def strip_present(payload):
        """strip(4 byte) radiotap.present. Those are flags that
        identify existence of incoming radiotap meta-data.
        :idx: int
        :return: str
        :return: namedtuple
        """
        present = collections.namedtuple(
            'present', ['tsft', 'flags', 'rate', 'channel', 'fhss',
                        'dbm_antsignal', 'dbm_antnoise', 'lock_quality',
                        'tx_attenuation', 'db_tx_attenuation', 'dbm_tx_power',
                        'antenna', 'db_antsignal', 'db_antnoise', 'rxflags',
                        'txflags', 'rts_retries', 'data_retries', 'xchannel',
                        'mcs', 'ampdu', 'vht', 'rtap_ns', 'ven_ns', 'ext'])

        val = struct.unpack('<L', payload)[0]
        bits = format(val, '032b')[::-1]
        present.tsft = int(bits[0])               # timer synchronization function
        present.flags = int(bits[1])              # flags
        present.rate = int(bits[2])               # rate
        present.channel = int(bits[3])            # channel
        present.fhss = int(bits[4])               # frequency hoping spread spectrum
        present.dbm_antsignal = int(bits[5])      # dbm antenna signal
        present.dbm_antnoise = int(bits[6])       # dbm antenna noinse
        present.lock_quality = int(bits[7])       # quality of barker code lock
        present.tx_attenuation = int(bits[8])     # transmitter attenuation
        present.db_tx_attenuation = int(bits[9])  # decibel transmit attenuation
        present.dbm_tx_power = int(bits[10])      # dbm transmit power
        present.antenna = int(bits[11])           # antenna
        present.db_antsignal = int(bits[12])      # db antenna signal
        present.db_antnoise = int(bits[13])       # db antenna noise
        present.rxflags = int(bits[14])           # receiver flags
        present.txflags = int(bits[15])           # transmitter flags
        present.rts_retries = int(bits[16])       # rts(request to send) retries
        present.data_retries = int(bits[17])      # data retries
        present.xchannel = int(bits[18])          # xchannel
        present.mcs = int(bits[19])               # modulation and coding scheme
        present.ampdu = int(bits[20])             # aggregated mac protocol data unit
        present.vht = int(bits[21])               # very high throughput
        present.rtap_ns = int(bits[29])           # radiotap namespace
        present.ven_ns = int(bits[30])            # vendor namespace
        present.ext = int(bits[31])               # extension

        return present, bits
def strip_present(payload):
        """strip(4 byte) radiotap.present. Those are flags that
        identify existence of incoming radiotap meta-data.
        :idx: int
        :return: str
        :return: namedtuple
        """
        present = collections.namedtuple(
            'present', ['tsft', 'flags', 'rate', 'channel', 'fhss',
                        'dbm_antsignal', 'dbm_antnoise', 'lock_quality',
                        'tx_attenuation', 'db_tx_attenuation', 'dbm_tx_power',
                        'antenna', 'db_antsignal', 'db_antnoise', 'rxflags',
                        'txflags', 'rts_retries', 'data_retries', 'xchannel',
                        'mcs', 'ampdu', 'vht', 'rtap_ns', 'ven_ns', 'ext'])

        val = struct.unpack('<L', payload)[0]
        bits = format(val, '032b')[::-1]
        present.tsft = int(bits[0])               # timer synchronization function
        present.flags = int(bits[1])              # flags
        present.rate = int(bits[2])               # rate
        present.channel = int(bits[3])            # channel
        present.fhss = int(bits[4])               # frequency hoping spread spectrum
        present.dbm_antsignal = int(bits[5])      # dbm antenna signal
        present.dbm_antnoise = int(bits[6])       # dbm antenna noinse
        present.lock_quality = int(bits[7])       # quality of barker code lock
        present.tx_attenuation = int(bits[8])     # transmitter attenuation
        present.db_tx_attenuation = int(bits[9])  # decibel transmit attenuation
        present.dbm_tx_power = int(bits[10])      # dbm transmit power
        present.antenna = int(bits[11])           # antenna
        present.db_antsignal = int(bits[12])      # db antenna signal
        present.db_antnoise = int(bits[13])       # db antenna noise
        present.rxflags = int(bits[14])           # receiver flags
        present.txflags = int(bits[15])           # transmitter flags
        present.rts_retries = int(bits[16])       # rts(request to send) retries
        present.data_retries = int(bits[17])      # data retries
        present.xchannel = int(bits[18])          # xchannel
        present.mcs = int(bits[19])               # modulation and coding scheme
        present.ampdu = int(bits[20])             # aggregated mac protocol data unit
        present.vht = int(bits[21])               # very high throughput
        present.rtap_ns = int(bits[29])           # radiotap namespace
        present.ven_ns = int(bits[30])            # vendor namespace
        present.ext = int(bits[31])               # extension

        return present, bits
def strip_present ( payload ) : present = collections . namedtuple ( 'present' , [ 'tsft' , 'flags' , 'rate' , 'channel' , 'fhss' , 'dbm_antsignal' , 'dbm_antnoise' , 'lock_quality' , 'tx_attenuation' , 'db_tx_attenuation' , 'dbm_tx_power' , 'antenna' , 'db_antsignal' , 'db_antnoise' , 'rxflags' , 'txflags' , 'rts_retries' , 'data_retries' , 'xchannel' , 'mcs' , 'ampdu' , 'vht' , 'rtap_ns' , 'ven_ns' , 'ext' ] ) val = struct . unpack ( '<L' , payload ) [ 0 ] bits = format ( val , '032b' ) [ : : - 1 ] present . tsft = int ( bits [ 0 ] ) # timer synchronization function present . flags = int ( bits [ 1 ] ) # flags present . rate = int ( bits [ 2 ] ) # rate present . channel = int ( bits [ 3 ] ) # channel present . fhss = int ( bits [ 4 ] ) # frequency hoping spread spectrum present . dbm_antsignal = int ( bits [ 5 ] ) # dbm antenna signal present . dbm_antnoise = int ( bits [ 6 ] ) # dbm antenna noinse present . lock_quality = int ( bits [ 7 ] ) # quality of barker code lock present . tx_attenuation = int ( bits [ 8 ] ) # transmitter attenuation present . db_tx_attenuation = int ( bits [ 9 ] ) # decibel transmit attenuation present . dbm_tx_power = int ( bits [ 10 ] ) # dbm transmit power present . antenna = int ( bits [ 11 ] ) # antenna present . db_antsignal = int ( bits [ 12 ] ) # db antenna signal present . db_antnoise = int ( bits [ 13 ] ) # db antenna noise present . rxflags = int ( bits [ 14 ] ) # receiver flags present . txflags = int ( bits [ 15 ] ) # transmitter flags present . rts_retries = int ( bits [ 16 ] ) # rts(request to send) retries present . data_retries = int ( bits [ 17 ] ) # data retries present . xchannel = int ( bits [ 18 ] ) # xchannel present . mcs = int ( bits [ 19 ] ) # modulation and coding scheme present . ampdu = int ( bits [ 20 ] ) # aggregated mac protocol data unit present . vht = int ( bits [ 21 ] ) # very high throughput present . rtap_ns = int ( bits [ 29 ] ) # radiotap namespace present . ven_ns = int ( bits [ 30 ] ) # vendor namespace present . ext = int ( bits [ 31 ] ) # extension return present , bits
strip(4 byte) radiotap.present. Those are flags that
        identify existence of incoming radiotap meta-data.
        :idx: int
        :return: str
        :return: namedtuple
strip ( 4 byte ) radiotap . present . Those are flags that identify existence of incoming radiotap meta - data . : idx : int : return : str : return : namedtuple