@@ -21,6 +21,8 @@ from scapy.packet import *
 from scapy.fields import *
 from scapy.layers.dot11 import *
 
+LINKTYPE_IEEE802_11_AVS = 163
+
 AVSWLANPhyType =  { 0 : "Unknown",
                     1 : "FHSS 802.11 '97",
                     2 : "DSSS 802.11 '97", 
#! /usr/bin/env python

# This file is part of Scapy
# Scapy is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# any later version.
#
# Scapy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Scapy. If not, see <http://www.gnu.org/licenses/>.

# scapy.contrib.description = AVS WLAN Monitor Header
# scapy.contrib.status = loads

from scapy.packet import *
from scapy.fields import *
from scapy.layers.dot11 import *

AVSWLANPhyType =  { 0 : "Unknown",
                    1 : "FHSS 802.11 '97",
                    2 : "DSSS 802.11 '97", 
                    3 : "IR Baseband",
                    4 : "DSSS 802.11b",
                    5 : "PBCC 802.11b", 
                    6 : "OFDM 802.11g",
                    7 : "PBCC 802.11g",
                    8 : "OFDM 802.11a" }

AVSWLANEncodingType =  { 0 : "Unknown",
                         1 : "CCK",
                         2 : "PBCC",
                         3 : "OFDM"}

AVSWLANSSIType = { 0 : "None",
                   1 : "Normalized RSSI",
                   2 : "dBm",
                   3 : "Raw RSSI"}

AVSWLANPreambleType = { 0 : "Unknown",
                        1 : "Short",
                        2 : "Long" }


class AVSWLANHeader(Packet):
        """ iwpriv eth1 set_prismhdr 1 """
        name = "AVS WLAN Monitor Header"
        fields_desc = [   IntField("version",1),
                          IntField("len",64),
                         LongField("mactime",0),
                         LongField("hosttime",0),
                      IntEnumField("phytype",0, AVSWLANPhyType),
                          IntField("channel",0),
                          IntField("datarate",0),
                          IntField("antenna",0),
                          IntField("priority",0),
                      IntEnumField("ssi_type",0, AVSWLANSSIType),
                    SignedIntField("ssi_signal",0),
                    SignedIntField("ssi_noise",0),
                      IntEnumField("preamble",0, AVSWLANPreambleType),
                      IntEnumField("encoding",0, AVSWLANEncodingType),
                        ]

bind_layers(AVSWLANHeader, Dot11)

Please create a constant value `DLT_IEEE802_11_RADIO_AVS = 163` in `data.py` and use it instead.