def _mastertoken_checks(self):
"""Perform checks to the MasterToken and executes a new key handshake when necessary"""
is_handshake_required = False
if self.crypto.mastertoken:
if self.crypto.is_current_mastertoken_expired():
LOG.debug(
'Stored MSL MasterToken is expired, a new key handshake will be performed'
)
is_handshake_required = True
else:
# Check if the current ESN is same of ESN bound to MasterToken
if get_esn() != self.crypto.bound_esn:
LOG.debug(
'Stored MSL MasterToken is bound to a different ESN, '
'a new key handshake will be performed')
is_handshake_required = True
else:
LOG.debug(
'MSL MasterToken is not available, a new key handshake will be performed'
)
is_handshake_required = True
if is_handshake_required:
if self.perform_key_handshake():
msl_data = json.loads(common.load_file_def(MSL_DATA_FILENAME))
self.crypto.load_msl_data(msl_data)
self.crypto.load_crypto_session(msl_data)
def _init_msl_handler(self):
self.msl_requests = None
try:
msl_data = json.loads(common.load_file_def(MSL_DATA_FILENAME))
LOG.info('Loaded MSL data from disk')
except Exception: # pylint: disable=broad-except
msl_data = None
self.msl_requests = MSLRequests(msl_data)
self.switch_events_handler()