5dec1fc8b4
Related with #17774.
834 lines
33 KiB
C
834 lines
33 KiB
C
/* packet-peekremote.c
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*
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* Routines for the disassembly of packets sent from Cisco WLAN
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* Controllers, possibly other Cisco access points, and possibly
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* other devices such as Aruba access points. See
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*
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* https://web.archive.org/web/20130117041444/http://www.wildpackets.com/elements/omnipeek/OmniPeek_UserGuide.pdf
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*
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* which speaks of Aruba access points supporting remote capture and
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* defaulting to port 5000 for this, and also speaks of Cisco access
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* points supporting remote capture without any reference to a port
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* number. The two types of remote capture are described separately;
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* there's no indication of whether they use the same protocol for
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* streaming packets but perhaps other protocols for, for example,
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* discovery and setup, or whether they use different protocols
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* for streaming packets.
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*
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* A later manual at
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*
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* https://community.liveaction.com/wp-content/uploads/2020/02/Omnipeek-UserGuide-2-20.pdf
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*
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* speaks of Aruba and Cisco access points together, mentioning port 5000.
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*
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* Apparently Aruba supports several protocols, including Peek remote.
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* See the packet-aruba-erm dissector.
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*
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* Tested with frames captured from a Cisco WCS.
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*
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* Copyright 2007 Joerg Mayer (see AUTHORS file)
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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/*
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* TODO: Decode meta information.
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* Check on fillup bytes in capture (fcs sometimes wrong)
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* From:
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* http://www.cisco.com/univercd/cc/td/doc/product/wireless/pahcont/oweb.pdf
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* "It will include information on timestamp, signal strength, packet size
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* and so on"
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*/
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#include "config.h"
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#include <wiretap/wtap.h>
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include <wsutil/802_11-utils.h>
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#define IS_ARUBA 0x01
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#define PEEKREMOTE_PORT 5000 /* Not IANA registered */
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void proto_register_peekremote(void);
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void proto_reg_handoff_peekremote(void);
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static int proto_peekremote;
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static dissector_handle_t peekremote_handle;
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/*
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* XXX - we don't have all the MCS index values here.
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* We should probably just show the MCS index as a number (those
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* numbers are used in 802.11), and have separate items for the
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* number of spatial streams, the modulation type, and the coding rate.
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* Note that some modes with more than one spatial stream use *different*
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* modulation types for the different streams. See section 20.6
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* "Parameters for HT MCSs" in 802.11-2012.
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*/
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static const value_string peekremote_mcs_index_vals[] = {
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{ 0, "Spatial streams: 1, Modulation type: BPSK, Codingrate: 1/2" },
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{ 1, "Spatial streams: 1, Modulation type: QPSK, Codingrate: 1/2" },
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{ 2, "Spatial streams: 1, Modulation type: QPSK, Codingrate: 3/4" },
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{ 3, "Spatial streams: 1, Modulation type: 16-QAM, Codingrate: 1/2" },
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{ 4, "Spatial streams: 1, Modulation type: 16-QAM, Codingrate: 3/4" },
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{ 5, "Spatial streams: 1, Modulation type: 64-QAM, Codingrate: 2/3" },
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{ 6, "Spatial streams: 1, Modulation type: 64-QAM, Codingrate: 3/4" },
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{ 7, "Spatial streams: 1, Modulation type: 64-QAM, Codingrate: 5/6" },
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{ 8, "Spatial streams: 2, Modulation type: BPSK, Codingrate: 1/2" },
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{ 9, "Spatial streams: 2, Modulation type: QPSK, Codingrate: 1/2" },
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{ 10, "Spatial streams: 2, Modulation type: QPSK, Codingrate: 3/4" },
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{ 11, "Spatial streams: 2, Modulation type: 16-QAM, Codingrate: 1/2" },
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{ 12, "Spatial streams: 2, Modulation type: 16-QAM, Codingrate: 3/4" },
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{ 13, "Spatial streams: 2, Modulation type: 64-QAM, Codingrate: 2/3" },
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{ 14, "Spatial streams: 2, Modulation type: 64-QAM, Codingrate: 3/4" },
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{ 15, "Spatial streams: 2, Modulation type: 64-QAM, Codingrate: 5/6" },
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{ 16, "Spatial streams: 3, Modulation type: BPSK, Codingrate: 1/2" },
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{ 17, "Spatial streams: 3, Modulation type: QPSK, Codingrate: 1/2" },
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{ 18, "Spatial streams: 3, Modulation type: QPSK, Codingrate: 3/4" },
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{ 19, "Spatial streams: 3, Modulation type: 16-QAM, Codingrate: 1/2" },
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{ 20, "Spatial streams: 3, Modulation type: 16-QAM, Codingrate: 3/4" },
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{ 21, "Spatial streams: 3, Modulation type: 64-QAM, Codingrate: 2/3" },
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{ 22, "Spatial streams: 3, Modulation type: 64-QAM, Codingrate: 3/4" },
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{ 23, "Spatial streams: 3, Modulation type: 64-QAM, Codingrate: 5/6" },
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{ 24, "Spatial streams: 4, Modulation type: BPSK, Codingrate: 1/2" },
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{ 25, "Spatial streams: 4, Modulation type: QPSK, Codingrate: 1/2" },
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{ 26, "Spatial streams: 4, Modulation type: QPSK, Codingrate: 3/4" },
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{ 27, "Spatial streams: 4, Modulation type: 16-QAM, Codingrate: 1/2" },
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{ 28, "Spatial streams: 4, Modulation type: 16-QAM, Codingrate: 3/4" },
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{ 29, "Spatial streams: 4, Modulation type: 64-QAM, Codingrate: 2/3" },
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{ 30, "Spatial streams: 4, Modulation type: 64-QAM, Codingrate: 3/4" },
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{ 31, "Spatial streams: 4, Modulation type: 64-QAM, Codingrate: 5/6" },
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{ 0, NULL }
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};
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static value_string_ext peekremote_mcs_index_vals_ext = VALUE_STRING_EXT_INIT(peekremote_mcs_index_vals);
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/* There is no reason to define a separate set of constants for HE(11ax) as it only adds a MCS 10 and 11. MCS0-9 stay the same. We could even imagine an 11ac implementation with MCS10 and 11 (nonstandard)
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*/
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static const value_string peekremote_mcs_index_vals_ac[] = {
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{ 0, "Modulation type: BPSK, Codingrate: 1/2" },
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{ 1, "Modulation type: QPSK, Codingrate: 1/2" },
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{ 2, "Modulation type: QPSK, Codingrate: 3/4" },
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{ 3, "Modulation type: 16-QAM, Codingrate: 1/2" },
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{ 4, "Modulation type: 16-QAM, Codingrate: 3/4" },
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{ 5, "Modulation type: 64-QAM, Codingrate: 2/3" },
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{ 6, "Modulation type: 64-QAM, Codingrate: 3/4" },
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{ 7, "Modulation type: 64-QAM, Codingrate: 5/6" },
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{ 8, "Modulation type: 256-QAM, Codingrate: 3/4" },
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{ 9, "Modulation type: 256-QAM, Codingrate: 5/6" },
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{ 10, "Modulation type: 1024-QAM, Codingrate: 3/4" },
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{ 11, "Modulation type: 1024-QAM, Codingrate: 5/6" },
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{ 0, NULL }
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};
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static const value_string spatialstreams_vals[] = {
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{ 0, "1" },
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{ 1, "2" },
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{ 2, "3" },
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{ 3, "4" },
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{ 4, "5" },
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{ 5, "6" },
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{ 6, "7" },
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{ 7, "8" },
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{ 0, NULL }
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};
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static const value_string peekremote_type_vals[] = {
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{ 6, "kMediaSpecificHdrType_Wireless3" },
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{ 0, NULL }
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};
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/*
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* Extended flags.
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*
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* Some determined from bug 10637, some determined from bug 9586,
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* and the ones present in both agree, so we're assuming that
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* the "remote Peek" protocol and the "Peek tagged" file format
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* use the same bits (which wouldn't be too surprising, as they
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* both come from Wildpackets).
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*/
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#define EXT_FLAG_20_MHZ_LOWER 0x00000001
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#define EXT_FLAG_20_MHZ_UPPER 0x00000002
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#define EXT_FLAG_40_MHZ 0x00000004
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#define EXT_FLAGS_BANDWIDTH 0x00000007
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#define EXT_FLAG_HALF_GI 0x00000008
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#define EXT_FLAG_FULL_GI 0x00000010
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#define EXT_FLAGS_GI 0x00000018
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#define EXT_FLAG_AMPDU 0x00000020
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#define EXT_FLAG_AMSDU 0x00000040
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#define EXT_FLAG_802_11ac 0x00000080
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#define EXT_FLAG_MCS_INDEX_USED 0x00000100
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#define EXT_FLAG_80MHZ 0x00000200
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#define EXT_FLAG_SHORTPREAMBLE 0x00000400
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#define EXT_FLAG_SPATIALSTREAMS 0x0001C000
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#define EXT_FLAG_HEFLAG 0x00020000
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#define EXT_FLAG_160MHZ 0x00040000
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#define EXT_FLAGS_RESERVED 0xFFFC0000
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static int hf_peekremote_band = -1;
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static int hf_peekremote_channel = -1;
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static int hf_peekremote_extflags = -1;
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static int hf_peekremote_extflags_11ac = -1;
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static int hf_peekremote_extflags_160mhz = -1;
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static int hf_peekremote_extflags_20mhz_lower = -1;
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static int hf_peekremote_extflags_20mhz_upper = -1;
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static int hf_peekremote_extflags_40mhz = -1;
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static int hf_peekremote_extflags_80mhz = -1;
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static int hf_peekremote_extflags_ampdu = -1;
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static int hf_peekremote_extflags_amsdu = -1;
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static int hf_peekremote_extflags_full_gi = -1;
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static int hf_peekremote_extflags_future_use = -1;
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static int hf_peekremote_extflags_half_gi = -1;
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static int hf_peekremote_extflags_heflag = -1;
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static int hf_peekremote_extflags_reserved = -1;
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static int hf_peekremote_extflags_shortpreamble = -1;
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static int hf_peekremote_extflags_spatialstreams = -1;
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static int hf_peekremote_flags = -1;
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static int hf_peekremote_flags_control_frame = -1;
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static int hf_peekremote_flags_crc_error = -1;
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static int hf_peekremote_flags_frame_error = -1;
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static int hf_peekremote_flags_reserved = -1;
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static int hf_peekremote_frequency = -1;
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static int hf_peekremote_header_size = -1;
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static int hf_peekremote_header_version = -1;
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static int hf_peekremote_magic_number = -1;
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static int hf_peekremote_mcs_index = -1;
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static int hf_peekremote_mcs_index_ac = -1;
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static int hf_peekremote_noise_1_dbm = -1;
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static int hf_peekremote_noise_2_dbm = -1;
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static int hf_peekremote_noise_3_dbm = -1;
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static int hf_peekremote_noise_4_dbm = -1;
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static int hf_peekremote_noise_dbm = -1;
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static int hf_peekremote_noise_percent = -1;
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static int hf_peekremote_packetlength = -1;
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static int hf_peekremote_signal_1_dbm = -1;
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static int hf_peekremote_signal_2_dbm = -1;
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static int hf_peekremote_signal_3_dbm = -1;
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static int hf_peekremote_signal_4_dbm = -1;
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static int hf_peekremote_signal_dbm = -1;
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static int hf_peekremote_signal_percent = -1;
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static int hf_peekremote_slicelength = -1;
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static int hf_peekremote_speed = -1;
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static int hf_peekremote_status = -1;
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static int hf_peekremote_status_protected = -1;
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static int hf_peekremote_status_reserved = -1;
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static int hf_peekremote_status_with_decrypt_error = -1;
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static int hf_peekremote_status_with_short_preamble = -1;
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static int hf_peekremote_timestamp = -1;
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static int hf_peekremote_type = -1;
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static expert_field ei_peekremote_unknown_header_version = EI_INIT;
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static expert_field ei_peekremote_invalid_header_size = EI_INIT;
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static gint ett_peekremote = -1;
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static gint ett_peekremote_flags = -1;
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static gint ett_peekremote_status = -1;
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static gint ett_peekremote_extflags = -1;
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static dissector_handle_t wlan_radio_handle;
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static int
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dissect_peekremote_extflags(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
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{
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proto_tree *extflags_tree;
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proto_item *ti_extflags;
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ti_extflags = proto_tree_add_item(tree, hf_peekremote_extflags, tvb, offset, 4, ENC_BIG_ENDIAN);
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extflags_tree = proto_item_add_subtree(ti_extflags, ett_peekremote_extflags);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_20mhz_lower, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_20mhz_upper, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_40mhz, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_half_gi, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_full_gi, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_ampdu, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_amsdu, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_11ac, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_future_use, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_80mhz, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_shortpreamble, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_spatialstreams, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_heflag, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_160mhz, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(extflags_tree, hf_peekremote_extflags_reserved, tvb, offset, 4, ENC_BIG_ENDIAN);
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return 4;
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}
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static int
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dissect_peekremote_flags(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
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{
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proto_tree *flags_tree;
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proto_item *ti_flags;
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ti_flags = proto_tree_add_item(tree, hf_peekremote_flags, tvb, offset, 1, ENC_NA);
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flags_tree = proto_item_add_subtree(ti_flags, ett_peekremote_flags);
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proto_tree_add_item(flags_tree, hf_peekremote_flags_control_frame, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(flags_tree, hf_peekremote_flags_crc_error, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(flags_tree, hf_peekremote_flags_frame_error, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(flags_tree, hf_peekremote_flags_reserved, tvb, offset, 1, ENC_NA);
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return 1;
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}
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static int
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dissect_peekremote_status(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
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{
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proto_tree *status_tree;
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proto_item *ti_status;
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ti_status = proto_tree_add_item(tree, hf_peekremote_status, tvb, offset, 1, ENC_NA);
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status_tree = proto_item_add_subtree(ti_status, ett_peekremote_status);
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proto_tree_add_item(status_tree, hf_peekremote_status_protected, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(status_tree, hf_peekremote_status_with_decrypt_error, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(status_tree, hf_peekremote_status_with_short_preamble, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(status_tree, hf_peekremote_status_reserved, tvb, offset, 1, ENC_NA);
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return 1;
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}
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static gboolean
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dissect_peekremote_new(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *u _U_)
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{
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static const guint8 magic[4] = { 0x00, 0xFF, 0xAB, 0xCD };
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int offset = 0;
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proto_tree *peekremote_tree = NULL;
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proto_item *ti = NULL;
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proto_item *ti_header_version, *ti_header_size;
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guint8 header_version;
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gint header_size;
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struct ieee_802_11_phdr phdr;
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guint32 extflags;
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guint16 frequency;
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guint16 mcs_index;
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tvbuff_t *next_tvb;
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if (tvb_memeql(tvb, 0, magic, 4) == -1) {
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/*
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* Not big enough to hold the magic number, or doesn't start
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* with the magic number.
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*/
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return FALSE;
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}
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/* We don't have any 802.11 metadata yet. */
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memset(&phdr, 0, sizeof(phdr));
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phdr.fcs_len = 4; /* has an FCS */
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phdr.decrypted = FALSE;
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phdr.datapad = FALSE;
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phdr.phy = PHDR_802_11_PHY_UNKNOWN;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "PEEKREMOTE");
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col_clear(pinfo->cinfo, COL_INFO);
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ti = proto_tree_add_item(tree, proto_peekremote, tvb, 0, -1, ENC_NA);
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peekremote_tree = proto_item_add_subtree(ti, ett_peekremote);
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proto_tree_add_item(peekremote_tree, hf_peekremote_magic_number, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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header_version = tvb_get_guint8(tvb, offset);
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ti_header_version = proto_tree_add_uint(peekremote_tree, hf_peekremote_header_version, tvb, offset, 1, header_version);
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offset += 1;
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header_size = tvb_get_ntohl(tvb, offset);
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ti_header_size = proto_tree_add_uint(peekremote_tree, hf_peekremote_header_size, tvb, offset, 4, header_size);
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offset += 4;
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switch (header_version) {
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case 2:
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if (header_size != 55) {
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expert_add_info(pinfo, ti_header_size, &ei_peekremote_invalid_header_size);
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if (header_size > 9)
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offset += (header_size - 9);
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} else {
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proto_tree_add_item(peekremote_tree, hf_peekremote_type, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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mcs_index = tvb_get_ntohs(tvb, offset);
|
|
extflags = tvb_get_ntohl(tvb, offset+12);
|
|
if (extflags & EXT_FLAG_HEFLAG) {
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_mcs_index_ac, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
phdr.phy = PHDR_802_11_PHY_11AX;
|
|
} else {
|
|
if (extflags & EXT_FLAG_802_11ac) {
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_mcs_index_ac, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
phdr.phy = PHDR_802_11_PHY_11AC;
|
|
} else {
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_mcs_index, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
phdr.phy = PHDR_802_11_PHY_11N;
|
|
phdr.phy_info.info_11n.has_mcs_index = TRUE;
|
|
phdr.phy_info.info_11n.mcs_index = mcs_index;
|
|
}
|
|
}
|
|
offset += 2;
|
|
phdr.has_channel = TRUE;
|
|
phdr.channel = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_channel, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
frequency = tvb_get_ntohl(tvb, offset);
|
|
if (frequency != 0) {
|
|
phdr.has_frequency = TRUE;
|
|
phdr.frequency = frequency;
|
|
}
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_frequency, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_band, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset +=4;
|
|
offset += dissect_peekremote_extflags(tvb, pinfo, peekremote_tree, offset);
|
|
phdr.has_signal_percent = TRUE;
|
|
phdr.signal_percent = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_percent, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
phdr.has_noise_percent = TRUE;
|
|
phdr.noise_percent = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_percent, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
phdr.has_signal_dbm = TRUE;
|
|
phdr.signal_dbm = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
phdr.has_noise_dbm = TRUE;
|
|
phdr.noise_dbm = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_1_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_2_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_3_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_4_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_1_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_2_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_3_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_4_dbm, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_packetlength, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_slicelength, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
offset += dissect_peekremote_flags(tvb, pinfo, peekremote_tree, offset);
|
|
offset += dissect_peekremote_status(tvb, pinfo, peekremote_tree, offset);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_timestamp, tvb, offset, 8, ENC_BIG_ENDIAN);
|
|
phdr.has_tsf_timestamp = TRUE;
|
|
phdr.tsf_timestamp = tvb_get_ntoh64(tvb, offset);
|
|
offset += 8;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
expert_add_info(pinfo, ti_header_version, &ei_peekremote_unknown_header_version);
|
|
if (header_size > 9)
|
|
offset += (header_size - 9);
|
|
break;
|
|
}
|
|
|
|
proto_item_set_end(ti, tvb, offset);
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
call_dissector_with_data(wlan_radio_handle, next_tvb, pinfo, tree, &phdr);
|
|
return TRUE;
|
|
}
|
|
|
|
static int
|
|
dissect_peekremote_legacy(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
{
|
|
tvbuff_t *next_tvb;
|
|
proto_tree *peekremote_tree = NULL;
|
|
proto_item *ti = NULL;
|
|
struct ieee_802_11_phdr phdr;
|
|
guint8 signal_percent;
|
|
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
|
|
/*
|
|
* Check whether this is peekremote-ng, and dissect it as such if it
|
|
* is.
|
|
*/
|
|
if (dissect_peekremote_new(tvb, pinfo, tree, data)) {
|
|
/* Yup, it was peekremote-ng, and it's been dissected as such. */
|
|
return tvb_reported_length(tvb);
|
|
}
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "PEEKREMOTE");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_peekremote, tvb, 0, -1, ENC_NA);
|
|
peekremote_tree = proto_item_add_subtree(ti, ett_peekremote);
|
|
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_dbm, tvb, 0, 1, ENC_NA);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_dbm, tvb, 1, 1, ENC_NA);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_packetlength, tvb, 2, 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_slicelength, tvb, 4, 2, ENC_BIG_ENDIAN);
|
|
dissect_peekremote_flags(tvb, pinfo, peekremote_tree, 6);
|
|
dissect_peekremote_status(tvb, pinfo, peekremote_tree, 7);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_timestamp, tvb, 8, 8, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_speed, tvb, 16, 1, ENC_NA);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_channel, tvb, 17, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_signal_percent, tvb, 18, 1, ENC_NA);
|
|
proto_tree_add_item(peekremote_tree, hf_peekremote_noise_percent, tvb, 19, 1, ENC_NA);
|
|
}
|
|
signal_percent = tvb_get_guint8(tvb, 18);
|
|
proto_item_set_end(ti, tvb, 20);
|
|
next_tvb = tvb_new_subset_remaining(tvb, 20);
|
|
/* When signal = 100 % and coming from ARUBA ERM, it is TX packet and there is no FCS */
|
|
if (GPOINTER_TO_INT(data) == IS_ARUBA && signal_percent == 100) {
|
|
phdr.fcs_len = 0; /* TX packet, no FCS */
|
|
} else {
|
|
phdr.fcs_len = 4; /* We have an FCS */
|
|
}
|
|
phdr.decrypted = FALSE;
|
|
phdr.phy = PHDR_802_11_PHY_UNKNOWN;
|
|
phdr.has_channel = TRUE;
|
|
phdr.channel = tvb_get_guint8(tvb, 17);
|
|
phdr.has_data_rate = TRUE;
|
|
phdr.data_rate = tvb_get_guint8(tvb, 16);
|
|
phdr.has_signal_percent = TRUE;
|
|
phdr.signal_percent = tvb_get_guint8(tvb, 18);
|
|
phdr.has_noise_percent = TRUE;
|
|
phdr.noise_percent = tvb_get_guint8(tvb, 18);
|
|
phdr.has_signal_dbm = TRUE;
|
|
phdr.signal_dbm = tvb_get_guint8(tvb, 0);
|
|
phdr.has_noise_dbm = TRUE;
|
|
phdr.noise_dbm = tvb_get_guint8(tvb, 1);
|
|
phdr.has_tsf_timestamp = TRUE;
|
|
phdr.tsf_timestamp = tvb_get_ntoh64(tvb, 8);
|
|
|
|
/*
|
|
* We don't know they PHY, but we do have the data rate;
|
|
* try to guess the PHY based on the data rate and channel.
|
|
*/
|
|
if (RATE_IS_DSSS(phdr.data_rate)) {
|
|
/* 11b */
|
|
phdr.phy = PHDR_802_11_PHY_11B;
|
|
phdr.phy_info.info_11b.has_short_preamble = FALSE;
|
|
} else if (RATE_IS_OFDM(phdr.data_rate)) {
|
|
/* 11a or 11g, depending on the band. */
|
|
if (CHAN_IS_BG(phdr.channel)) {
|
|
/* 11g */
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = FALSE;
|
|
} else {
|
|
/* 11a */
|
|
phdr.phy = PHDR_802_11_PHY_11A;
|
|
phdr.phy_info.info_11a.has_channel_type = FALSE;
|
|
phdr.phy_info.info_11a.has_turbo_type = FALSE;
|
|
}
|
|
}
|
|
|
|
return 20 + call_dissector_with_data(wlan_radio_handle, next_tvb, pinfo, tree, &phdr);
|
|
}
|
|
|
|
void
|
|
proto_register_peekremote(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_peekremote_channel,
|
|
{ "Channel", "peekremote.channel",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_signal_dbm,
|
|
{ "Signal [dBm]", "peekremote.signal_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_noise_dbm,
|
|
{ "Noise [dBm]", "peekremote.noise_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_packetlength,
|
|
{ "Packet length", "peekremote.packetlength",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_slicelength,
|
|
{ "Slice length", "peekremote.slicelength",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_flags,
|
|
{ "Flags", "peekremote.flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_flags_control_frame,
|
|
{ "Is a Control frame", "peekremote.flags.control_frame",
|
|
FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x01,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_flags_crc_error,
|
|
{ "Has CRC error", "peekremote.flags.has_crc_error",
|
|
FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x02,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_flags_frame_error,
|
|
{ "Has frame error", "peekremote.flags.has_frame_error",
|
|
FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x04,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_flags_reserved,
|
|
{ "Reserved", "peekremote.flags.reserved",
|
|
FT_UINT8, BASE_HEX, NULL, 0xF8,
|
|
"Must be zero", HFILL }
|
|
},
|
|
{ &hf_peekremote_status,
|
|
{ "Status", "peekremote.status",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_status_protected,
|
|
{ "Protected", "peekremote.status.protected",
|
|
FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x04,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_status_with_decrypt_error,
|
|
{ "With decrypt error", "peekremote.status.with_decrypt_error",
|
|
FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_status_with_short_preamble,
|
|
{ "With short preamble", "peekremote.status.with_short_preamble",
|
|
FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x40,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_status_reserved,
|
|
{ "Reserved", "peekremote.status.reserved",
|
|
FT_UINT8, BASE_HEX, NULL, 0xB3,
|
|
"Must be zero", HFILL }
|
|
},
|
|
{ &hf_peekremote_timestamp,
|
|
{ "TSF timestamp", "peekremote.timestamp",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_mcs_index,
|
|
{ "MCS index", "peekremote.mcs_index",
|
|
FT_UINT16, BASE_DEC|BASE_EXT_STRING, &peekremote_mcs_index_vals_ext, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_mcs_index_ac,
|
|
{ "11ac/11ax MCS index", "peekremote.mcs_index_ac",
|
|
FT_UINT16, BASE_DEC, VALS(peekremote_mcs_index_vals_ac), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_signal_percent,
|
|
{ "Signal [percent]", "peekremote.signal_percent",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_noise_percent,
|
|
{ "Noise [percent]", "peekremote.noise_percent",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_speed,
|
|
{ "Data rate [500kHz]", "peekremote.data_rate",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_magic_number,
|
|
{ "Magic number", "peekremote.magic_number",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_header_version,
|
|
{ "Header version", "peekremote.header_version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_header_size,
|
|
{ "Header size", "peekremote.header_size",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_type,
|
|
{ "Type", "peekremote.type",
|
|
FT_UINT32, BASE_DEC, VALS(peekremote_type_vals), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_frequency,
|
|
{ "Frequency [Mhz]", "peekremote.frequency",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_band,
|
|
{ "Band", "peekremote.band",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags,
|
|
{ "Extended flags", "peekremote.extflags",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_20mhz_lower,
|
|
{ "20 MHz Lower", "peekremote.extflags.20mhz_lower",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_20_MHZ_LOWER,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_20mhz_upper,
|
|
{ "20 MHz Upper", "peekremote.extflags.20mhz_upper",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_20_MHZ_UPPER,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_40mhz,
|
|
{ "40 MHz", "peekremote.extflags.40mhz",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_40_MHZ,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_half_gi,
|
|
{ "Half Guard Interval", "peekremote.extflags.half_gi",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_HALF_GI,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_full_gi,
|
|
{ "Full Guard Interval", "peekremote.extflags.full_gi",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_FULL_GI,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_ampdu,
|
|
{ "AMPDU", "peekremote.extflags.ampdu",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_AMPDU,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_amsdu,
|
|
{ "AMSDU", "peekremote.extflags.amsdu",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_AMSDU,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_11ac,
|
|
{ "802.11ac", "peekremote.extflags.11ac",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_802_11ac,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_future_use,
|
|
{ "MCS index used", "peekremote.extflags.future_use",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_MCS_INDEX_USED,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_80mhz,
|
|
{ "80 Mhz", "peekremote.extflags.80mhz",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_80MHZ,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_shortpreamble,
|
|
{ "Short preamble", "peekremote.extflags.shortpreamble",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_SHORTPREAMBLE,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_spatialstreams,
|
|
{ "Spatial streams", "peekremote.extflags.spatialstreams",
|
|
FT_UINT32, BASE_DEC, VALS(spatialstreams_vals), EXT_FLAG_SPATIALSTREAMS,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_heflag,
|
|
{ "802.11ax", "peekremote.extflags.11ax",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_HEFLAG,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_160mhz,
|
|
{ "160Mhz", "peekremote.extflags.160mhz",
|
|
FT_BOOLEAN, 32, TFS(&tfs_yes_no), EXT_FLAG_160MHZ,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_extflags_reserved,
|
|
{ "Reserved", "peekremote.extflags.reserved",
|
|
FT_UINT32, BASE_HEX, NULL, EXT_FLAGS_RESERVED,
|
|
"Must be zero", HFILL }
|
|
},
|
|
{ &hf_peekremote_signal_1_dbm,
|
|
{ "Signal 1 [dBm]", "peekremote.signal_1_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_signal_2_dbm,
|
|
{ "Signal 2 [dBm]", "peekremote.signal_2_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_signal_3_dbm,
|
|
{ "Signal 3 [dBm]", "peekremote.signal_3_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_signal_4_dbm,
|
|
{ "Signal 4 [dBm]", "peekremote.signal_4_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_noise_1_dbm,
|
|
{ "Noise 1 [dBm]", "peekremote.noise_1_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_noise_2_dbm,
|
|
{ "Noise 2 [dBm]", "peekremote.noise_2_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_noise_3_dbm,
|
|
{ "Noise 3 [dBm]", "peekremote.noise_3_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_peekremote_noise_4_dbm,
|
|
{ "Noise 4 [dBm]", "peekremote.noise_4_dbm",
|
|
FT_INT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_peekremote,
|
|
&ett_peekremote_flags,
|
|
&ett_peekremote_status,
|
|
&ett_peekremote_extflags
|
|
};
|
|
static ei_register_info ei[] = {
|
|
{ &ei_peekremote_unknown_header_version, { "peekremote.unknown_header_version", PI_UNDECODED, PI_ERROR, "Unknown header version", EXPFILL }},
|
|
{ &ei_peekremote_invalid_header_size, { "peekremote.invalid_header_size", PI_UNDECODED, PI_ERROR, "Invalid header size for that header version", EXPFILL }},
|
|
};
|
|
expert_module_t *expert_peekremote;
|
|
|
|
proto_peekremote = proto_register_protocol(
|
|
"AiroPeek/OmniPeek encapsulated IEEE 802.11", "PEEKREMOTE", "peekremote");
|
|
proto_register_field_array(proto_peekremote, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_peekremote = expert_register_protocol(proto_peekremote);
|
|
expert_register_field_array(expert_peekremote, ei, array_length(ei));
|
|
|
|
peekremote_handle = register_dissector("peekremote", dissect_peekremote_legacy, proto_peekremote);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_peekremote(void)
|
|
{
|
|
wlan_radio_handle = find_dissector_add_dependency("wlan_radio", proto_peekremote);
|
|
|
|
dissector_add_uint_with_preference("udp.port", PEEKREMOTE_PORT, peekremote_handle);
|
|
|
|
heur_dissector_add("udp", dissect_peekremote_new, "OmniPeek Remote over UDP", "peekremote_udp", proto_peekremote, HEURISTIC_ENABLE);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 2
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=2 tabstop=8 expandtab:
|
|
* :indentSize=2:tabSize=8:noTabs=true:
|
|
*/
|