# This file is part of Scapy
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# Scapy is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# any later version.
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#
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# Scapy is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Scapy. If not, see <http://www.gnu.org/licenses/>.
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# author: <jellch@harris.com>
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# scapy.contrib.description = PPI CACE
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# scapy.contrib.status = loads
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"""
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CACE PPI types
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"""
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import logging,struct
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from scapy.config import conf
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from scapy.packet import *
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from scapy.fields import *
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from scapy.layers.l2 import Ether
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from scapy.layers.dot11 import Dot11
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from scapy.contrib.ppi import *
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PPI_DOT11COMMON = 2
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PPI_DOT11NMAC = 3
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PPI_DOT11NMACPHY = 4
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PPI_SPECTRUMMAP = 5
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PPI_PROCESSINFO = 6
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PPI_CAPTUREINFO = 7
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PPI_AGGREGATION = 8
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PPI_DOT3 = 9
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# PPI 802.11 Common Field Header Fields
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class dBmByteField(Field):
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def __init__(self, name, default):
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Field.__init__(self, name, default, "b")
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def i2repr(self, pkt, val):
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if (val != None):
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val = "%4d dBm" % val
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return val
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class PPITSFTField(LELongField):
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def i2h(self, pkt, val):
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flags = 0
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if (pkt):
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flags = pkt.getfieldval("Pkt_Flags")
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if not flags:
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flags = 0
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if (flags & 0x02):
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scale = 1e-3
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else:
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scale = 1e-6
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tout = scale * float(val)
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return tout
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def h2i(self, pkt, val):
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scale = 1e6
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if pkt:
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flags = pkt.getfieldval("Pkt_Flags")
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if flags:
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if (flags & 0x02):
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scale = 1e3
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tout = int((scale * val) + 0.5)
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return tout
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_PPIDot11CommonChFlags = ['','','','','Turbo','CCK','OFDM','2GHz','5GHz',
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'PassiveOnly','Dynamic CCK-OFDM','GSFK']
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_PPIDot11CommonPktFlags = ['FCS','TSFT_ms','FCS_Invalid','PHY_Error']
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# PPI 802.11 Common Field Header
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class Dot11Common(Packet):
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name = "PPI 802.11-Common"
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fields_desc = [ LEShortField('pfh_type',PPI_DOT11COMMON),
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LEShortField('pfh_length', 20),
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PPITSFTField('TSF_Timer', 0),
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FlagsField('Pkt_Flags',0, -16, _PPIDot11CommonPktFlags),
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LEShortField('Rate',0),
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LEShortField('Ch_Freq',0),
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FlagsField('Ch_Flags', 0, -16, _PPIDot11CommonChFlags),
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ByteField('FHSS_Hop',0),
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ByteField('FHSS_Pat',0),
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dBmByteField('Antsignal',-128),
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dBmByteField('Antnoise',-128)]
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def extract_padding(self, p):
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return b"",p
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#Hopefully other CACE defined types will be added here.
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#Add the dot11common layer to the PPI array
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addPPIType(PPI_DOT11COMMON, Dot11Common)
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