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card_programming.py
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# -*- coding: utf-8 -*-
# Plugin to program keys on Megane II
# (c) 2017
# This is an example plugin
import PyQt5.QtCore as core
import PyQt5.QtWidgets as gui
import ecu
import options
_ = options.translator('ddt4all')
plugin_name = _("Megane/Scenic II card programming")
category = _("Keys")
need_hw = True
ecufile = "UCH_84_J84_03_60"
a8_mess = [19, 29, 39, 4, 24, 46, 31, 12,
16, 28, 7, 10, 15, 0, 40, 26,
18, 20, 3, 8, 34, 8, 47, 21,
2, 25, 38, 6, 4, 22, 14, 33,
17, 1, 44, 11, 32, 41, 36, 42,
5, 45, 5, 43, 30, 37, 13, 27]
a8_xor = [0x10, 0x20, 0x20, 0x10, 0x81, 0x88]
a8_xor_2 = [0x10, 0x20, 0x28, 0x10, 0x81, 0x88]
def a8(isk_c):
'''MC9S12DG256 (Megane 2, Scenic 2)'''
apv = ''
isk = isk_c.replace(' ', '').decode('hex')
if len(isk) != 6:
return None
bit_i = ''
for c in isk:
bit_i += bin(ord(c))[2:].zfill(8)
# if not (bit_i[ 4]!=bit_i[23] and bit_i[12]==bit_i[43] and
# bit_i[ 4]==bit_i[35] and bit_i[ 8]==bit_i[ 9] and bit_i[ 4]==bit_i[ 5]):
# return 'Invalid ISK'
base = ''
for b in a8_xor:
base = base + bin(b)[2:].zfill(8)
i = 0
for b in base:
z = bit_i[a8_mess[i]]
if b != z:
z = '1'
else:
z = '0'
base = base[:i] + z + base[i + 1:]
i += 1
for i in range(0, 6):
apv += hex(int(base[i * 8:i * 8 + 8], 2))[2:].zfill(2).upper() + ' '
return apv
def a8_2(isk_c):
'''MC9S12DG256 (algo2)(Megane 2, Scenic 2)'''
apv = ''
isk = isk_c.replace(' ', '').decode('hex')
if len(isk) != 6:
return None
bit_i = ''
for c in isk:
bit_i += bin(ord(c))[2:].zfill(8)
base = ''
for b in a8_xor_2:
base = base + bin(b)[2:].zfill(8)
i = 0
for b in base:
z = bit_i[a8_mess[i]]
if b != z:
z = '1'
else:
z = '0'
base = base[:i] + z + base[i + 1:]
i += 1
for i in range(0, 6):
apv += hex(int(base[i * 8:i * 8 + 8], 2))[2:].zfill(2).upper() + ' '
return apv
def get_isk(ecu_response):
ecu_response = ecu_response.replace(' ', '').strip()
return ecu_response[19 * 2:25 * 2]
class CardProg(gui.QDialog):
def __init__(self):
super(CardProg, self).__init__()
options.debug = True
self.apvok = False
self.megane_ecu = ecu.Ecu_file(ecufile, True)
self.start_session_request = self.megane_ecu.requests[u'Start Diagnostic Session']
self.after_sale_request = self.megane_ecu.requests[u'ACCEDER AU MODE APRES-VENTE']
self.learn_key_request = self.megane_ecu.requests[u'APPRENDRE BADGE']
self.key_bits_status = self.megane_ecu.requests[u'Status général des opérations badges Bits']
self.key_bytes_status = self.megane_ecu.requests[u'Status général des opérations badges Octets']
self.reserved_frame_request = self.megane_ecu.requests[u'Trame AB: Trame réservée']
self.learn_validate_request = self.megane_ecu.requests[u'SORTIE DU MODE APV : VALIDATION']
self.learn_cancel_request = self.megane_ecu.requests[u'SORTIE DU MODE APV : ABANDON']
self.ecu_connect()
self.start_diag_session()
self.apv_access_button = gui.QPushButton(_("ENTER AFTER SALE MODE"))
self.apv_access_button.clicked.connect(self.set_apv_from_input)
self.pininput = gui.QLineEdit()
self.pininput.setText("0" * 12)
self.pininput.setInputMask("H" * 12)
self.iskoutput = gui.QLineEdit()
self.iskoutput.setInputMask("H" * 12)
self.numkeys_label = gui.QLabel("0")
self.currentcardide = gui.QLineEdit()
self.currentcardide.setReadOnly(True)
self.apv_status = gui.QLabel("")
self.apv_status.setAlignment(core.Qt.AlignHCenter)
label = gui.QLabel(_("<font color='red'>MEGANE II CARD PROGRAMMING<br>EXPERIMENTAL : NOT TESTED YET</font>"))
label.setAlignment(core.Qt.AlignHCenter)
self.learnbutton = gui.QPushButton(_("LEARN"))
self.validatebutton = gui.QPushButton(_("VALIDATE"))
self.cancelbutton = gui.QPushButton(_("CANCEL"))
self.algocheck = gui.QCheckBox(_("Algo 2"))
self.algocheck.setChecked(False)
self.learnbutton.clicked.connect(self.learn_action)
self.validatebutton.clicked.connect(self.validate_action)
self.cancelbutton.clicked.connect(self.cancel_action)
self.iskoutput.textChanged.connect(self.calculate_pin)
self.algocheck.toggled.connect(self.calculate_pin)
layout = gui.QGridLayout()
layout.addWidget(label, 0, 0, 1, 0)
layout.addWidget(gui.QLabel(_("ISK")), 1, 0)
layout.addWidget(self.iskoutput, 1, 1)
layout.addWidget(gui.QLabel(_("PIN")), 2, 0)
layout.addWidget(self.pininput, 2, 1)
layout.addWidget(self.algocheck, 3, 1)
layout.addWidget(self.apv_access_button, 4, 0, 1, 0)
layout.addWidget(self.apv_status, 5, 0, 1, 0)
layout.addWidget(gui.QLabel(_("Num key learnt")), 6, 0)
layout.addWidget(self.numkeys_label, 6, 1)
layout.addWidget(gui.QLabel(_("CARD IDE")), 7, 0)
layout.addWidget(self.currentcardide, 7, 1)
layout.addWidget(self.learnbutton, 8, 0, 1, 0)
layout.addWidget(self.validatebutton, 9, 0)
layout.addWidget(self.cancelbutton, 9, 1)
self.setLayout(layout)
# I have to use a timer here to avoid ECU from escaping session mode
# A shot every 1.5 seconds is enough, normally
self.tester_timer = core.QTimer()
self.tester_timer.setSingleShot(False)
self.tester_timer.setInterval(1500)
self.tester_timer.timeout.connect(self.check_all)
isk = self.get_isk()
self.iskoutput.setText(isk)
self.tester_timer.start()
def calculate_pin(self):
ISK = ''.join(str(ord(c)) for c in str(self.iskoutput.text()))
if len(ISK) == 12:
if self.algocheck.checkState():
PIN = a8_2(ISK)
else:
PIN = a8(ISK)
if PIN is not None:
self.pininput.setText(PIN)
self.iskoutput.setStyleSheet("color: green;")
return
self.pininput.setText("000000000000")
self.iskoutput.setStyleSheet("color: red;")
def learn_action(self):
self.learn_key_request.send_request()
def validate_action(self):
self.learn_validate_request.send_request()
def cancel_action(self):
self.learn_cancel_request.send_request()
def get_isk(self):
# No dataitem for ISK :(
# Need to decode by myself
if options.simulation_mode:
reply = "61 AB 02 FC 0D 08 51 4C 86 55 54 00 00 00 00 00 00 00 00 8D E8 EE 16 79 D3 C9 A7 A7 CC " \
"F6 AC 00 00 00 00 00 00 2A"
else:
reply = options.elm.request(self.reserved_frame_request.sentbytes)
if reply.startswith('7F') or reply.startswith('WRONG'):
options.main_window.logview.append(_("Cannot get ISK, check connections and UCH compatibility"))
return
isk = reply.replace(' ', '').strip()
return get_isk(isk)
def ecu_connect(self):
connection = self.megane_ecu.connect_to_hardware()
if not connection:
options.main_window.logview.append(_("Cannot connect to ECU"))
self.finished()
def check_all(self):
self.check_apv_status()
self.check_num_key_learnt()
def set_apv_from_input(self):
apv = ''.join(str(ord(c)) for c in str(self.pininput.text()))
if len(apv) != 12:
return
self.after_sale_request.send_request({u'Code APV': apv})
def enable_buttons(self, enable):
self.learnbutton.setEnabled(enable)
self.validatebutton.setEnabled(enable)
self.cancelbutton.setEnabled(enable)
def check_apv_status(self):
key_bits_status_values = self.key_bits_status.send_request({}, "61 06 21 21 20 00 00 00 08 00 00 80 03")
value_apv_ok = key_bits_status_values[u'VSC Code APV_Reconnu']
value_apv_reaff = key_bits_status_values[u'VSC ModeAPV_ReaffArmé']
value_apv_uch_reaff = key_bits_status_values[u'VSC ModeAPV_AppUCH_Armé']
if value_apv_ok == '0':
self.apv_status.setText(_("<font color='red'>PIN CODE NOT RECOGNIZED</font>"))
self.apvok = False
self.enable_buttons(False)
return
if value_apv_reaff == '1':
self.apv_status.setText(_("<font color='green'>PIN CODE OK / KEY LEARNING</font>"))
self.enable_buttons(True)
self.apvok = True
return
elif value_apv_uch_reaff == '1':
self.apv_status.setText(_("<font color='green'>PIN CODE OK / UCH LEARNING</font>"))
self.enable_buttons(True)
self.apvok = True
return
self.apvok = False
self.enable_buttons(False)
self.apv_status.setText("<font color='red'>UCH NOT READY</font>")
def check_num_key_learnt(self):
key_bytes_status_value = self.key_bytes_status.send_request({}, "61 08 00 00 00 00 00 00 0A 00 00 00 00 00 00 "
"00 00 00 00 00 00 00 00 00 00 02 00 00 01 2C "
"00 00 01 2C 00 00 2C 00 00 01 2C")
num_key_learnt = key_bytes_status_value[u'VSC NbTotalDeBadgeAppris']
current_key_ide = key_bytes_status_value[u'VSC Code_IDE']
self.numkeys_label.setText(num_key_learnt)
self.currentcardide.setText(current_key_ide)
def start_diag_session(self):
sds_request = self.megane_ecu.requests[u"Start Diagnostic Session"]
sds_stream = " ".join(sds_request.build_data_stream({}))
if options.simulation_mode:
print("SdS stream", sds_stream)
return
options.elm.start_session_can(sds_stream)
def plugin_entry():
cp = CardProg()
cp.exec_()