset, to re-use the MAC also in the data area
self.mytransmitbuffer[1]=mac[1] for i in range(0, 6):
self.mytransmitbuffer[2]=mac[2] self.mytransmitbuffer[offset+i]=mac[i]
self.mytransmitbuffer[3]=mac[3]
self.mytransmitbuffer[4]=mac[4]
self.mytransmitbuffer[5]=mac[5]
def cleanTransmitBuffer(self): def cleanTransmitBuffer(self): # fill the complete ethernet transmit buffer with 0x00
for i in range(0, len(self.mytransmitbuffer)): for i in range(0, len(self.mytransmitbuffer)):
self.mytransmitbuffer[i]=0 self.mytransmitbuffer[i]=0
@ -149,7 +149,7 @@ class pyPlcHomeplug():
# calculates the MMTYPE (base value + lower two bits), see Table 11-2 of homeplug spec # calculates the MMTYPE (base value + lower two bits), see Table 11-2 of homeplug spec
return (self.myreceivebuffer[16]<<8) + self.myreceivebuffer[15] return (self.myreceivebuffer[16]<<8) + self.myreceivebuffer[15]
def composeTestFrameGetSwReq(self): def composeGetSwReq(self):
# GET_SW.REQ request, as used by the win10 laptop # GET_SW.REQ request, as used by the win10 laptop
self.mytransmitbuffer = bytearray(60) self.mytransmitbuffer = bytearray(60)
self.cleanTransmitBuffer() self.cleanTransmitBuffer()
@ -167,7 +167,7 @@ class pyPlcHomeplug():
self.mytransmitbuffer[18]=0xB0 # self.mytransmitbuffer[18]=0xB0 #
self.mytransmitbuffer[19]=0x52 # self.mytransmitbuffer[19]=0x52 #
def composeTestFrameSetKey(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
# Table 11-88 in the homeplug_av21_specification_final_public.pdf # Table 11-88 in the homeplug_av21_specification_final_public.pdf
@ -213,7 +213,7 @@ class pyPlcHomeplug():
self.mytransmitbuffer[41]+=variation # to try different NMKs self.mytransmitbuffer[41]+=variation # to try different NMKs
# and three remaining zeros # and three remaining zeros
def composeTestFrameGetKey(self): def composeGetKey(self):
# CM_GET_KEY.REQ request # CM_GET_KEY.REQ request
# from https://github.com/uhi22/plctool2/blob/master/listen_to_eth.c # from https://github.com/uhi22/plctool2/blob/master/listen_to_eth.c
# and homeplug_av21_specification_final_public.pdf # and homeplug_av21_specification_final_public.pdf
@ -249,25 +249,21 @@ class pyPlcHomeplug():
self.mytransmitbuffer[34]=0x00 # self.mytransmitbuffer[34]=0x00 #
self.mytransmitbuffer[35]=0x00 # 17 PMN Protocol message number self.mytransmitbuffer[35]=0x00 # 17 PMN Protocol message number
def composeTestFrameSlacReq(self): def composeSlacParamReq(self):
# SLAC request, as it was recorded 2021-12-17 WP charger 2 # SLAC_PARAM request, as it was recorded 2021-12-17 WP charger 2
self.mytransmitbuffer = bytearray(60) self.mytransmitbuffer = bytearray(60)
self.cleanTransmitBuffer() self.cleanTransmitBuffer()
# Destination MAC # Destination MAC
self.fillDestinationMac(MAC_BROADCAST) self.fillDestinationMac(MAC_BROADCAST)
# Source MAC # Source MAC
self.fillSourceMac(MAC_IONIQ) self.fillSourceMac(MAC_IONIQ)
# Protocol # Protocol
self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
self.mytransmitbuffer[13]=0xE1 self.mytransmitbuffer[13]=0xE1
self.mytransmitbuffer[14]=0x01 # version self.mytransmitbuffer[14]=0x01 # version
self.mytransmitbuffer[15]=0x64 # SLAC_PARAM.REQ self.mytransmitbuffer[15]=0x64 # SLAC_PARAM.REQ
self.mytransmitbuffer[16]=0x60 # self.mytransmitbuffer[16]=0x60 #
self.mytransmitbuffer[17]=0x00 # self.mytransmitbuffer[17]=0x00 # 2 bytes fragmentation information. 0000 means: unfragmented.
self.mytransmitbuffer[18]=0x00 # self.mytransmitbuffer[18]=0x00 #
self.mytransmitbuffer[19]=0x00 # self.mytransmitbuffer[19]=0x00 #
self.mytransmitbuffer[20]=0x00 # self.mytransmitbuffer[20]=0x00 #
@ -279,103 +275,41 @@ class pyPlcHomeplug():
self.mytransmitbuffer[26]=0xC3 # self.mytransmitbuffer[26]=0xC3 #
self.mytransmitbuffer[27]=0x00 # self.mytransmitbuffer[27]=0x00 #
self.mytransmitbuffer[28]=0x00 # self.mytransmitbuffer[28]=0x00 #
# rest is 00
self.mytransmitbuffer[29]=0x00 # rest is 0 def composeSlacParamCnf(self):
self.mytransmitbuffer[30]=0x00 #
self.mytransmitbuffer[31]=0x00 #
self.mytransmitbuffer[32]=0x00 #
self.mytransmitbuffer[33]=0x00 #
self.mytransmitbuffer[34]=0x00 #
self.mytransmitbuffer[35]=0x00 #
self.mytransmitbuffer[36]=0x00 #
self.mytransmitbuffer[37]=0x00 #
self.mytransmitbuffer[38]=0x00 #
self.mytransmitbuffer[39]=0x00 #
self.mytransmitbuffer[40]=0x00 #
self.mytransmitbuffer[41]=0x00 #
self.mytransmitbuffer[42]=0x00 #
self.mytransmitbuffer[43]=0x00 #
self.mytransmitbuffer[44]=0x00 #
self.mytransmitbuffer[45]=0x00 #
self.mytransmitbuffer[46]=0x00 #
self.mytransmitbuffer[47]=0x00 #
self.mytransmitbuffer[48]=0x00 #
self.mytransmitbuffer[49]=0x00 #
self.mytransmitbuffer[50]=0x00 #
self.mytransmitbuffer[51]=0x00 #
self.mytransmitbuffer[52]=0x00 #
self.mytransmitbuffer[53]=0x00 #
self.mytransmitbuffer[54]=0x00 #
self.mytransmitbuffer[55]=0x00 #
self.mytransmitbuffer[56]=0x00 #
self.mytransmitbuffer[57]=0x00 #
self.mytransmitbuffer[58]=0x00 #
self.mytransmitbuffer[59]=0x00 #
def composeTestFrameSlacResp(self):
self.mytransmitbuffer = bytearray(60) self.mytransmitbuffer = bytearray(60)
self.cleanTransmitBuffer() self.cleanTransmitBuffer()
# Destination MAC # Destination MAC
self.fillDestinationMac(MAC_IONIQ) self.fillDestinationMac(MAC_IONIQ)
# Source MAC # Source MAC
self.fillSourceMac(MAC_ALPI) self.fillSourceMac(MAC_RANDOM)
# Protocol # Protocol
self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
self.mytransmitbuffer[13]=0xE1 self.mytransmitbuffer[13]=0xE1
self.mytransmitbuffer[14]=0x01 # version self.mytransmitbuffer[14]=0x01 # version
self.mytransmitbuffer[15]=0x65 # SLAC_PARAM.confirm self.mytransmitbuffer[15]=0x65 # SLAC_PARAM.confirm
self.mytransmitbuffer[16]=0x60 # self.mytransmitbuffer[16]=0x60 #
self.mytransmitbuffer[17]=0x00 # self.mytransmitbuffer[17]=0x00 # 2 bytes fragmentation information. 0000 means: unfragmented.
self.mytransmitbuffer[18]=0x00 # self.mytransmitbuffer[18]=0x00 #
self.mytransmitbuffer[19]=0xff # self.mytransmitbuffer[19]=0xff # 19-24 sound target
self.mytransmitbuffer[20]=0xff # self.mytransmitbuffer[20]=0xff #
self.mytransmitbuffer[21]=0xff # self.mytransmitbuffer[21]=0xff #
self.mytransmitbuffer[22]=0xff # self.mytransmitbuffer[22]=0xff #
self.mytransmitbuffer[23]=0xff # self.mytransmitbuffer[23]=0xff #
self.mytransmitbuffer[24]=0xff # self.mytransmitbuffer[24]=0xff #
self.mytransmitbuffer[25]=0x0A # self.mytransmitbuffer[25]=0x0A # sound count
self.mytransmitbuffer[26]=0x06 # self.mytransmitbuffer[26]=0x06 # timeout
self.mytransmitbuffer[27]=0x01 # self.mytransmitbuffer[27]=0x01 # resptype
self.mytransmitbuffer[28]=0x04 # self.fillDestinationMac(MAC_IONIQ, 28) # forwarding_sta, same as PEV MAC, plus 2 bytes 00 00
self.mytransmitbuffer[29]=0x65 #
self.mytransmitbuffer[30]=0x65 #
self.mytransmitbuffer[31]=0x00 #
self.mytransmitbuffer[32]=0x64 #
self.mytransmitbuffer[33]=0xC3 #
self.mytransmitbuffer[34]=0x00 # self.mytransmitbuffer[34]=0x00 #
self.mytransmitbuffer[35]=0x00 # self.mytransmitbuffer[35]=0x00 #
self.mytransmitbuffer[36]=0x04 # self.fillDestinationMac(MAC_IONIQ, 36) # runid, same as PEV MAC, plus 2 bytes 00 00
self.mytransmitbuffer[37]=0x65 #
self.mytransmitbuffer[38]=0x65 #
self.mytransmitbuffer[39]=0x00 #
self.mytransmitbuffer[40]=0x64 #
self.mytransmitbuffer[41]=0xC3 #
self.mytransmitbuffer[42]=0x0 # self.mytransmitbuffer[42]=0x0 #
self.mytransmitbuffer[43]=0x0 # self.mytransmitbuffer[43]=0x0 #
self.mytransmitbuffer[44]=0x0 # # rest is 00
self.mytransmitbuffer[45]=0x0 #
self.mytransmitbuffer[46]=0x0 #
self.mytransmitbuffer[47]=0x0 #
self.mytransmitbuffer[48]=0x0 #
self.mytransmitbuffer[49]=0x0 #
self.mytransmitbuffer[50]=0x0 #
self.mytransmitbuffer[51]=0x0 #
self.mytransmitbuffer[52]=0x0 #
self.mytransmitbuffer[53]=0x0 #
self.mytransmitbuffer[54]=0x0 #
self.mytransmitbuffer[55]=0x0 #
self.mytransmitbuffer[56]=0x0 #
self.mytransmitbuffer[57]=0x0 #
self.mytransmitbuffer[58]=0x0 #
self.mytransmitbuffer[59]=0x0 #
def composeTestFrameDHCP(self): def composeDHCP(self):
# DHCP discover, to check whether this "normal" package arrives on the other side # DHCP discover, to check whether this "normal" package arrives on the other side
self.mytransmitbuffer = bytearray(379) self.mytransmitbuffer = bytearray(379)
self.cleanTransmitBuffer() self.cleanTransmitBuffer()
@ -417,32 +351,32 @@ class pyPlcHomeplug():
def sendTestFrame(self, selection): def sendTestFrame(self, selection):
if (selection=="1"): if (selection=="1"):
self.composeTestFrameSlacReq() self.composeSlacParamReq()
self.addToTrace("transmitting TestFrame SlacReq...") self.addToTrace("transmitting SLAC_PARAM.REQ...")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
if (selection=="2"): if (selection=="2"):
self.composeTestFrameSlacResp() self.composeSlacParamCnf()
self.addToTrace("transmitting TestFrame SlacResp...") self.addToTrace("transmitting SLAC_PARAM.CNF...")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
if (selection=="S"): if (selection=="S"):
self.composeTestFrameGetSwReq() self.composeGetSwReq()
self.addToTrace("transmitting TestFrame GetSwReq...") self.addToTrace("transmitting GetSwReq...")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
if (selection=="s"): if (selection=="s"):
self.composeTestFrameSetKey(1) self.composeSetKey(1)
self.addToTrace("transmitting TestFrame SET_KEY.REQ (key 1)") self.addToTrace("transmitting SET_KEY.REQ (key 1)")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
if (selection=="t"): if (selection=="t"):
self.composeTestFrameSetKey(2) self.composeSetKey(2)
self.addToTrace("transmitting TestFrame SET_KEY.REQ (key 2)") self.addToTrace("transmitting SET_KEY.REQ (key 2)")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
if (selection=="D"): if (selection=="D"):
self.composeTestFrameDHCP() self.composeDHCP()
self.addToTrace("transmitting TestFrame broken DHCP") self.addToTrace("transmitting broken DHCP")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
if (selection=="G"): if (selection=="G"):
self.composeTestFrameGetKey() self.composeGetKey()
self.addToTrace("transmitting TestFrame GET_KEY") self.addToTrace("transmitting GET_KEY")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
def evaluateGetKeyCnf(self): def evaluateGetKeyCnf(self):
@ -454,6 +388,13 @@ class pyPlcHomeplug():
s=s+hex(self.NID[i])+ " " s=s+hex(self.NID[i])+ " "
print("From GetKeyCnf, got network ID (NID) " + s) print("From GetKeyCnf, got network ID (NID) " + s)
def evaluateSlacParamReq(self):
# We received a SLAC_PARAM request from the PEV. This is the initiation of a SLAC procedure.
# If we want to emulate an EVSE, we want to answer.
self.composeSlacParamCnf()
self.addToTrace("transmitting CM_SLAC_PARAM.CNF")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
def evaluateSlacMatchCnf(self): def evaluateSlacMatchCnf(self):
# The SLAC_MATCH.CNF contains the NMK and the NID. # The SLAC_MATCH.CNF contains the NMK and the NID.
# We extract this information, so that we can use it for the CM_SET_KEY afterwards. # We extract this information, so that we can use it for the CM_SET_KEY afterwards.
@ -470,7 +411,7 @@ class pyPlcHomeplug():
s=s+hex(self.NMK[i])+ " " s=s+hex(self.NMK[i])+ " "
print("From SlacMatchCnf, got network membership key (NMK) " + s) print("From SlacMatchCnf, got network membership key (NMK) " + s)
# use the extracted NMK and NID to set the key in the adaptor: # use the extracted NMK and NID to set the key in the adaptor:
self.composeTestFrameSetKey(0) self.composeSetKey(0)
self.addToTrace("transmitting CM_SET_KEY.REQ") self.addToTrace("transmitting CM_SET_KEY.REQ")
self.sniffer.sendpacket(bytes(self.mytransmitbuffer)) self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
@ -481,6 +422,8 @@ class pyPlcHomeplug():
self.evaluateGetKeyCnf() self.evaluateGetKeyCnf()
if (mmt == CM_SLAC_MATCH + MMTYPE_CNF): if (mmt == CM_SLAC_MATCH + MMTYPE_CNF):
self.evaluateSlacMatchCnf() self.evaluateSlacMatchCnf()
if (mmt == CM_SLAC_PARAM + MMTYPE_REQ):
self.evaluateSlacParamReq()
def findEthernetAdaptor(self): def findEthernetAdaptor(self):