def create_aut_env(self): # Spaeter on Button Click z.B.
''' this method creates the simulation'''
api_log_path = os.path.join(os.path.dirname(__file__), "../logs/api.log")
api.show_logging(logging.INFO, api_log_path, True)
my_env = api.create_environment(2500)
ecu_spec = SimpleECUSpec([], 200, 200)
ecu_group_1 = api.set_ecus(my_env, 10, 'SecureECU', ecu_spec)
ecu_spec = SimpleECUSpec(['SEC 1'], 200, 200)
ecu_spec.set_ecu_setting('t_ecu_auth_trigger_process', 100)
ecu_spec.set_ecu_setting('t_ecu_auth_trigger_intervall', 1000)
sec_mod_group = api.set_ecus(my_env, 1, 'SecLwAuthSecurityModule', ecu_spec)
bus_spec = SimpleBusSpec(['CAN_0'])
bus_group = api.set_busses(my_env, 1, 'StdCANBus', bus_spec)
api.connect_bus_by_obj(my_env, 'CAN_0', ecu_group_1 + sec_mod_group)
api.register_ecu_groups_to_secmod(my_env, sec_mod_group[0].ecu_id, [ecu_group_1])
certeros = api.create_cert_manager()
for ecu in APICore()._ecu_list_from_groups([[ecu_group_1]]): # UNINTENDED HACK
api.generate_valid_ecu_cert_cfg(certeros, ecu.ecu_id, CAEnum.CA_L313, 'SEC 1', 0, float('inf'))
api.generate_valid_sec_mod_cert_cfg(certeros, 'SEC 1', CAEnum.CA_L313, 0, float('inf'))
api.apply_certification(my_env, certeros)
stream_1 = MessageStream(my_env.get_env(), 'SecureECU_0', ['SecureECU_1', 'SecureECU_4', 'SecureECU_5'], 13, float('inf'), 0, float('inf'))
stream_2 = MessageStream(my_env.get_env(), 'SecureECU_1', ['SecureECU_3', 'SecureECU_2', 'SecureECU_5'], 12, float('inf'), 0, float('inf'))
stream_3 = MessageStream(my_env.get_env(), 'SecureECU_0', ['SecureECU_4', 'SecureECU_1', 'SecureECU_5'], 222, float('inf'), 0, float('inf'))
stream_4 = MessageStream(my_env.get_env(), 'SecureECU_3', ['SecureECU_0', 'SecureECU_1', 'SecureECU_5'], 11, float('inf'), 0, float('inf'))
stream_5 = MessageStream(my_env.get_env(), 'SecureECU_4', ['SecureECU_2', 'SecureECU_1', 'SecureECU_3'], 500, float('inf'), 0, float('inf'))
api.add_allowed_stream(my_env, 'SEC 1', stream_1)
api.add_allowed_stream(my_env, 'SEC 1', stream_2)
api.add_allowed_stream(my_env, 'SEC 1', stream_3)
api.add_allowed_stream(my_env, 'SEC 1', stream_4)
api.add_allowed_stream(my_env, 'SEC 1', stream_5)
t_set = TimingFunctionSet()
ecu_func_set = StdSecurLwSecModTimingFunctions(main_library_tag='CyaSSL')
t_set.set_mapping_from_function_set('SEC 1', ecu_func_set)
api.apply_timing_functions_set(my_env, 'SEC 1', t_set)
t_set2 = TimingFunctionSet()
ecu_func_set = StdSecurECUTimingFunctions(main_library_tag='CyaSSL')
for ecu in APICore()._ecu_list_from_groups([[ecu_group_1]]): # UNINTENDED HACK
t_set2.set_mapping_from_function_set(ecu.ecu_id, ecu_func_set)
api.apply_timing_functions_set(my_env, ecu.ecu_id, t_set2)
api.connect_monitor(my_env, self.monitor, 50)
api.build_simulation(my_env)
''' start this in a new thread'''
sim = SimulationThread(self, my_env)
sim.start()
def preprocess(self, env, mapp):
self.ecu_spec = SimpleECUSpec(mapp["id_list"] , mapp["send_buffer"], mapp["rec_buffer"])
for k in mapp["ecu_settings"]:
self.ecu_spec.set_ecu_setting(k, mapp["ecu_settings"][k])
self.ecu_group = api.ecu_sim_api.set_ecus(env, mapp["nr_ecus"], 'SecureECU', self.ecu_spec)
LWASpecPresets().apply_spec(ecu_spec, 'ecu')
ecu_group_3 = api.set_ecus(sim_env, 2, 'RegularSecureECU', ecu_spec)
ecu_spec = RegularECUSpec(["RegularSecureECU_18", "Any_ECU_Name"], 20000, 20000)
ecu_spec.set_apply_jitter(0.0001)
# ecu_spec.set_startup_delay(140) # start this ecu with delay of 15
LWASpecPresets().apply_spec(ecu_spec, 'ecu')
ecu_group_4 = api.set_ecus(sim_env, 3, 'RegularSecureECU', ecu_spec)
#===============================================================================
# Creating Security modules
#===============================================================================
# create the ECU specification
ecu_spec = SimpleECUSpec(['SEC 1'], 200000, 200000) # 200 KB
# adjust the specification
ecu_spec.set_ecu_setting('t_ecu_auth_trigger_process', 0)
ecu_spec.set_ecu_setting('t_ecu_auth_trigger_intervall', 1000)
ecu_spec.set_apply_jitter(0.0001)
LWASpecPresets().apply_spec(ecu_spec, 'sec_mod')
# create exactly one security module
sec_mod_group = api.set_ecus(sim_env, 1, 'SecLwAuthSecurityModule', ecu_spec)
security_module = sec_mod_group[0]
#===============================================================================
# Creating Gateways
#===============================================================================
class SecureECUAddWidget(AbstractAddPlugin):
''' This is the interface that connects the GUI and the actions to
execute for a SecureECU when it is to be created in the new
simulation window '''
GUI_NAME = "ECU Secure"
GUI_ICON = os.getcwd() + r'/icons/secure_ecu.png'
def __init__(self, parent):
AbstractAddPlugin.__init__(self, parent)
self._create_widgets(parent)
self.parent = parent
self.set_ecu_settings = {}
self.set_time_lib = {}
self.has_sec_mod_cert = False
self.id = uuid.uuid4()
self.ecu_group = None
def set_gui(self, mapp):
''' set the gui from the map received '''
try:
if "id_list" in mapp: self.id_list.setText(str(mapp["id_list"]))
if "send_buffer" in mapp: self.send_buf_textedit.setText(str(mapp["send_buffer"]))
if "rec_buffer" in mapp: self.rec_buf_textedit.setText(str(mapp["rec_buffer"]))
if "nr_ecus" in mapp: self.nr_ecus_textedit.setText(str(mapp["nr_ecus"]))
if "ecu_settings" in mapp: self.set_ecu_settings = mapp["ecu_settings"]
self._set_cb_changed()
if "ecu_timing" in mapp: self.set_time_lib = mapp["ecu_timing"]
index = self.ecu_set_time_sel_cb.findText(self.set_time_lib[self.ecu_set_time_cb.currentText()])
self.ecu_set_time_sel_cb.setCurrentIndex(index)
self._cur_set_time_entry = self.ecu_set_time_cb.currentText()
if "has_sec_mod_cert" in mapp: self.has_sec_mod_cert = mapp["has_sec_mod_cert"]
if not self.has_sec_mod_cert: self.has_sec_mod_cert_cb.setCurrentIndex(0)
except:
ECULogger().log_traceback()
def get_map(self):
mapping_values = {}
# Read the values from the gui and save them
# General Information
mapping_values["id_list"] = self._wrap(eval, self.id_list.text(), [])
mapping_values["send_buffer"] = self._wrap(int, self.send_buf_textedit.text(), 200)
mapping_values["rec_buffer"] = self._wrap(int, self.rec_buf_textedit.text(), 200)
mapping_values["nr_ecus"] = self._wrap(int, self.nr_ecus_textedit.text(), 0)
if self.ecu_set_te.text():
self.set_ecu_settings[self._cur_set_entry] = self.ecu_set_te.text()
mapping_values["ecu_settings"] = self.set_ecu_settings
# Certification and Timing
self.set_time_lib[self._cur_set_time_entry] = self.ecu_set_time_sel_cb.currentText() # Final entry
mapping_values['ecu_timing'] = self.set_time_lib
mapping_values['has_sec_mod_cert'] = self.has_sec_mod_cert
# mapping_values['connected_sec_mod'] = None
return mapping_values
def preprocess(self, env, mapp):
self.ecu_spec = SimpleECUSpec(mapp["id_list"] , mapp["send_buffer"], mapp["rec_buffer"])
for k in mapp["ecu_settings"]:
self.ecu_spec.set_ecu_setting(k, mapp["ecu_settings"][k])
self.ecu_group = api.ecu_sim_api.set_ecus(env, mapp["nr_ecus"], 'SecureECU', self.ecu_spec)
def get_actions(self):
''' returns the connections that can be made '''
actions = {}
actions['valid_cert'] = 'Generate Valid Certificate'
return actions
def execute_action(self, env_connect, *args):
pass
def main_process(self, env, mapp):
print("Main")
def postprocess(self, env, mapp):
print("Post")
def _create_widgets(self, parent):
# Layout
GBuilder().set_props(self, None, 100, 100)
main_lo = QVBoxLayout()
self.setLayout(main_lo)
# Title
main_lo.addWidget(GBuilder().label(parent, "<b>Description:</b>"))
hl = QHBoxLayout()
self.desc_label = GBuilder().label(parent, "Add a new SecureECU. This ECU resembles the ECU Part in a Lightweight Authentication Mechanism.")
self.desc_label.setFixedWidth(400)
self.icon = GBuilder().image(parent, SecureECUAddWidget.GUI_ICON, 2)
hl.addWidget(self.desc_label)
hl.addWidget(self.icon)
main_lo.addLayout(hl)
line = GBuilder().hor_line(parent)
main_lo.addWidget(line);
# Constructor Inputs
main_lo.addWidget(GBuilder().label(parent, "<b>General Information:</b>"))
lo0, self.id_list = GBuilder().label_text(parent, "List of IDs (optional):", label_width=120)
lo1, self.send_buf_textedit = GBuilder().label_text(parent, "Sending BufferSize:", label_width=120)
lo2, self.rec_buf_textedit = GBuilder().label_text(parent, "Receiving Buffer Size:", label_width=120)
lo3, self.nr_ecus_textedit = GBuilder().label_text(parent, "Number of ECUs:", label_width=120)
main_lo.addLayout(lo0)
main_lo.addLayout(lo1)
main_lo.addLayout(lo2)
main_lo.addLayout(lo3)
# ECU Settings
items = self._get_ecu_settings()
hl, self.ecu_set_cb, self.ecu_set_te = GBuilder().combobox_text(parent, items, self._set_cb_changed)
self._cur_set_entry = self.ecu_set_cb.currentText()
main_lo.addLayout(hl)
# Timing Mapping
line = GBuilder().hor_line(parent)
main_lo.addWidget(line);
lab = GBuilder().label(parent, "<b>Timing and Certification:</b>")
lab.setFixedHeight(20)
main_lo.addWidget(lab)
itm = StdSecurECUTimingFunctions()
avail_items = itm.available_tags
items = itm.function_map.keys()
hl1 = QHBoxLayout()
self.ecu_set_time_cb = GBuilder().combobox(parent, items, self._set_time_cb_changed)
self._cur_set_time_entry = self.ecu_set_time_cb.currentText()
self.ecu_set_time_sel_cb = GBuilder().combobox(parent, avail_items, self._set_time_cb_changed)
self._cur_set_time_sel_entry = self.ecu_set_time_sel_cb.currentText()
hl1.addWidget(self.ecu_set_time_cb)
hl1.addWidget(self.ecu_set_time_sel_cb)
main_lo.addLayout(hl1)
# Certification (has a valid certificate or not)
# hl, self.has_sec_mod_cert_cb, lab = GBuilder().label_combobox(parent, "Has Security Module Certificate", ["Yes", "No"], self._has_sec_mod_cb_changed)
# main_lo.addLayout(hl)
def _get_ecu_settings(self):
SecureECU().settings = sorted(SecureECU().settings, key=lambda key: SecureECU().settings[key])
return SecureECU().settings
def _has_sec_mod_cb_changed(self):
try:
if self.has_sec_mod_cert_cb.currentText() == "Yes":
self.has_sec_mod_cert = True
else:
self.has_sec_mod_cert = False
except:
pass
def _set_time_cb_changed(self):
try:
# Save old value
if self._cur_set_time_entry == self.ecu_set_time_cb.currentText():
self.set_time_lib[self._cur_set_time_entry] = self.ecu_set_time_sel_cb.currentText()
self._cur_set_time_entry = self.ecu_set_time_cb.currentText()
return
# Load the next one
try:
index = self.ecu_set_time_sel_cb.findText(self.set_time_lib[self.ecu_set_time_cb.currentText()])
self.ecu_set_time_sel_cb.setCurrentIndex(index)
except:
self.ecu_set_time_sel_cb.setCurrentIndex(0)
self._cur_set_time_entry = self.ecu_set_time_cb.currentText()
except:
pass
def _set_cb_changed(self):
try:
# Save old value
if self.ecu_set_te.text():
self.set_ecu_settings[self._cur_set_entry] = self.ecu_set_te.text()
# Load the next one
try:
self.ecu_set_te.setText(self.set_ecu_settings[self.ecu_set_cb.currentText()])
except:
self.ecu_set_te.setText('')
self._cur_set_entry = self.ecu_set_cb.currentText()
except:
pass
def _wrap(self, func, prime, second):
try:
el = func(prime)
return el
except:
return second
def prepare_configuration(self, simpy_env, life_time):
''' this method prepares the configuration on the side of the
ECU simulation. It sets up the defined environment by mapping
the ECU Ids as they are defined in the battery management system
on the ECUs and the defined specs. So the constellation used is
implemented here.
Input: simpy_env simpy.Environment environment used in the battery management system
life_time float life time of the simulation
Output: -
'''
# lifetime
life_time = 50000
# logging
# api_log_path = os.path.join(os.path.dirname(__file__), "../logs/api.log")
# api.show_logging(logging.INFO, api_log_path, True)
# create environment
sim_env = api.create_environment(life_time)
sim_env.set_env(simpy_env)
ecu_list = []
# generate a ecu from the ECU specs setting the adapter
for ecu_id in self.available_can_adapters():
# logging.info("ECU ID %s: " % ecu_id)
# define individual ECU Spec
ecu_spec = copy.deepcopy(self._ecu_spec)
ecu_class_name = self._ecu_class_name
if ecu_id in self._individual_spec:
ecu_spec = self._individual_spec[ecu_id][0]
ecu_class_name = self._individual_spec[ecu_id][1]
ecu_spec.ecu_id_list = [str(ecu_id)]
# create ecu
ecu = api.set_ecus(sim_env, 1, ecu_class_name, ecu_spec)[0]
ecu_list += [ecu]
# connect ecu to adapter
ecu.connect_adapter(self.can_bus_adapter[ecu_id])
# add security module
# create ECU specification
ecu_spec = SimpleECUSpec(['SEC 1'], 200000, 200000) # 200 KB
ecu_spec.set_ecu_setting('t_ecu_auth_trigger_process', 0)
ecu_spec.set_ecu_setting('t_ecu_auth_trigger_intervall', 80000)
ecu_spec.set_apply_jitter(0.0001)
sec_mod_group = api.set_ecus(sim_env, 1, 'SecLwAuthSecurityModule', ecu_spec)
security_module = sec_mod_group[0]
# connect to one bus
# create the bus specifications
bus_spec = SimpleBusSpec(['CAN_0'])
api.set_busses(sim_env, 1, 'StdCANBus', bus_spec)
api.connect_bus_by_obj(sim_env, 'CAN_0', ecu_list + sec_mod_group)
# security constellation
all_ecu_groups = [ecu_list]
api.register_ecu_groups_to_secmod(sim_env, sec_mod_group[0].ecu_id, all_ecu_groups)
certificate_manager = api.create_cert_manager()
all_created_ecus = api.ecu_list_from_groups([all_ecu_groups])
ecu_ids = [str(ecu.ecu_id) for ecu in all_created_ecus]
for ecu_id in ecu_ids:
api.generate_valid_ecu_cert_cfg(certificate_manager, ecu_id, CAEnum.CA_L313, security_module.ecu_id, 0, float('inf'))
api.generate_valid_sec_mod_cert_cfg(certificate_manager, security_module.ecu_id, CAEnum.CA_L313, ecu_ids, 0, float('inf'))
api.apply_certification(sim_env, certificate_manager)
# define allowed streams -------------------------------------------------------------- TODO very IMPORTANT
for broadcast_stream_id in [0x0080, 0x0081, 0x0082, 0x0083, 0x0012, 0x0013, 0x0020, 0x00A0, 0x00A1 ]:
for ecu_id in ecu_ids:
lst = copy.deepcopy(ecu_ids)
lst.remove(ecu_id)
stream = MessageStream(ecu_id, lst, broadcast_stream_id, float('inf'), 0, float('inf'))
api.add_allowed_stream(sim_env, security_module.ecu_id, stream)
# -------------------------------------------------------------- TODO very IMPORTANT
# set gateways
api.autoset_gateway_filters(sim_env, sec_mod_group[0].ecu_id)
# set timing functions
function_set = TimingFunctionSet()
ecu_func_set = StdSecurLwSecModTimingFunctions(main_library_tag='CyaSSL')
ecu_func_set.library_tags['t_ecu_auth_reg_msg_validate_cert'] = 'Crypto_Lib_SW'
function_set.set_mapping_from_function_set(security_module.ecu_id, ecu_func_set)
api.apply_timing_functions_set(sim_env, security_module.ecu_id, function_set)
function_set_2 = TimingFunctionSet()
ecu_func_set = StdSecurECUTimingFunctions(main_library_tag='CyaSSL')
ecu_func_set.library_tags['t_adv_msg_secmodcert_enc'] = 'Crypto_Lib_SW'
for ecu_id in ecu_ids:
function_set_2.set_mapping_from_function_set(ecu_id, ecu_func_set)
api.apply_timing_functions_set(sim_env, ecu_id, function_set_2)
# add monitor
if self._monitor and self._result_reader:
api.connect_monitor(sim_env, self._monitor, 0.5)
api.connect_result_reader(sim_env, self._monitor, self._result_reader)
# run view if defined
if self._view:
self._view.show(self._result_reader, self._view_options, self.q_application)
# run simulation
api.open_simulation_stop_button(sim_env)
api.build_simulation(sim_env)
api.run_simulation(sim_env)
