def _pre_capture_config(self, override_configs=None):
"""Utility function which configures the wireless interface per the
specified configurations. Operation is performed before every capture
start using baseline configurations (specified when sniffer initialized)
and override configurations specified here.
"""
final_configs = {}
if self._base_configs:
final_configs.update(self._base_configs)
if override_configs:
final_configs.update(override_configs)
if sniffer.Sniffer.CONFIG_KEY_CHANNEL in final_configs:
try:
utils.exe_cmd(
"iwconfig", self._interface, "channel",
str(final_configs[sniffer.Sniffer.CONFIG_KEY_CHANNEL]))
except Exception as err:
raise sniffer.ExecutionError(err)
def __init__(self, interface, logger, base_configs=None):
"""See base class documentation
"""
self._base_configs = None
self._capture_file_path = ""
self._interface = ""
self._logger = logger
self._process = None
self._temp_capture_file_path = ""
if interface == "":
raise sniffer.InvalidDataError("Empty interface provided")
self._interface = interface
self._base_configs = base_configs
try:
utils.exe_cmd("ifconfig", self._interface, "down")
utils.exe_cmd("iwconfig", self._interface, "mode", "monitor")
utils.exe_cmd("ifconfig", self._interface, "up")
except Exception as err:
raise sniffer.ExecutionError(err)
def __init__(self, interface, logger, base_configs=None):
"""See base class documentation
"""
self._base_configs = None
self._capture_file_path = ""
self._interface = ""
self._logger = logger
self._process = None
self._temp_capture_file_path = ""
if interface == "":
raise sniffer.InvalidDataError("Empty interface provided")
self._interface = interface
self._base_configs = base_configs
try:
subprocess.check_call(['ifconfig', self._interface, 'down'])
subprocess.check_call(
['iwconfig', self._interface, 'mode', 'monitor'])
subprocess.check_call(['ifconfig', self._interface, 'up'])
except Exception as err:
raise sniffer.ExecutionError(err)