mirror of
https://github.com/uhi22/pyPLC.git
synced 2024-11-10 01:05:42 +00:00
added extended status, added nid to set_key, made slac complete. Connection to Ioniq works.
This commit is contained in:
uhi22
parent
12764110d5
commit
28a713c32e
3 changed files with 192 additions and 39 deletions
16
pyPlc.py
16
pyPlc.py
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@ -26,8 +26,15 @@ def inkey():
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def cbAddToTrace(s):
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print(s)
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def cbShowStatus(s):
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print(s)
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def cbShowStatus(s, selection=""):
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#print(s)
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if (selection == "mode"):
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lblMode['text']=s
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s=""
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if (selection == "pevmac"):
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lblPevMac['text']=s
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s=""
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if (len(s)>0):
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lblStatus['text']=s
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root.update()
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@ -39,6 +46,11 @@ lblHelp = tk.Label(root, text="x=exit, t=testframe")
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lblHelp.pack()
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lblStatus = tk.Label(root, text="(Status)")
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lblStatus.pack()
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lblPevMac = tk.Label(root, text="(pev mac)")
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lblPevMac.pack()
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lblMode = tk.Label(root, text="(mode)")
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lblMode.pack()
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# Bind the keyboard handler to all relevant elements:
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display.bind('<Key>', storekeyname)
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root.bind('<Key>', storekeyname)
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164
pyPlcHomeplug.py
164
pyPlcHomeplug.py
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@ -46,10 +46,16 @@ def showAsHex(mybytearray):
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strHex = strHex + twoCharHex(mybytearray[i]) + " "
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print("len " + str(packetlength) + " data " + strHex)
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def prettyMac(macByteArray):
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s=""
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for i in range(0, 5):
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s = s + twoCharHex(macByteArray[i]) + ":"
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s = s + twoCharHex(macByteArray[i])
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return s
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MAC_BROADCAST = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ]
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MAC_LAPTOP = [0xdc, 0x0e, 0xa1, 0x11, 0x67, 0x08 ]
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MAC_RANDOM = [0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff ]
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MAC_IONIQ = [0x04, 0x65, 0x65, 0x00, 0x64, 0xC3 ]
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MAC_ALPI = [0x0A, 0x19, 0x4A, 0x39, 0xD6, 0x98 ] # alpitronics
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MAC_TPLINK_E4 = [0x98, 0x48, 0x27, 0x5A, 0x3C, 0xE4 ] # TPlink PLC adaptor
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MAC_TPLINK_E6 = [0x98, 0x48, 0x27, 0x5A, 0x3C, 0xE6 ] # TPlink PLC adaptor
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@ -117,7 +123,7 @@ class pyPlcHomeplug():
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protocol=mybytearray[12]*256 + mybytearray[13]
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if (protocol == 0x88E1):
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blIsHomePlug=True
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print("HomePlug protocol")
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# print("HomePlug protocol")
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return blIsHomePlug
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def fillSourceMac(self, mac, offset=6): # at offset 6 in the ethernet frame, we have the source MAC
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@ -141,7 +147,7 @@ class pyPlcHomeplug():
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def setNidAt(self, index):
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# (b0f2e695666b03 was NID of TPlink)
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# copies the network ID (NID) into the wished position in the transmit buffer
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# copies the network ID (NID, 7 bytes) into the wished position in the transmit buffer
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for i in range(0, 7):
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self.mytransmitbuffer[index+i]=self.NID[i]
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@ -206,7 +212,10 @@ class pyPlcHomeplug():
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self.mytransmitbuffer[30]=0x00 # 11
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self.mytransmitbuffer[31]=0x00 # 12 pmn
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self.mytransmitbuffer[32]=0x00 # 13 cco cap
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#self.setNidAt(33) # 14-20 nid 7 bytes from 33 to 39
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self.setNidAt(33) # 14-20 nid 7 bytes from 33 to 39
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# Network ID to be associated with the key distributed herein.
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# The 54 LSBs of this field contain the NID (refer to Section 3.4.3.1). The
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# two MSBs shall be set to 0b00.
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self.mytransmitbuffer[40]=0x01 # 21 peks (payload encryption key select) Table 11-83. 01 is NMK. We had 02 here, why???
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# with 0x0F we could choose "no key, payload is sent in the clear"
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self.setNmkAt(41)
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@ -256,7 +265,7 @@ class pyPlcHomeplug():
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# Destination MAC
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self.fillDestinationMac(MAC_BROADCAST)
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# Source MAC
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self.fillSourceMac(MAC_IONIQ)
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self.fillSourceMac(self.pevMac)
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# Protocol
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self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
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self.mytransmitbuffer[13]=0xE1
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@ -281,7 +290,7 @@ class pyPlcHomeplug():
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self.mytransmitbuffer = bytearray(60)
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self.cleanTransmitBuffer()
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# Destination MAC
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self.fillDestinationMac(MAC_IONIQ)
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self.fillDestinationMac(self.pevMac)
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# Source MAC
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self.fillSourceMac(MAC_RANDOM)
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# Protocol
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@ -301,14 +310,76 @@ class pyPlcHomeplug():
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self.mytransmitbuffer[25]=0x0A # sound count
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self.mytransmitbuffer[26]=0x06 # timeout
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self.mytransmitbuffer[27]=0x01 # resptype
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self.fillDestinationMac(MAC_IONIQ, 28) # forwarding_sta, same as PEV MAC, plus 2 bytes 00 00
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self.fillDestinationMac(self.pevMac, 28) # forwarding_sta, same as PEV MAC, plus 2 bytes 00 00
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self.mytransmitbuffer[34]=0x00 #
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self.mytransmitbuffer[35]=0x00 #
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self.fillDestinationMac(MAC_IONIQ, 36) # runid, same as PEV MAC, plus 2 bytes 00 00
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self.fillDestinationMac(self.pevMac, 36) # runid, same as PEV MAC, plus 2 bytes 00 00
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self.mytransmitbuffer[42]=0x0 #
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self.mytransmitbuffer[43]=0x0 #
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# rest is 00
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def composeAttenCharInd(self):
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self.mytransmitbuffer = bytearray(129)
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self.cleanTransmitBuffer()
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# Destination MAC
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self.fillDestinationMac(self.pevMac)
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# Source MAC
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self.fillSourceMac(MAC_RANDOM)
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# Protocol
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self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
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self.mytransmitbuffer[13]=0xE1
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self.mytransmitbuffer[14]=0x01 # version
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self.mytransmitbuffer[15]=0x6E # ATTEN_CHAR.IND
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self.mytransmitbuffer[16]=0x60 #
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self.mytransmitbuffer[17]=0x00 # 2 bytes fragmentation information. 0000 means: unfragmented.
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self.mytransmitbuffer[18]=0x00 #
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self.mytransmitbuffer[19]=0x00 # apptype
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self.mytransmitbuffer[20]=0x00 # security
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self.fillDestinationMac(self.pevMac, 21) # The wireshark calls it source_mac, but alpitronic fills it with PEV mac. We use the PEV MAC.
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self.fillDestinationMac(self.pevMac, 27) # runid. The alpitronic fills it with the PEV mac, plus 00 00.
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self.mytransmitbuffer[35]=0x00 # 35 - 51 source_id, 17 bytes. The alpitronic fills it with 00
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self.mytransmitbuffer[52]=0x00 # 52 - 68 response_id, 17 bytes. The alpitronic fills it with 00.
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self.mytransmitbuffer[69]=0x0A # Number of sounds. 10 in normal case. Should this be more flexible, e.g. using the counter from first MNBC_SOUND?
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self.mytransmitbuffer[70]=0x3A # Number of groups = 58. Should this be more flexible?
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for i in range(71, 129): # 71 to 128: The group attenuation for the 58 announced groups.
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self.mytransmitbuffer[i]=9 # Typical values are between 1 and 0x19. Since we have no real measurements from the AR7020,
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# we just simulate something. 0 seems to be interpreted as "defect", the IONIQ does not send
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# a positive response in this case.
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# higher attenuation for the higher frequencies, to be a little bit realistic (real data from alpitronic trace)
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self.mytransmitbuffer[126]=0x0f
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self.mytransmitbuffer[127]=0x13
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self.mytransmitbuffer[128]=0x19
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def composeSlacMatchCnf(self):
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self.mytransmitbuffer = bytearray(109)
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self.cleanTransmitBuffer()
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# Destination MAC
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self.fillDestinationMac(self.pevMac)
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# Source MAC
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self.fillSourceMac(MAC_RANDOM)
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# Protocol
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self.mytransmitbuffer[12]=0x88 # Protocol HomeplugAV
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self.mytransmitbuffer[13]=0xE1
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self.mytransmitbuffer[14]=0x01 # version
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self.mytransmitbuffer[15]=0x7D # SLAC_MATCH.CNF
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self.mytransmitbuffer[16]=0x60 #
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self.mytransmitbuffer[17]=0x00 # 2 bytes fragmentation information. 0000 means: unfragmented.
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self.mytransmitbuffer[18]=0x00 #
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self.mytransmitbuffer[19]=0x00 # apptype
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self.mytransmitbuffer[20]=0x00 # security
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self.mytransmitbuffer[21]=0x56 # length 2 byte
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self.mytransmitbuffer[22]=0x00 #
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# 23 - 39: pev_id 17 bytes. All zero in alpi/Ioniq trace.
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self.fillDestinationMac(self.pevMac, 40) # 40 - 45 pev_mac
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# 46 - 62: evse_id 17 bytes. All zero in alpi/Ioniq trace.
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self.fillSourceMac(MAC_RANDOM, 63) # 63 - 68 evse_mac
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self.fillDestinationMac(self.pevMac, 69) # 69-76 run_id. Is the ioniq mac plus 00 00.
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# 77 to 84 reserved 0
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self.setNidAt(85) # 85-91 NID. We can nearly freely choose this, but the upper two bits need to be zero
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# 92 reserved 0
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self.setNmkAt(93) # 93 to 108 NMK. We can freely choose this. Normally we should use a random number.
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def composeDHCP(self):
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# DHCP discover, to check whether this "normal" package arrives on the other side
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self.mytransmitbuffer = bytearray(379)
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@ -363,8 +434,8 @@ class pyPlcHomeplug():
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self.addToTrace("transmitting GetSwReq...")
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self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
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if (selection=="s"):
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self.composeSetKey(1)
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self.addToTrace("transmitting SET_KEY.REQ (key 1)")
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self.composeSetKey(0)
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self.addToTrace("transmitting SET_KEY.REQ (key 0)")
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self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
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if (selection=="t"):
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self.composeSetKey(2)
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@ -383,25 +454,66 @@ class pyPlcHomeplug():
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# The getkey response contains the Network ID (NID), even if the request was rejected. We store the NID,
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# to have it available for the next request.
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s = ""
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for i in range(0, 7):
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for i in range(0, 7): # NID has 7 bytes
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self.NID[i] = self.myreceivebuffer[29+i]
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s=s+hex(self.NID[i])+ " "
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print("From GetKeyCnf, got network ID (NID) " + s)
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def evaluateSetKeyCnf(self):
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# The Setkey confirmation
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# In spec, the result 0 means "success". But in reality, the 0 means: did not work. When it works,
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# then the LEDs are blinking (device is restarting), and the response is 1.
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result = self.myreceivebuffer[19]
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if (result == 0):
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self.addToTrace("SetKeyCnf says 0, this is a bad sign")
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else:
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self.addToTrace("SetKeyCnf says " + str(result) + ", this is formally 'rejected', but indeed ok.")
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def evaluateSlacParamReq(self):
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# We received a SLAC_PARAM request from the PEV. This is the initiation of a SLAC procedure.
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# We extract the pev MAC from it.
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for i in range(0, 6):
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self.pevMac[i] = self.myreceivebuffer[6+i]
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self.showStatus(prettyMac(self.pevMac), "pevmac")
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# If we want to emulate an EVSE, we want to answer.
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if (self.iAmEvse==1):
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self.composeSlacParamCnf()
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self.addToTrace("transmitting CM_SLAC_PARAM.CNF")
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self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
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def evaluateMnbcSoundInd(self):
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# We received MNBC_SOUND.IND from the PEV. Normally this happens 10times, with a countdown (remaining number of sounds)
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# running from 9 to 0. If the countdown is 0, this is the last message. In case we are the EVSE, we need
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# to answer with a ATTEN_CHAR.IND, which normally contains the attenuation for 10 sounds, 58 groups.
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if (self.iAmEvse==1):
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countdown = self.myreceivebuffer[38]
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if (countdown == 0):
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self.composeAttenCharInd()
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self.addToTrace("transmitting ATTEN_CHAR.IND")
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self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
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def evaluateSlacMatchReq(self):
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# We received SLAC_MATCH.REQ from the PEV.
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# If we are EVSE, we send the response.
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if (self.iAmEvse==1):
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self.composeSlacMatchCnf()
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self.addToTrace("transmitting SLAC_MATCH.CNF")
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self.sniffer.sendpacket(bytes(self.mytransmitbuffer))
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def evaluateSlacMatchCnf(self):
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# The SLAC_MATCH.CNF contains the NMK and the NID.
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# We extract this information, so that we can use it for the CM_SET_KEY afterwards.
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# References: https://github.com/qca/open-plc-utils/blob/master/slac/evse_cm_slac_match.c
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# 2021-12-16_HPC_säule1_full_slac.pcapng
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if (self.iAmEvse==1):
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# If we are EVSE, nothing to do. We have sent the match.CNF by our own.
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# The SET_KEY was already done at startup.
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pass
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else:
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s = ""
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for i in range(0, 7):
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for i in range(0, 7): # NID has 7 bytes
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self.NID[i] = self.myreceivebuffer[85+i]
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s=s+hex(self.NID[i])+ " "
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print("From SlacMatchCnf, got network ID (NID) " + s)
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@ -420,10 +532,16 @@ class pyPlcHomeplug():
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print(hex(mmt))
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if (mmt == CM_GET_KEY + MMTYPE_CNF):
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self.evaluateGetKeyCnf()
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if (mmt == CM_SLAC_MATCH + MMTYPE_REQ):
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self.evaluateSlacMatchReq()
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if (mmt == CM_SLAC_MATCH + MMTYPE_CNF):
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self.evaluateSlacMatchCnf()
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if (mmt == CM_SLAC_PARAM + MMTYPE_REQ):
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self.evaluateSlacParamReq()
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if (mmt == CM_MNBC_SOUND + MMTYPE_IND):
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self.evaluateMnbcSoundInd()
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if (mmt == CM_SET_KEY + MMTYPE_CNF):
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self.evaluateSetKeyCnf()
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def findEthernetAdaptor(self):
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@ -436,6 +554,19 @@ class pyPlcHomeplug():
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self.strInterfaceName="eth"+str(i)
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print("eth"+ str(i) + " is " + strInterfaceName)
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def enterPevMode(self):
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self.iAmEvse = 0 # not emulating a charging station
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self.iAmPev = 1 # emulating a vehicle
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self.showStatus("PEV mode", "mode")
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def enterEvseMode(self):
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self.iAmEvse = 1 # not emulating a charging station
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self.iAmPev = 0 # emulating a vehicle
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self.showStatus("EVSE mode", "mode")
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def enterListenMode(self):
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self.iAmEvse = 0 # not emulating a charging station
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self.iAmPev = 0 # emulating a vehicle
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self.showStatus("LISTEN mode", "mode")
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def __init__(self, callbackAddToTrace=None, callbackShowStatus=None):
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self.mytransmitbuffer = bytearray("Hallo das ist ein Test", 'UTF-8')
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self.nPacketsReceived = 0
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@ -461,20 +592,23 @@ class pyPlcHomeplug():
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self.sniffer.setnonblock(True)
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self.NMK = [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 ] # a default network key
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self.NID = [ 1, 2, 3, 4, 5, 6, 7 ] # a default network ID
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self.pevMac = [0x55, 0x56, 0x57, 0x58, 0x59, 0x5A ] # a default pev MAC
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self.runningCounter=0
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self.enterEvseMode()
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self.showStatus(prettyMac(self.pevMac), "pevmac")
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print("sniffer created at " + self.strInterfaceName)
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def addToTrace(self, s):
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self.callbackAddToTrace(s)
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def showStatus(self, s):
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self.callbackShowStatus(s)
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def showStatus(self, s, selection=""):
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self.callbackShowStatus(s, selection)
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def mainfunction(self):
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# print("will evaluate self.sniffer")
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for ts, pkt in self.sniffer: # attention: for using this in non-blocking manner, we need the patch described above.
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self.nPacketsReceived+=1
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print('%d' % (ts))
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# print('%d' % (ts)) # the time stamp
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if (self.isHomeplug(pkt)):
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self.myreceivebuffer = pkt
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# self.showMacAddresses(pkt)
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@ -18,8 +18,8 @@ class pyPlcWorker():
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def addToTrace(self, s):
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self.callbackAddToTrace(s)
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def showStatus(self, s):
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self.callbackShowStatus(s)
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def showStatus(self, s, selection = ""):
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self.callbackShowStatus(s, selection)
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def mainfunction(self):
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self.nMainFunctionCalls+=1
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@ -28,6 +28,13 @@ class pyPlcWorker():
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def handleUserAction(self, strAction):
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self.strUserAction = strAction
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if (strAction == "P"):
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self.hp.enterPevMode()
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if (strAction == "E"):
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self.hp.enterEvseMode()
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if (strAction == "L"):
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self.hp.enterListenMode()
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self.addToTrace("UserAction " + strAction)
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self.hp.sendTestFrame(strAction)
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