def __init__(self, data):
self._frame_size = len(data)
# Essential fields on the data frame
# Field ----------- Size
# frame control --- 2 B
# duration -------- 2 B
# destination ----- 6 B
# source ---------- 6 B
# bssid ----------- 6 B
# sequence ctrl --- 2 B
if self._frame_size < DOT11_DATA_FRAME_FIELDS_SIZE:
raise IndexError("Frame to short.")
index = 0
self._fc = FrameControl(data)
index += 2
self._duration = data[index:index + 2]
index += 2
# Addresses
self._destination = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._source = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._bssid = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
seqctrl = struct.unpack("H", data[index:index + 2])[0]
self._fragment = (seqctrl & 0x000F)
self._sequence = (seqctrl & 0xFFF0) >> 4
def __init__(self, data):
self._frame_size = len(data)
# Essential fields on the data frame
# Field ----------- Size
# frame control --- 2 B
# duration -------- 2 B
# destination ----- 6 B
# source ---------- 6 B
# bssid ----------- 6 B
# sequence ctrl --- 2 B
if self._frame_size < DOT11_DATA_FRAME_FIELDS_SIZE:
raise IndexError("Frame to short.")
index = 0
self._fc = FrameControl(data)
index += 2
self._duration = data[index:index + 2]
index += 2
# Addresses
self._destination = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._source = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._bssid = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
seqctrl = struct.unpack("H", data[index:index + 2])[0]
self._fragment = (seqctrl & 0x000F)
self._sequence = (seqctrl & 0xFFF0) >> 4
def _process(self, data):
'''Process Probe Request frame fields.'''
self._frameControl = FrameControl(data[:2])
if self._frameControl.getType() != TYPE_MANAGEMENT:
raise Exception("Invalid Frame Type.")
if self._frameControl.getSubtype() != SUBTYPE_MANAGEMENT_PROBE_REQ:
raise Exception("Invalid Frame Subtype.")
self._duration = struct.unpack("H", data[2:4])[0]
self._destination = helpers.bytes_to_mac_address(data[4:10])
self._source = helpers.bytes_to_mac_address(data[10:16])
self._bssid = helpers.bytes_to_mac_address(data[16:22])
# Process sequence control field
seqctrl = struct.unpack("H", data[22:24])[0]
self._fragment = (seqctrl & 0x000F)
self._sequence = (seqctrl & 0xFFF0) >> 4
if self._frame_size > DOT11_PROBE_REQUEST_FRAME_FIELDS_SIZE + FCS_SIZE:
# To get the offset of the information elements we need to go
# to the end offset of the essential fields of the beacon frame
# up to the end of the frame substracting the 4 bytes of the FCS.
ie_data = data[DOT11_BEACON_FRAME_FIELDS_SIZE:-4]
self._processInformationElements(ie_data)
def _process(self, data):
'''Process Probe Request frame fields.'''
self._frameControl = FrameControl(data[:2])
if self._frameControl.getType() != TYPE_MANAGEMENT:
raise Exception("Invalid Frame Type.")
if self._frameControl.getSubtype() != SUBTYPE_MANAGEMENT_PROBE_REQ:
raise Exception("Invalid Frame Subtype.")
self._duration = struct.unpack("H", data[2:4])[0]
self._destination = helpers.bytes_to_mac_address(data[4:10])
self._source = helpers.bytes_to_mac_address(data[10:16])
self._bssid = helpers.bytes_to_mac_address(data[16:22])
# Process sequence control field
seqctrl = struct.unpack("H", data[22:24])[0]
self._fragment = (seqctrl & 0x000F)
self._sequence = (seqctrl & 0xFFF0) >> 4
if self._frame_size > DOT11_PROBE_REQUEST_FRAME_FIELDS_SIZE + FCS_SIZE:
# To get the offset of the information elements we need to go
# to the end offset of the essential fields of the beacon frame
# up to the end of the frame substracting the 4 bytes of the FCS.
ie_data = data[DOT11_BEACON_FRAME_FIELDS_SIZE:-4]
self._processInformationElements(ie_data)
def __init__(self, data):
self._frame_size = len(data)
# Essential fields on the data frame
# Field ----------- Size
# frame control --- 2 B
# duration -------- 2 B
# address1 -------- 6 B
# address2 -------- 6 B
# address3 -------- 6 B
# sequence ctrl --- 2 B
# address4 -------- 6 B (optional)
if self._frame_size < DOT11_DATA_FRAME_FIELDS_SIZE:
raise IndexError("Frame to short.")
index = 0
self._fc = FrameControl(data)
index += 2
self._duration = data[index:index + 2]
index += 2
self._ibss = False
self._infrastructure = False
self._wds = False
# Addresses
self._address1 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._address2 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._address3 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
to_ds = self._fc.getToDs()
from_ds = self._fc.getFromDs()
# IBSS
if not to_ds and not from_ds:
self._ibss = True
self._destination = self._address1
self._source = self._address2
self._bssid = self._address3
# Infrastructure
if (to_ds and not from_ds) or (not to_ds and from_ds):
self._infrastructure = True
if (to_ds and not from_ds):
self._bssid = self._address1
self._source = self._address2
self._destination = self._address3
else:
self._destination = self._address1
self._bssid = self._address2
self._source = self._address3
# WDS
if to_ds and from_ds:
self._address4 = helpers.bytes_to_mac_address(data[index:index +
6])
index += 6
self._wds = True
self._bssid = self._address1
self._destination = self._address3
self._source = self._address4
seqctrl = struct.unpack("H", data[index:index + 2])[0]
self._fragment = (seqctrl & 0x000F)
self._sequence = (seqctrl & 0xFFF0) >> 4
def __init__(self, data):
self._frame_size = len(data)
# Essential fields on the data frame
# Field ----------- Size
# frame control --- 2 B
# duration -------- 2 B
# address1 -------- 6 B
# address2 -------- 6 B
# address3 -------- 6 B
# sequence ctrl --- 2 B
# address4 -------- 6 B (optional)
if self._frame_size < DOT11_DATA_FRAME_FIELDS_SIZE:
raise IndexError("Frame to short.")
index = 0
self._fc = FrameControl(data)
index += 2
self._duration = data[index:index + 2]
index += 2
self._ibss = False
self._infrastructure = False
self._wds = False
# Addresses
self._address1 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._address2 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._address3 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
to_ds = self._fc.getToDs()
from_ds = self._fc.getFromDs()
# IBSS
if not to_ds and not from_ds:
self._ibss = True
self._destination = self._address1
self._source = self._address2
self._bssid = self._address3
# Infrastructure
if (to_ds and not from_ds) or (not to_ds and from_ds):
self._infrastructure = True
if (to_ds and not from_ds):
self._bssid = self._address1
self._source = self._address2
self._destination = self._address3
else:
self._destination = self._address1
self._bssid = self._address2
self._source = self._address3
# WDS
if to_ds and from_ds:
self._address4 = helpers.bytes_to_mac_address(data[index:index + 6])
index += 6
self._wds = True
self._bssid = self._address1
self._destination = self._address3
self._source = self._address4
seqctrl = struct.unpack("H", data[index:index + 2])[0]
self._fragment = (seqctrl & 0x000F)
self._sequence = (seqctrl & 0xFFF0) >> 4
