def __enforce_no_existing_ppp_session(self):
pid_list = self.__check_for_existing_ppp_sessions()
if len(pid_list) > 0:
raise PPPError('Existing PPP session(s) are established by pid(s) %s. Please close/kill these processes first'
% pid_list)
def __enforce_no_existing_ppp_session(self):
process = self.__check_for_existing_ppp_sessions()
if process is None:
return
pid = process.split(' ')[1]
raise PPPError(
'An existing PPP session established by pid %s is currently using the %s device interface. Please close/kill that process first'
% (pid, self.device_name))
def waitForPPPSuccess(self, timeout):
starttime = time.time()
while (time.time() - starttime) < timeout:
self.readFromPPP()
if self.laddr is not None and self.raddr is not None:
return True
if 'Modem hangup' in self.output:
raise PPPError('Modem hangup - possibly due to an unregistered SIM')
elif self.proc.poll():
raise PPPConnectionError(self.proc.returncode, self.output)
return False
def __check_for_existing_ppp_sessions(self):
existing_ppp_pids = []
self.logger.info('Checking for existing PPP sessions')
for proc in psutil.process_iter():
try:
pinfo = proc.as_dict(attrs=['pid', 'name'])
except:
raise PPPError('Failed to check for existing PPP sessions')
if 'pppd' in pinfo['name']:
self.logger.info('Found existing PPP session on pid: %s', pinfo['pid'])
existing_ppp_pids.append(pinfo['pid'])
return existing_ppp_pids
def connectThreadedFunc(self, result):
while True:
try:
self.output += self.proc.stdout.read()
except IOError as e:
if e.errno != 11:
raise
time.sleep(1)
if self.laddr != None and self.raddr != None:
result[0] = True
return
if 'Modem hangup' in self.output:
raise PPPError('Modem hangup - possibly due to an unregistered SIM')
elif self.proc.poll():
raise PPPConnectionError(self.proc.returncode, self.output)