2683 lines
90 KiB
C
2683 lines
90 KiB
C
/*
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* packet-ieee80211-radiotap.c
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* Decode packets with a Radiotap header
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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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* Copied from README.developer
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <errno.h>
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#include <epan/packet.h>
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#include <epan/capture_dissectors.h>
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#include <wsutil/pint.h>
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#include <epan/crc32-tvb.h>
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#include <wsutil/frequency-utils.h>
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#include <epan/tap.h>
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#include <epan/prefs.h>
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#include <epan/addr_resolv.h>
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#include <epan/expert.h>
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#include "packet-ieee80211.h"
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#include "packet-ieee80211-radiotap-iter.h"
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void proto_register_radiotap(void);
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void proto_reg_handoff_radiotap(void);
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/* protocol */
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static int proto_radiotap = -1;
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static int hf_radiotap_version = -1;
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static int hf_radiotap_pad = -1;
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static int hf_radiotap_length = -1;
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static int hf_radiotap_present = -1;
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static int hf_radiotap_mactime = -1;
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/* static int hf_radiotap_channel = -1; */
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static int hf_radiotap_channel_frequency = -1;
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static int hf_radiotap_channel_flags = -1;
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static int hf_radiotap_channel_flags_turbo = -1;
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static int hf_radiotap_channel_flags_cck = -1;
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static int hf_radiotap_channel_flags_ofdm = -1;
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static int hf_radiotap_channel_flags_2ghz = -1;
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static int hf_radiotap_channel_flags_5ghz = -1;
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static int hf_radiotap_channel_flags_passive = -1;
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static int hf_radiotap_channel_flags_dynamic = -1;
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static int hf_radiotap_channel_flags_gfsk = -1;
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static int hf_radiotap_channel_flags_gsm = -1;
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static int hf_radiotap_channel_flags_sturbo = -1;
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static int hf_radiotap_channel_flags_half = -1;
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static int hf_radiotap_channel_flags_quarter = -1;
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static int hf_radiotap_rxflags = -1;
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static int hf_radiotap_rxflags_badplcp = -1;
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static int hf_radiotap_xchannel_channel = -1;
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static int hf_radiotap_xchannel_frequency = -1;
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static int hf_radiotap_xchannel_flags = -1;
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static int hf_radiotap_xchannel_flags_turbo = -1;
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static int hf_radiotap_xchannel_flags_cck = -1;
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static int hf_radiotap_xchannel_flags_ofdm = -1;
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static int hf_radiotap_xchannel_flags_2ghz = -1;
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static int hf_radiotap_xchannel_flags_5ghz = -1;
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static int hf_radiotap_xchannel_flags_passive = -1;
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static int hf_radiotap_xchannel_flags_dynamic = -1;
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static int hf_radiotap_xchannel_flags_gfsk = -1;
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static int hf_radiotap_xchannel_flags_gsm = -1;
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static int hf_radiotap_xchannel_flags_sturbo = -1;
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static int hf_radiotap_xchannel_flags_half = -1;
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static int hf_radiotap_xchannel_flags_quarter = -1;
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static int hf_radiotap_xchannel_flags_ht20 = -1;
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static int hf_radiotap_xchannel_flags_ht40u = -1;
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static int hf_radiotap_xchannel_flags_ht40d = -1;
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#if 0
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static int hf_radiotap_xchannel_maxpower = -1;
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#endif
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static int hf_radiotap_fhss_hopset = -1;
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static int hf_radiotap_fhss_pattern = -1;
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static int hf_radiotap_datarate = -1;
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static int hf_radiotap_antenna = -1;
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static int hf_radiotap_dbm_antsignal = -1;
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static int hf_radiotap_db_antsignal = -1;
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static int hf_radiotap_dbm_antnoise = -1;
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static int hf_radiotap_db_antnoise = -1;
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static int hf_radiotap_tx_attenuation = -1;
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static int hf_radiotap_db_tx_attenuation = -1;
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static int hf_radiotap_txpower = -1;
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static int hf_radiotap_vendor_ns = -1;
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static int hf_radiotap_ven_oui = -1;
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static int hf_radiotap_ven_subns = -1;
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static int hf_radiotap_ven_skip = -1;
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static int hf_radiotap_ven_data = -1;
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static int hf_radiotap_mcs = -1;
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static int hf_radiotap_mcs_known = -1;
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static int hf_radiotap_mcs_have_bw = -1;
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static int hf_radiotap_mcs_have_index = -1;
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static int hf_radiotap_mcs_have_gi = -1;
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static int hf_radiotap_mcs_have_format = -1;
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static int hf_radiotap_mcs_have_fec = -1;
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static int hf_radiotap_mcs_have_stbc = -1;
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static int hf_radiotap_mcs_have_ness = -1;
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static int hf_radiotap_mcs_ness_bit1 = -1;
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static int hf_radiotap_mcs_bw = -1;
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static int hf_radiotap_mcs_index = -1;
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static int hf_radiotap_mcs_gi = -1;
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static int hf_radiotap_mcs_format = -1;
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static int hf_radiotap_mcs_fec = -1;
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static int hf_radiotap_mcs_stbc = -1;
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static int hf_radiotap_mcs_ness_bit0 = -1;
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static int hf_radiotap_ampdu = -1;
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static int hf_radiotap_ampdu_ref = -1;
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static int hf_radiotap_ampdu_flags = -1;
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static int hf_radiotap_ampdu_flags_report_zerolen = -1;
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static int hf_radiotap_ampdu_flags_is_zerolen = -1;
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static int hf_radiotap_ampdu_flags_last_known = -1;
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static int hf_radiotap_ampdu_flags_is_last = -1;
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static int hf_radiotap_ampdu_flags_delim_crc_error = -1;
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static int hf_radiotap_ampdu_delim_crc = -1;
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static int hf_radiotap_vht = -1;
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static int hf_radiotap_vht_known = -1;
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static int hf_radiotap_vht_have_stbc = -1;
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static int hf_radiotap_vht_have_txop_ps = -1;
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static int hf_radiotap_vht_have_gi = -1;
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static int hf_radiotap_vht_have_sgi_nsym_da = -1;
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static int hf_radiotap_vht_have_ldpc_extra = -1;
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static int hf_radiotap_vht_have_bf = -1;
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static int hf_radiotap_vht_have_bw = -1;
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static int hf_radiotap_vht_have_gid = -1;
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static int hf_radiotap_vht_have_p_aid = -1;
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static int hf_radiotap_vht_stbc = -1;
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static int hf_radiotap_vht_txop_ps = -1;
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static int hf_radiotap_vht_gi = -1;
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static int hf_radiotap_vht_sgi_nsym_da = -1;
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static int hf_radiotap_vht_ldpc_extra = -1;
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static int hf_radiotap_vht_bf = -1;
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static int hf_radiotap_vht_bw = -1;
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static int hf_radiotap_vht_nsts[4] = { -1, -1, -1, -1 };
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static int hf_radiotap_vht_mcs[4] = { -1, -1, -1, -1 };
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static int hf_radiotap_vht_nss[4] = { -1, -1, -1, -1 };
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static int hf_radiotap_vht_coding[4] = { -1, -1, -1, -1 };
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static int hf_radiotap_vht_datarate[4] = { -1, -1, -1, -1 };
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static int hf_radiotap_vht_gid = -1;
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static int hf_radiotap_vht_p_aid = -1;
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static int hf_radiotap_vht_user = -1;
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/* "Present" flags */
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static int hf_radiotap_present_tsft = -1;
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static int hf_radiotap_present_flags = -1;
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static int hf_radiotap_present_rate = -1;
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static int hf_radiotap_present_channel = -1;
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static int hf_radiotap_present_fhss = -1;
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static int hf_radiotap_present_dbm_antsignal = -1;
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static int hf_radiotap_present_dbm_antnoise = -1;
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static int hf_radiotap_present_lock_quality = -1;
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static int hf_radiotap_present_tx_attenuation = -1;
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static int hf_radiotap_present_db_tx_attenuation = -1;
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static int hf_radiotap_present_dbm_tx_power = -1;
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static int hf_radiotap_present_antenna = -1;
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static int hf_radiotap_present_db_antsignal = -1;
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static int hf_radiotap_present_db_antnoise = -1;
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static int hf_radiotap_present_hdrfcs = -1;
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static int hf_radiotap_present_rxflags = -1;
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static int hf_radiotap_present_xchannel = -1;
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static int hf_radiotap_present_mcs = -1;
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static int hf_radiotap_present_ampdu = -1;
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static int hf_radiotap_present_vht = -1;
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static int hf_radiotap_present_reserved = -1;
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static int hf_radiotap_present_rtap_ns = -1;
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static int hf_radiotap_present_vendor_ns = -1;
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static int hf_radiotap_present_ext = -1;
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/* "present.flags" flags */
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static int hf_radiotap_flags = -1;
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static int hf_radiotap_flags_cfp = -1;
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static int hf_radiotap_flags_preamble = -1;
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static int hf_radiotap_flags_wep = -1;
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static int hf_radiotap_flags_frag = -1;
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static int hf_radiotap_flags_fcs = -1;
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static int hf_radiotap_flags_datapad = -1;
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static int hf_radiotap_flags_badfcs = -1;
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static int hf_radiotap_flags_shortgi = -1;
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static int hf_radiotap_quality = -1;
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static int hf_radiotap_fcs = -1;
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static int hf_radiotap_fcs_bad = -1;
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static gint ett_radiotap = -1;
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static gint ett_radiotap_present = -1;
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static gint ett_radiotap_flags = -1;
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static gint ett_radiotap_rxflags = -1;
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static gint ett_radiotap_channel_flags = -1;
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static gint ett_radiotap_xchannel_flags = -1;
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static gint ett_radiotap_vendor = -1;
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static gint ett_radiotap_mcs = -1;
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static gint ett_radiotap_mcs_known = -1;
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static gint ett_radiotap_ampdu = -1;
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static gint ett_radiotap_ampdu_flags = -1;
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static gint ett_radiotap_vht = -1;
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static gint ett_radiotap_vht_known = -1;
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static gint ett_radiotap_vht_user = -1;
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static expert_field ei_radiotap_data_past_header = EI_INIT;
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static expert_field ei_radiotap_present_reserved = EI_INIT;
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static expert_field ei_radiotap_present = EI_INIT;
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static dissector_handle_t ieee80211_radio_handle;
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static int radiotap_tap = -1;
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/* Settings */
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static gboolean radiotap_bit14_fcs = FALSE;
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static gboolean radiotap_interpret_high_rates_as_mcs = FALSE;
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struct _radiotap_info {
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guint radiotap_length;
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guint32 rate;
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gint8 dbm_antsignal;
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gint8 dbm_antnoise;
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guint32 freq;
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guint32 flags;
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guint64 tsft;
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};
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#define BITNO_32(x) (((x) >> 16) ? 16 + BITNO_16((x) >> 16) : BITNO_16((x)))
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#define BITNO_16(x) (((x) >> 8) ? 8 + BITNO_8((x) >> 8) : BITNO_8((x)))
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#define BITNO_8(x) (((x) >> 4) ? 4 + BITNO_4((x) >> 4) : BITNO_4((x)))
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#define BITNO_4(x) (((x) >> 2) ? 2 + BITNO_2((x) >> 2) : BITNO_2((x)))
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#define BITNO_2(x) (((x) & 2) ? 1 : 0)
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#define BIT(n) (1U << n)
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/* not officially defined (yet) */
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#define IEEE80211_RADIOTAP_F_SHORTGI 0x80
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#define IEEE80211_RADIOTAP_XCHANNEL 18
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/* Official specifcation:
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*
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* http://www.radiotap.org/
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*
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* Unofficial and historical specifications:
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* http://madwifi-project.org/wiki/DevDocs/RadiotapHeader
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* NetBSD's ieee80211_radiotap.h file
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*/
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/*
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* Useful combinations of channel characteristics.
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*/
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#define IEEE80211_CHAN_FHSS \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
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#define IEEE80211_CHAN_DSSS \
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(IEEE80211_CHAN_2GHZ)
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#define IEEE80211_CHAN_A \
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(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
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#define IEEE80211_CHAN_B \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
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#define IEEE80211_CHAN_PUREG \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
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#define IEEE80211_CHAN_G \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
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#define IEEE80211_CHAN_108A \
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(IEEE80211_CHAN_A | IEEE80211_CHAN_TURBO)
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#define IEEE80211_CHAN_108G \
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(IEEE80211_CHAN_G | IEEE80211_CHAN_TURBO)
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#define IEEE80211_CHAN_108PUREG \
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(IEEE80211_CHAN_PUREG | IEEE80211_CHAN_TURBO)
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#define IEEE80211_CHAN_ST \
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(IEEE80211_CHAN_108A | IEEE80211_CHAN_STURBO)
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#define MAX_MCS_VHT_INDEX 9
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/*
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* Maps a VHT bandwidth index to ieee80211_vhtinfo.rates index.
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*/
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static const int ieee80211_vht_bw2rate_index[] = {
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/* 20Mhz total */ 0,
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/* 40Mhz total */ 1, 0, 0,
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/* 80Mhz total */ 2, 1, 1, 0, 0, 0, 0,
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/* 160Mhz total */ 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0
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};
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struct mcs_vht_info {
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const char *modulation;
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const char *coding_rate;
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float rates[4][2];
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};
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static const struct mcs_vht_info ieee80211_vhtinfo[MAX_MCS_VHT_INDEX+1] = {
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/* MCS 0 */
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{ "BPSK", "1/2",
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{ /* 20 Mhz */ { 6.5f, /* SGI */ 7.2f, },
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/* 40 Mhz */ { 13.5f, /* SGI */ 15.0f, },
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/* 80 Mhz */ { 29.3f, /* SGI */ 32.5f, },
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/* 160 Mhz */ { 58.5f, /* SGI */ 65.0f, }
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}
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},
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/* MCS 1 */
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{ "QPSK", "1/2",
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{ /* 20 Mhz */ { 13.0f, /* SGI */ 14.4f, },
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/* 40 Mhz */ { 27.0f, /* SGI */ 30.0f, },
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/* 80 Mhz */ { 58.5f, /* SGI */ 65.0f, },
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/* 160 Mhz */ { 117.0f, /* SGI */ 130.0f, }
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}
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},
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/* MCS 2 */
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{ "QPSK", "3/4",
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{ /* 20 Mhz */ { 19.5f, /* SGI */ 21.7f, },
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/* 40 Mhz */ { 40.5f, /* SGI */ 45.0f, },
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/* 80 Mhz */ { 87.8f, /* SGI */ 97.5f, },
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/* 160 Mhz */ { 175.5f, /* SGI */ 195.0f, }
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}
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},
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/* MCS 3 */
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{ "16-QAM", "1/2",
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{ /* 20 Mhz */ { 26.0f, /* SGI */ 28.9f, },
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/* 40 Mhz */ { 54.0f, /* SGI */ 60.0f, },
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/* 80 Mhz */ { 117.0f, /* SGI */ 130.0f, },
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/* 160 Mhz */ { 234.0f, /* SGI */ 260.0f, }
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}
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},
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/* MCS 4 */
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{ "16-QAM", "3/4",
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{ /* 20 Mhz */ { 39.0f, /* SGI */ 43.3f, },
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/* 40 Mhz */ { 81.0f, /* SGI */ 90.0f, },
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/* 80 Mhz */ { 175.5f, /* SGI */ 195.0f, },
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/* 160 Mhz */ { 351.0f, /* SGI */ 390.0f, }
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}
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},
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/* MCS 5 */
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{ "64-QAM", "2/3",
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{ /* 20 Mhz */ { 52.0f, /* SGI */ 57.8f, },
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/* 40 Mhz */ { 108.0f, /* SGI */ 120.0f, },
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/* 80 Mhz */ { 234.0f, /* SGI */ 260.0f, },
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/* 160 Mhz */ { 468.0f, /* SGI */ 520.0f, }
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}
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},
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/* MCS 6 */
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{ "64-QAM", "3/4",
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{ /* 20 Mhz */ { 58.5f, /* SGI */ 65.0f, },
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/* 40 Mhz */ { 121.5f, /* SGI */ 135.0f, },
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/* 80 Mhz */ { 263.3f, /* SGI */ 292.5f, },
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/* 160 Mhz */ { 526.5f, /* SGI */ 585.0f, }
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}
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},
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/* MCS 7 */
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{ "64-QAM", "5/6",
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{ /* 20 Mhz */ { 65.0f, /* SGI */ 72.2f, },
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/* 40 Mhz */ { 135.0f, /* SGI */ 150.0f, },
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/* 80 Mhz */ { 292.5f, /* SGI */ 325.0f, },
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/* 160 Mhz */ { 585.0f, /* SGI */ 650.0f, }
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}
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},
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/* MCS 8 */
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{ "256-QAM", "3/4",
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{ /* 20 Mhz */ { 78.0f, /* SGI */ 86.7f, },
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/* 40 Mhz */ { 162.0f, /* SGI */ 180.0f, },
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/* 80 Mhz */ { 351.0f, /* SGI */ 390.0f, },
|
|
/* 160 Mhz */ { 702.0f, /* SGI */ 780.0f, }
|
|
}
|
|
},
|
|
/* MCS 9 */
|
|
{ "256-QAM", "5/6",
|
|
{ /* 20 Mhz */ { 0.0f, /* SGI */ 0.0f, },
|
|
/* 40 Mhz */ { 180.0f, /* SGI */ 200.0f, },
|
|
/* 80 Mhz */ { 390.0f, /* SGI */ 433.3f, },
|
|
/* 160 Mhz */ { 780.0f, /* SGI */ 866.7f, }
|
|
}
|
|
}
|
|
};
|
|
|
|
/* In order by value */
|
|
static const value_string vht_bandwidth[] = {
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20, "20 MHz" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40, "40 MHz" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20L, "20 MHz lower" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20U, "20 MHz upper" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_80, "80 MHz" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40L, "40 MHz lower" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40U, "40 MHz upper" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20LL, "20 MHz, channel 1/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20LU, "20 MHz, channel 2/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20UL, "20 MHz, channel 3/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20UU, "20 MHz, channel 4/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_160, "160 MHz" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_80L, "80 MHz lower" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_80U, "80 MHz upper" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40LL, "40 MHz, channel 1/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40LU, "40 MHz, channel 2/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40UL, "40 MHz, channel 3/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_40UU, "40 MHz, channel 4/4" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20LLL, "20 MHz, channel 1/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20LLU, "20 MHz, channel 2/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20LUL, "20 MHz, channel 3/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20LUU, "20 MHz, channel 4/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20ULL, "20 MHz, channel 5/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20ULU, "20 MHz, channel 6/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20UUL, "20 MHz, channel 7/8" },
|
|
{ IEEE80211_RADIOTAP_VHT_BW_20UUU, "20 MHz, channel 8/8" },
|
|
{ 0, NULL }
|
|
};
|
|
static value_string_ext vht_bandwidth_ext = VALUE_STRING_EXT_INIT(vht_bandwidth);
|
|
|
|
static const value_string mcs_bandwidth[] = {
|
|
{ IEEE80211_RADIOTAP_MCS_BW_20, "20 MHz" },
|
|
{ IEEE80211_RADIOTAP_MCS_BW_40, "40 MHz" },
|
|
{ IEEE80211_RADIOTAP_MCS_BW_20L, "20 MHz lower" },
|
|
{ IEEE80211_RADIOTAP_MCS_BW_20U, "20 MHz upper" },
|
|
{0, NULL}
|
|
};
|
|
|
|
static const value_string mcs_format[] = {
|
|
{ 0, "mixed" },
|
|
{ 1, "greenfield" },
|
|
{0, NULL},
|
|
};
|
|
|
|
static const value_string mcs_fec[] = {
|
|
{ 0, "BCC" },
|
|
{ 1, "LDPC" },
|
|
{0, NULL}
|
|
};
|
|
|
|
static const value_string mcs_gi[] = {
|
|
{ 0, "long" },
|
|
{ 1, "short" },
|
|
{0, NULL}
|
|
};
|
|
|
|
static const true_false_string preamble_type = {
|
|
"Short",
|
|
"Long",
|
|
};
|
|
|
|
/*
|
|
* The NetBSD ieee80211_radiotap man page
|
|
* (http://netbsd.gw.com/cgi-bin/man-cgi?ieee80211_radiotap+9+NetBSD-current)
|
|
* says:
|
|
*
|
|
* Radiotap capture fields must be naturally aligned. That is, 16-, 32-,
|
|
* and 64-bit fields must begin on 16-, 32-, and 64-bit boundaries, respec-
|
|
* tively. In this way, drivers can avoid unaligned accesses to radiotap
|
|
* capture fields. radiotap-compliant drivers must insert padding before a
|
|
* capture field to ensure its natural alignment. radiotap-compliant packet
|
|
* dissectors, such as tcpdump(8), expect the padding.
|
|
*/
|
|
|
|
static gboolean
|
|
capture_radiotap(const guchar * pd, int offset, int len, capture_packet_info_t *cpinfo, const union wtap_pseudo_header *pseudo_header _U_)
|
|
{
|
|
guint16 it_len;
|
|
guint32 present, xpresent;
|
|
guint8 rflags;
|
|
const struct ieee80211_radiotap_header *hdr;
|
|
|
|
if (!BYTES_ARE_IN_FRAME(offset, len,
|
|
sizeof(struct ieee80211_radiotap_header))) {
|
|
return FALSE;
|
|
}
|
|
hdr = (const struct ieee80211_radiotap_header *)pd;
|
|
it_len = pletoh16(&hdr->it_len);
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, it_len))
|
|
return FALSE;
|
|
|
|
if (it_len > len) {
|
|
/* Header length is bigger than total packet length */
|
|
return FALSE;
|
|
}
|
|
|
|
if (it_len < sizeof(struct ieee80211_radiotap_header)) {
|
|
/* Header length is shorter than fixed-length portion of header */
|
|
return FALSE;
|
|
}
|
|
|
|
present = pletoh32(&hdr->it_present);
|
|
offset += (int)sizeof(struct ieee80211_radiotap_header);
|
|
it_len -= (int)sizeof(struct ieee80211_radiotap_header);
|
|
|
|
/* skip over other present bitmaps */
|
|
xpresent = present;
|
|
while (xpresent & BIT(IEEE80211_RADIOTAP_EXT)) {
|
|
if (!BYTES_ARE_IN_FRAME(offset, 4, it_len)) {
|
|
return FALSE;
|
|
}
|
|
xpresent = pletoh32(pd + offset);
|
|
offset += 4;
|
|
it_len -= 4;
|
|
}
|
|
|
|
rflags = 0;
|
|
|
|
/*
|
|
* IEEE80211_RADIOTAP_TSFT is the lowest-order bit,
|
|
* just skip over it.
|
|
*/
|
|
if (present & BIT(IEEE80211_RADIOTAP_TSFT)) {
|
|
/* align it properly */
|
|
if (offset & 7) {
|
|
int pad = 8 - (offset & 7);
|
|
offset += pad;
|
|
it_len -= pad;
|
|
}
|
|
|
|
if (it_len < 8) {
|
|
/* No room in header for this field. */
|
|
return FALSE;
|
|
}
|
|
/* That field is present, and it's 8 bytes long. */
|
|
offset += 8;
|
|
it_len -= 8;
|
|
}
|
|
|
|
/*
|
|
* IEEE80211_RADIOTAP_FLAGS is the next bit.
|
|
*/
|
|
if (present & BIT(IEEE80211_RADIOTAP_FLAGS)) {
|
|
if (it_len < 1) {
|
|
/* No room in header for this field. */
|
|
return FALSE;
|
|
}
|
|
/* That field is present; fetch it. */
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, 1)) {
|
|
return FALSE;
|
|
}
|
|
rflags = pd[offset];
|
|
}
|
|
|
|
/* 802.11 header follows */
|
|
if (rflags & IEEE80211_RADIOTAP_F_DATAPAD)
|
|
return capture_ieee80211_datapad(pd, offset + it_len, len, cpinfo, pseudo_header);
|
|
|
|
return capture_ieee80211(pd, offset + it_len, len, cpinfo, pseudo_header);
|
|
}
|
|
|
|
static int
|
|
dissect_radiotap(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* unused_data _U_)
|
|
{
|
|
proto_tree *radiotap_tree = NULL;
|
|
proto_tree *pt = NULL, *present_tree = NULL;
|
|
proto_tree *ft;
|
|
proto_item *ti = NULL;
|
|
proto_item *hidden_item;
|
|
int offset;
|
|
tvbuff_t *next_tvb;
|
|
guint8 version;
|
|
guint length;
|
|
guint16 cflags;
|
|
guint32 freq;
|
|
proto_item *rate_ti;
|
|
gint8 dbm, db;
|
|
gboolean have_rflags = FALSE;
|
|
guint8 rflags = 0;
|
|
guint32 xcflags;
|
|
/* backward compat with bit 14 == fcs in header */
|
|
proto_item *hdr_fcs_ti = NULL;
|
|
int hdr_fcs_offset = 0;
|
|
guint32 sent_fcs = 0;
|
|
guint32 calc_fcs;
|
|
gint err = -ENOENT;
|
|
void *data;
|
|
struct _radiotap_info *radiotap_info;
|
|
static struct _radiotap_info rtp_info_arr;
|
|
struct ieee80211_radiotap_iterator iter;
|
|
struct ieee_802_11_phdr phdr;
|
|
|
|
/* our non-standard overrides */
|
|
static struct radiotap_override overrides[] = {
|
|
{IEEE80211_RADIOTAP_XCHANNEL, 4, 8}, /* xchannel */
|
|
|
|
/* keep last */
|
|
{14, 4, 4}, /* FCS in header */
|
|
};
|
|
guint n_overrides = array_length(overrides);
|
|
|
|
if (!radiotap_bit14_fcs)
|
|
n_overrides--;
|
|
|
|
radiotap_info = &rtp_info_arr;
|
|
|
|
/* We don't have any 802.11 metadata yet. */
|
|
memset(&phdr, 0, sizeof(phdr));
|
|
phdr.fcs_len = -1;
|
|
phdr.decrypted = FALSE;
|
|
phdr.datapad = FALSE;
|
|
phdr.phy = PHDR_802_11_PHY_UNKNOWN;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "WLAN");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
version = tvb_get_guint8(tvb, 0);
|
|
length = tvb_get_letohs(tvb, 2);
|
|
|
|
radiotap_info->radiotap_length = length;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Radiotap Capture v%u, Length %u",
|
|
version, length);
|
|
|
|
/* Dissect the packet */
|
|
if (tree) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_radiotap,
|
|
tvb, 0, length,
|
|
"Radiotap Header v%u, Length %u",
|
|
version, length);
|
|
radiotap_tree = proto_item_add_subtree(ti, ett_radiotap);
|
|
proto_tree_add_uint(radiotap_tree, hf_radiotap_version,
|
|
tvb, 0, 1, version);
|
|
proto_tree_add_item(radiotap_tree, hf_radiotap_pad,
|
|
tvb, 1, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_uint(radiotap_tree, hf_radiotap_length,
|
|
tvb, 2, 2, length);
|
|
}
|
|
|
|
data = tvb_memdup(wmem_packet_scope(), tvb, 0, length);
|
|
|
|
if (ieee80211_radiotap_iterator_init(&iter, (struct ieee80211_radiotap_header *)data, length, NULL)) {
|
|
if (tree)
|
|
proto_item_append_text(ti, " (invalid)");
|
|
/* maybe the length was correct anyway ... */
|
|
goto hand_off_to_80211;
|
|
}
|
|
|
|
iter.overrides = overrides;
|
|
iter.n_overrides = n_overrides;
|
|
|
|
/* Add the "present flags" bitmaps. */
|
|
if (tree) {
|
|
guchar *bmap_start = (guchar *)data + 4;
|
|
guint n_bitmaps = (guint)(iter.this_arg - bmap_start) / 4;
|
|
guint i;
|
|
gboolean rtap_ns;
|
|
gboolean rtap_ns_next = TRUE;
|
|
guint rtap_ns_offset;
|
|
guint rtap_ns_offset_next = 0;
|
|
|
|
pt = proto_tree_add_item(radiotap_tree, hf_radiotap_present,
|
|
tvb, 4, n_bitmaps * 4,
|
|
ENC_NA);
|
|
|
|
for (i = 0; i < n_bitmaps; i++) {
|
|
guint32 bmap = pletoh32(bmap_start + 4 * i);
|
|
|
|
rtap_ns_offset = rtap_ns_offset_next;
|
|
rtap_ns_offset_next += 32;
|
|
|
|
present_tree =
|
|
proto_item_add_subtree(pt, ett_radiotap_present);
|
|
|
|
offset = 4 * i;
|
|
|
|
rtap_ns = rtap_ns_next;
|
|
|
|
/* Evaluate what kind of namespaces will come next */
|
|
if (bmap & BIT(IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE)) {
|
|
rtap_ns_next = TRUE;
|
|
rtap_ns_offset_next = 0;
|
|
}
|
|
if (bmap & BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE))
|
|
rtap_ns_next = FALSE;
|
|
if ((bmap & (BIT(IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE) |
|
|
BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE)))
|
|
== (BIT(IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE) |
|
|
BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE))) {
|
|
expert_add_info_format(pinfo, pt, &ei_radiotap_present,
|
|
"Both radiotap and vendor namespace specified in bitmask word %u",
|
|
i);
|
|
goto malformed;
|
|
}
|
|
|
|
if (!rtap_ns)
|
|
goto always_bits;
|
|
|
|
/* Currently, we don't know anything about bits >= 32 */
|
|
if (rtap_ns_offset)
|
|
goto always_bits;
|
|
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_tsft, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_flags, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_rate, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_channel, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_fhss, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_dbm_antsignal,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_dbm_antnoise,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_lock_quality,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_tx_attenuation,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_db_tx_attenuation,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_dbm_tx_power,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_antenna, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_db_antsignal,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_db_antnoise,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
if (radiotap_bit14_fcs) {
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_hdrfcs,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
} else {
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_rxflags,
|
|
tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
}
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_xchannel, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_mcs, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_ampdu, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_vht, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
ti = proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_reserved, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
/* Check if Reserved/Not Defined is not "zero" */
|
|
if(bmap & IEEE80211_RADIOTAP_NOTDEFINED)
|
|
{
|
|
expert_add_info(pinfo, pt, &ei_radiotap_present_reserved);
|
|
}
|
|
always_bits:
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_rtap_ns, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_vendor_ns, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(present_tree,
|
|
hf_radiotap_present_ext, tvb,
|
|
offset + 4, 4, ENC_LITTLE_ENDIAN);
|
|
}
|
|
}
|
|
|
|
while (!(err = ieee80211_radiotap_iterator_next(&iter))) {
|
|
offset = (int)((guchar *) iter.this_arg - (guchar *) data);
|
|
|
|
if (iter.this_arg_index == IEEE80211_RADIOTAP_VENDOR_NAMESPACE
|
|
&& tree) {
|
|
proto_tree *vt, *ven_tree = NULL;
|
|
const gchar *manuf_name;
|
|
guint8 subns;
|
|
|
|
manuf_name = tvb_get_manuf_name(tvb, offset);
|
|
subns = tvb_get_guint8(tvb, offset+3);
|
|
|
|
vt = proto_tree_add_bytes_format_value(radiotap_tree,
|
|
hf_radiotap_vendor_ns,
|
|
tvb, offset,
|
|
iter.this_arg_size,
|
|
NULL,
|
|
"%s-%d",
|
|
manuf_name, subns);
|
|
ven_tree = proto_item_add_subtree(vt, ett_radiotap_vendor);
|
|
proto_tree_add_bytes_format_value(ven_tree,
|
|
hf_radiotap_ven_oui, tvb,
|
|
offset, 3, NULL,
|
|
"%s", manuf_name);
|
|
proto_tree_add_item(ven_tree, hf_radiotap_ven_subns,
|
|
tvb, offset + 3, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(ven_tree, hf_radiotap_ven_skip, tvb,
|
|
offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(ven_tree, hf_radiotap_ven_data, tvb,
|
|
offset + 6, iter.this_arg_size - 6,
|
|
ENC_NA);
|
|
}
|
|
|
|
if (!iter.is_radiotap_ns)
|
|
continue;
|
|
|
|
switch (iter.this_arg_index) {
|
|
|
|
case IEEE80211_RADIOTAP_TSFT:
|
|
radiotap_info->tsft = tvb_get_letoh64(tvb, offset);
|
|
phdr.tsf_timestamp = radiotap_info->tsft;
|
|
phdr.has_tsf_timestamp = TRUE;
|
|
if (tree) {
|
|
proto_tree_add_uint64(radiotap_tree,
|
|
hf_radiotap_mactime, tvb,
|
|
offset, 8,
|
|
radiotap_info->tsft);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_FLAGS: {
|
|
rflags = tvb_get_guint8(tvb, offset);
|
|
have_rflags = TRUE;
|
|
if (rflags & IEEE80211_RADIOTAP_F_DATAPAD)
|
|
phdr.datapad = TRUE;
|
|
if (rflags & IEEE80211_RADIOTAP_F_FCS)
|
|
phdr.fcs_len = 4;
|
|
else
|
|
phdr.fcs_len = 0;
|
|
|
|
if (tree) {
|
|
proto_tree *flags_tree;
|
|
|
|
ft = proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_flags,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
flags_tree =
|
|
proto_item_add_subtree(ft,
|
|
ett_radiotap_flags);
|
|
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_cfp,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_preamble,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_wep,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_frag,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_fcs,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_datapad,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_badfcs,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flags_tree,
|
|
hf_radiotap_flags_shortgi,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case IEEE80211_RADIOTAP_RATE: {
|
|
guint32 rate;
|
|
rate = tvb_get_guint8(tvb, offset);
|
|
/*
|
|
* XXX On FreeBSD rate & 0x80 means we have an MCS. On
|
|
* Linux and AirPcap it does not. (What about
|
|
* Mac OS X, NetBSD, OpenBSD, and DragonFly BSD?)
|
|
*
|
|
* This is an issue either for proprietary extensions
|
|
* to 11a or 11g, which do exist, or for 11n
|
|
* implementations that stuff a rate value into
|
|
* this field, which also appear to exist.
|
|
*/
|
|
if (radiotap_interpret_high_rates_as_mcs &&
|
|
rate >= 0x80 && rate <= (0x80+76)) {
|
|
/*
|
|
* XXX - we don't know the channel width
|
|
* or guard interval length, so we can't
|
|
* convert this to a data rate.
|
|
*
|
|
* If you want us to show a data rate,
|
|
* use the MCS field, not the Rate field;
|
|
* the MCS field includes not only the
|
|
* MCS index, it also includes bandwidth
|
|
* and guard interval information.
|
|
*
|
|
* XXX - can we get the channel width
|
|
* from XChannel and the guard interval
|
|
* information from Flags, at least on
|
|
* FreeBSD?
|
|
*/
|
|
if (tree) {
|
|
proto_tree_add_uint(radiotap_tree,
|
|
hf_radiotap_mcs_index,
|
|
tvb, offset, 1,
|
|
rate & 0x7f);
|
|
}
|
|
} else {
|
|
col_add_fstr(pinfo->cinfo, COL_TX_RATE, "%d.%d",
|
|
rate / 2, rate & 1 ? 5 : 0);
|
|
if (tree) {
|
|
proto_tree_add_float_format(radiotap_tree,
|
|
hf_radiotap_datarate,
|
|
tvb, offset, 1,
|
|
(float)rate / 2,
|
|
"Data Rate: %.1f Mb/s",
|
|
(float)rate / 2);
|
|
}
|
|
radiotap_info->rate = rate;
|
|
phdr.has_data_rate = TRUE;
|
|
phdr.data_rate = rate;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case IEEE80211_RADIOTAP_CHANNEL: {
|
|
freq = tvb_get_letohs(tvb, offset);
|
|
if (freq != 0) {
|
|
/*
|
|
* XXX - some captures have 0, which is
|
|
* obviously bogus.
|
|
*/
|
|
gint calc_channel;
|
|
|
|
phdr.has_frequency = TRUE;
|
|
phdr.frequency = freq;
|
|
calc_channel = ieee80211_mhz_to_chan(freq);
|
|
if (calc_channel != -1) {
|
|
phdr.has_channel = TRUE;
|
|
phdr.channel = calc_channel;
|
|
}
|
|
}
|
|
memset(&phdr.phy_info, 0, sizeof(phdr.phy_info));
|
|
cflags = tvb_get_letohs(tvb, offset + 2);
|
|
switch (cflags & IEEE80211_CHAN_ALLTURBO) {
|
|
|
|
case IEEE80211_CHAN_FHSS:
|
|
phdr.phy = PHDR_802_11_PHY_11_FHSS;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_DSSS:
|
|
phdr.phy = PHDR_802_11_PHY_11_DSSS;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_A:
|
|
phdr.phy = PHDR_802_11_PHY_11A;
|
|
phdr.phy_info.info_11a.has_turbo_type = TRUE;
|
|
phdr.phy_info.info_11a.turbo_type = PHDR_802_11A_TURBO_TYPE_NORMAL;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_B:
|
|
phdr.phy = PHDR_802_11_PHY_11B;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11b.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11b.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_PUREG:
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = TRUE;
|
|
phdr.phy_info.info_11g.mode = PHDR_802_11G_MODE_NORMAL;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11g.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11g.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_G:
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = TRUE;
|
|
phdr.phy_info.info_11g.mode = PHDR_802_11G_MODE_NORMAL;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11g.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11g.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_108A:
|
|
phdr.phy = PHDR_802_11_PHY_11A;
|
|
phdr.phy_info.info_11a.has_turbo_type = TRUE;
|
|
/* We assume non-STURBO is dynamic turbo */
|
|
phdr.phy_info.info_11a.turbo_type = PHDR_802_11A_TURBO_TYPE_DYNAMIC_TURBO;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_108PUREG:
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = TRUE;
|
|
phdr.phy_info.info_11g.mode = PHDR_802_11G_MODE_SUPER_G;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11g.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11g.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
}
|
|
if (tree) {
|
|
gchar *chan_str;
|
|
static const int * channel_flags[] = {
|
|
&hf_radiotap_channel_flags_turbo,
|
|
&hf_radiotap_channel_flags_cck,
|
|
&hf_radiotap_channel_flags_ofdm,
|
|
&hf_radiotap_channel_flags_2ghz,
|
|
&hf_radiotap_channel_flags_5ghz,
|
|
&hf_radiotap_channel_flags_passive,
|
|
&hf_radiotap_channel_flags_dynamic,
|
|
&hf_radiotap_channel_flags_gfsk,
|
|
&hf_radiotap_channel_flags_gsm,
|
|
&hf_radiotap_channel_flags_sturbo,
|
|
&hf_radiotap_channel_flags_half,
|
|
&hf_radiotap_channel_flags_quarter,
|
|
NULL
|
|
};
|
|
|
|
chan_str = ieee80211_mhz_to_str(freq);
|
|
col_add_fstr(pinfo->cinfo,
|
|
COL_FREQ_CHAN, "%s", chan_str);
|
|
proto_tree_add_uint_format_value(radiotap_tree,
|
|
hf_radiotap_channel_frequency,
|
|
tvb, offset, 2, freq,
|
|
"%s",
|
|
chan_str);
|
|
g_free(chan_str);
|
|
|
|
/* We're already 2-byte aligned. */
|
|
proto_tree_add_bitmask(radiotap_tree, tvb, offset + 2, hf_radiotap_channel_flags, ett_radiotap_channel_flags, channel_flags, ENC_LITTLE_ENDIAN);
|
|
radiotap_info->freq = freq;
|
|
radiotap_info->flags = cflags;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case IEEE80211_RADIOTAP_FHSS:
|
|
/*
|
|
* Just in case we didn't have a Channel field or
|
|
* it said this was something other than 11 legacy
|
|
* FHSS.
|
|
*/
|
|
phdr.phy = PHDR_802_11_PHY_11_FHSS;
|
|
phdr.phy_info.info_11_fhss.has_hop_set = TRUE;
|
|
phdr.phy_info.info_11_fhss.hop_set = tvb_get_guint8(tvb, offset);
|
|
phdr.phy_info.info_11_fhss.has_hop_pattern = TRUE;
|
|
phdr.phy_info.info_11_fhss.hop_pattern = tvb_get_guint8(tvb, offset + 1);
|
|
proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_fhss_hopset, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_fhss_pattern, tvb,
|
|
offset + 1, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
|
|
dbm = (gint8)tvb_get_guint8(tvb, offset);
|
|
phdr.has_signal_dbm = TRUE;
|
|
phdr.signal_dbm = dbm;
|
|
col_add_fstr(pinfo->cinfo, COL_RSSI, "%d dBm", dbm);
|
|
proto_tree_add_int_format_value(radiotap_tree,
|
|
hf_radiotap_dbm_antsignal,
|
|
tvb, offset, 1, dbm,
|
|
"%d dBm",
|
|
dbm);
|
|
radiotap_info->dbm_antsignal = dbm;
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_DBM_ANTNOISE:
|
|
dbm = (gint8) tvb_get_guint8(tvb, offset);
|
|
phdr.has_noise_dbm = TRUE;
|
|
phdr.noise_dbm = dbm;
|
|
if (tree) {
|
|
proto_tree_add_int_format_value(radiotap_tree,
|
|
hf_radiotap_dbm_antnoise,
|
|
tvb, offset, 1, dbm,
|
|
"%d dBm",
|
|
dbm);
|
|
}
|
|
radiotap_info->dbm_antnoise = dbm;
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_LOCK_QUALITY:
|
|
if (tree) {
|
|
proto_tree_add_uint(radiotap_tree,
|
|
hf_radiotap_quality, tvb,
|
|
offset, 2,
|
|
tvb_get_letohs(tvb,
|
|
offset));
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_TX_ATTENUATION:
|
|
proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_tx_attenuation, tvb,
|
|
offset, 2, ENC_BIG_ENDIAN);
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_DB_TX_ATTENUATION:
|
|
proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_db_tx_attenuation, tvb,
|
|
offset, 2, ENC_BIG_ENDIAN);
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_DBM_TX_POWER:
|
|
if (tree) {
|
|
proto_tree_add_int(radiotap_tree,
|
|
hf_radiotap_txpower, tvb,
|
|
offset, 1,
|
|
tvb_get_guint8(tvb, offset));
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_ANTENNA:
|
|
if (tree) {
|
|
proto_tree_add_uint(radiotap_tree,
|
|
hf_radiotap_antenna, tvb,
|
|
offset, 1,
|
|
tvb_get_guint8(tvb,
|
|
offset));
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
|
|
db = tvb_get_guint8(tvb, offset);
|
|
col_add_fstr(pinfo->cinfo, COL_RSSI, "%u dB", db);
|
|
if (tree) {
|
|
proto_tree_add_uint_format_value(radiotap_tree,
|
|
hf_radiotap_db_antsignal,
|
|
tvb, offset, 1, db,
|
|
"%u dB",
|
|
db);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_DB_ANTNOISE:
|
|
db = tvb_get_guint8(tvb, offset);
|
|
if (tree) {
|
|
proto_tree_add_uint_format_value(radiotap_tree,
|
|
hf_radiotap_db_antnoise,
|
|
tvb, offset, 1, db,
|
|
"%u dB",
|
|
db);
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_RADIOTAP_RX_FLAGS: {
|
|
if (radiotap_bit14_fcs) {
|
|
if (tree) {
|
|
sent_fcs = tvb_get_ntohl(tvb, offset);
|
|
hdr_fcs_ti = proto_tree_add_uint(radiotap_tree,
|
|
hf_radiotap_fcs, tvb,
|
|
offset, 4, sent_fcs);
|
|
hdr_fcs_offset = offset;
|
|
}
|
|
} else {
|
|
static const int * rxflags[] = {
|
|
&hf_radiotap_rxflags_badplcp,
|
|
NULL
|
|
};
|
|
|
|
proto_tree_add_bitmask(radiotap_tree, tvb, offset, hf_radiotap_rxflags, ett_radiotap_rxflags, rxflags, ENC_LITTLE_ENDIAN);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case IEEE80211_RADIOTAP_XCHANNEL: {
|
|
xcflags = tvb_get_letohl(tvb, offset);
|
|
switch (xcflags & IEEE80211_CHAN_ALLTURBO) {
|
|
|
|
case IEEE80211_CHAN_FHSS:
|
|
/*
|
|
* Don't overwrite any FHSS information
|
|
* we've seen before this.
|
|
*/
|
|
if (phdr.phy != PHDR_802_11_PHY_11_FHSS) {
|
|
phdr.phy = PHDR_802_11_PHY_11_FHSS;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_DSSS:
|
|
phdr.phy = PHDR_802_11_PHY_11_DSSS;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_A:
|
|
phdr.phy = PHDR_802_11_PHY_11A;
|
|
phdr.phy_info.info_11a.has_turbo_type = TRUE;
|
|
phdr.phy_info.info_11a.turbo_type = PHDR_802_11A_TURBO_TYPE_NORMAL;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_B:
|
|
phdr.phy = PHDR_802_11_PHY_11B;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11b.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11b.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_PUREG:
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = TRUE;
|
|
phdr.phy_info.info_11g.mode = PHDR_802_11G_MODE_NORMAL;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11g.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11g.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_G:
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = TRUE;
|
|
phdr.phy_info.info_11g.mode = PHDR_802_11G_MODE_NORMAL;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11g.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11g.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_108A:
|
|
phdr.phy = PHDR_802_11_PHY_11A;
|
|
phdr.phy_info.info_11a.has_turbo_type = TRUE;
|
|
/* We assume non-STURBO is dynamic turbo */
|
|
phdr.phy_info.info_11a.turbo_type = PHDR_802_11A_TURBO_TYPE_DYNAMIC_TURBO;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_108PUREG:
|
|
phdr.phy = PHDR_802_11_PHY_11G;
|
|
phdr.phy_info.info_11g.has_mode = TRUE;
|
|
phdr.phy_info.info_11g.mode = PHDR_802_11G_MODE_SUPER_G;
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11g.has_short_preamble = TRUE;
|
|
phdr.phy_info.info_11g.short_preamble = (rflags & IEEE80211_RADIOTAP_F_SHORTPRE) != 0;
|
|
}
|
|
break;
|
|
|
|
case IEEE80211_CHAN_ST:
|
|
phdr.phy = PHDR_802_11_PHY_11A;
|
|
phdr.phy_info.info_11a.has_turbo_type = TRUE;
|
|
phdr.phy_info.info_11a.turbo_type = PHDR_802_11A_TURBO_TYPE_STATIC_TURBO;
|
|
break;
|
|
|
|
case IEEE80211_CHAN_A|IEEE80211_CHAN_HT20:
|
|
case IEEE80211_CHAN_A|IEEE80211_CHAN_HT40D:
|
|
case IEEE80211_CHAN_A|IEEE80211_CHAN_HT40U:
|
|
case IEEE80211_CHAN_G|IEEE80211_CHAN_HT20:
|
|
case IEEE80211_CHAN_G|IEEE80211_CHAN_HT40U:
|
|
case IEEE80211_CHAN_G|IEEE80211_CHAN_HT40D:
|
|
phdr.phy = PHDR_802_11_PHY_11N;
|
|
|
|
/*
|
|
* This doesn't supply "short GI" information,
|
|
* so use the 0x80 bit in the Flags field,
|
|
* if we have it; it's "Currently unspecified
|
|
* but used" for that purpose, according to
|
|
* the radiotap.org page for that field.
|
|
*/
|
|
if (have_rflags) {
|
|
phdr.phy_info.info_11n.has_short_gi = TRUE;
|
|
if (rflags & 0x80)
|
|
phdr.phy_info.info_11n.short_gi = 1;
|
|
else
|
|
phdr.phy_info.info_11n.short_gi = 0;
|
|
}
|
|
break;
|
|
}
|
|
freq = tvb_get_letohs(tvb, offset + 4);
|
|
if (freq != 0) {
|
|
/*
|
|
* XXX - some captures have 0, which is
|
|
* obviously bogus.
|
|
*/
|
|
phdr.has_frequency = TRUE;
|
|
phdr.frequency = freq;
|
|
}
|
|
phdr.has_channel = TRUE;
|
|
phdr.channel = tvb_get_guint8(tvb, offset + 6);
|
|
if (tree) {
|
|
static const int * xchannel_flags[] = {
|
|
&hf_radiotap_xchannel_flags_turbo,
|
|
&hf_radiotap_xchannel_flags_cck,
|
|
&hf_radiotap_xchannel_flags_ofdm,
|
|
&hf_radiotap_xchannel_flags_2ghz,
|
|
&hf_radiotap_xchannel_flags_5ghz,
|
|
&hf_radiotap_xchannel_flags_passive,
|
|
&hf_radiotap_xchannel_flags_dynamic,
|
|
&hf_radiotap_xchannel_flags_gfsk,
|
|
&hf_radiotap_xchannel_flags_gsm,
|
|
&hf_radiotap_xchannel_flags_sturbo,
|
|
&hf_radiotap_xchannel_flags_half,
|
|
&hf_radiotap_xchannel_flags_quarter,
|
|
&hf_radiotap_xchannel_flags_ht20,
|
|
&hf_radiotap_xchannel_flags_ht40u,
|
|
&hf_radiotap_xchannel_flags_ht40d,
|
|
NULL
|
|
};
|
|
|
|
proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_xchannel_channel,
|
|
tvb, offset + 6, 1,
|
|
ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(radiotap_tree,
|
|
hf_radiotap_xchannel_frequency,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_bitmask(radiotap_tree, tvb, offset, hf_radiotap_xchannel_flags, ett_radiotap_xchannel_flags, xchannel_flags, ENC_LITTLE_ENDIAN);
|
|
|
|
|
|
#if 0
|
|
proto_tree_add_uint(radiotap_tree,
|
|
hf_radiotap_xchannel_maxpower,
|
|
tvb, offset + 7, 1, maxpower);
|
|
#endif
|
|
}
|
|
break;
|
|
}
|
|
case IEEE80211_RADIOTAP_MCS: {
|
|
proto_tree *mcs_tree = NULL;
|
|
guint8 mcs_known, mcs_flags;
|
|
guint8 mcs;
|
|
guint bandwidth;
|
|
guint gi_length;
|
|
gboolean can_calculate_rate;
|
|
|
|
/*
|
|
* Start out assuming that we can calculate the rate;
|
|
* if we are missing any of the MCS index, channel
|
|
* width, or guard interval length, we can't.
|
|
*/
|
|
can_calculate_rate = TRUE;
|
|
|
|
mcs_known = tvb_get_guint8(tvb, offset);
|
|
/*
|
|
* If there's actually any data here, not an
|
|
* empty field, this is 802.11n.
|
|
*/
|
|
if (mcs_known != 0) {
|
|
phdr.phy = PHDR_802_11_PHY_11N;
|
|
memset(&phdr.phy_info.info_11n, 0, sizeof(phdr.phy_info.info_11n));
|
|
}
|
|
|
|
mcs_flags = tvb_get_guint8(tvb, offset + 1);
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_MCS) {
|
|
mcs = tvb_get_guint8(tvb, offset + 2);
|
|
phdr.phy_info.info_11n.has_mcs_index = TRUE;
|
|
phdr.phy_info.info_11n.mcs_index = mcs;
|
|
} else {
|
|
mcs = 0;
|
|
can_calculate_rate = FALSE; /* no MCS index */
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_BW) {
|
|
phdr.phy_info.info_11n.has_bandwidth = TRUE;
|
|
phdr.phy_info.info_11n.bandwidth = (mcs_flags & IEEE80211_RADIOTAP_MCS_BW_MASK);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_GI) {
|
|
gi_length = (mcs_flags & IEEE80211_RADIOTAP_MCS_SGI) ?
|
|
1 : 0;
|
|
phdr.phy_info.info_11n.has_short_gi = TRUE;
|
|
phdr.phy_info.info_11n.short_gi = (gi_length == 0);
|
|
} else {
|
|
gi_length = 0;
|
|
can_calculate_rate = FALSE; /* no GI width */
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_FMT) {
|
|
phdr.phy_info.info_11n.has_greenfield = TRUE;
|
|
phdr.phy_info.info_11n.greenfield = (mcs_flags & IEEE80211_RADIOTAP_MCS_FMT_GF) != 0;
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_FEC) {
|
|
phdr.phy_info.info_11n.has_fec = TRUE;
|
|
phdr.phy_info.info_11n.fec = (mcs_flags & IEEE80211_RADIOTAP_MCS_FEC_LDPC) ? 1 : 0;
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_STBC) {
|
|
phdr.phy_info.info_11n.has_stbc_streams = TRUE;
|
|
phdr.phy_info.info_11n.stbc_streams = (mcs_flags & IEEE80211_RADIOTAP_MCS_STBC_MASK) >> IEEE80211_RADIOTAP_MCS_STBC_SHIFT;
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_NESS) {
|
|
phdr.phy_info.info_11n.has_ness = TRUE;
|
|
/* This is stored a bit weirdly */
|
|
phdr.phy_info.info_11n.ness =
|
|
((mcs_known & IEEE80211_RADIOTAP_MCS_NESS_BIT1) >> 6) |
|
|
((mcs_flags & IEEE80211_RADIOTAP_MCS_NESS_BIT0) >> 7);
|
|
}
|
|
|
|
if (tree) {
|
|
proto_item *it;
|
|
static const int * mcs_haves_with_ness_bit1[] = {
|
|
&hf_radiotap_mcs_have_bw,
|
|
&hf_radiotap_mcs_have_index,
|
|
&hf_radiotap_mcs_have_gi,
|
|
&hf_radiotap_mcs_have_format,
|
|
&hf_radiotap_mcs_have_fec,
|
|
&hf_radiotap_mcs_have_stbc,
|
|
&hf_radiotap_mcs_have_ness,
|
|
&hf_radiotap_mcs_ness_bit1,
|
|
NULL
|
|
};
|
|
static const int * mcs_haves_without_ness_bit1[] = {
|
|
&hf_radiotap_mcs_have_bw,
|
|
&hf_radiotap_mcs_have_index,
|
|
&hf_radiotap_mcs_have_gi,
|
|
&hf_radiotap_mcs_have_format,
|
|
&hf_radiotap_mcs_have_fec,
|
|
&hf_radiotap_mcs_have_stbc,
|
|
&hf_radiotap_mcs_have_ness,
|
|
NULL
|
|
};
|
|
|
|
it = proto_tree_add_item(radiotap_tree, hf_radiotap_mcs,
|
|
tvb, offset, 3, ENC_NA);
|
|
mcs_tree = proto_item_add_subtree(it, ett_radiotap_mcs);
|
|
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_NESS)
|
|
proto_tree_add_bitmask(mcs_tree, tvb, offset, hf_radiotap_mcs_known, ett_radiotap_mcs_known, mcs_haves_with_ness_bit1, ENC_LITTLE_ENDIAN);
|
|
else
|
|
proto_tree_add_bitmask(mcs_tree, tvb, offset, hf_radiotap_mcs_known, ett_radiotap_mcs_known, mcs_haves_without_ness_bit1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_BW) {
|
|
bandwidth = ((mcs_flags & IEEE80211_RADIOTAP_MCS_BW_MASK) == IEEE80211_RADIOTAP_MCS_BW_40) ?
|
|
1 : 0;
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_bw,
|
|
tvb, offset + 1, 1, mcs_flags);
|
|
} else {
|
|
bandwidth = 0;
|
|
can_calculate_rate = FALSE; /* no bandwidth */
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_GI) {
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_gi,
|
|
tvb, offset + 1, 1, mcs_flags);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_FMT) {
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_format,
|
|
tvb, offset + 1, 1, mcs_flags);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_FEC) {
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_fec,
|
|
tvb, offset + 1, 1, mcs_flags);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_STBC) {
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_stbc,
|
|
tvb, offset + 1, 1, mcs_flags);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_NESS) {
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_ness_bit0,
|
|
tvb, offset + 1, 1, mcs_flags);
|
|
}
|
|
if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_MCS) {
|
|
proto_tree_add_uint(mcs_tree, hf_radiotap_mcs_index,
|
|
tvb, offset + 2, 1, mcs);
|
|
}
|
|
|
|
/*
|
|
* If we have the MCS index, channel width, and
|
|
* guard interval length, and the MCS index is
|
|
* valid, we can compute the rate. If the resulting
|
|
* rate is non-zero, report it. (If it's zero,
|
|
* it's an MCS/channel width/GI combination that
|
|
* 802.11n doesn't support.)
|
|
*/
|
|
if (can_calculate_rate && mcs <= MAX_MCS_INDEX
|
|
&& ieee80211_ht_Dbps[mcs] != 0) {
|
|
float rate = ieee80211_htrate(mcs, bandwidth, gi_length);
|
|
col_add_fstr(pinfo->cinfo, COL_TX_RATE, "%.1f", rate);
|
|
if (tree) {
|
|
rate_ti = proto_tree_add_float_format(radiotap_tree,
|
|
hf_radiotap_datarate,
|
|
tvb, offset, 3, rate,
|
|
"Data Rate: %.1f Mb/s", rate);
|
|
PROTO_ITEM_SET_GENERATED(rate_ti);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case IEEE80211_RADIOTAP_AMPDU_STATUS: {
|
|
proto_item *it;
|
|
proto_tree *ampdu_tree = NULL, *ampdu_flags_tree;
|
|
guint16 ampdu_flags;
|
|
|
|
ampdu_flags = tvb_get_letohs(tvb, offset + 4);
|
|
|
|
if (tree) {
|
|
it = proto_tree_add_item(radiotap_tree, hf_radiotap_ampdu,
|
|
tvb, offset, 8, ENC_NA);
|
|
ampdu_tree = proto_item_add_subtree(it, ett_radiotap_ampdu);
|
|
|
|
proto_tree_add_item(ampdu_tree, hf_radiotap_ampdu_ref,
|
|
tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
|
|
it = proto_tree_add_item(ampdu_tree, hf_radiotap_ampdu_flags,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
ampdu_flags_tree = proto_item_add_subtree(it, ett_radiotap_ampdu_flags);
|
|
proto_tree_add_item(ampdu_flags_tree, hf_radiotap_ampdu_flags_report_zerolen,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(ampdu_flags_tree, hf_radiotap_ampdu_flags_is_zerolen,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(ampdu_flags_tree, hf_radiotap_ampdu_flags_last_known,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(ampdu_flags_tree, hf_radiotap_ampdu_flags_is_last,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(ampdu_flags_tree, hf_radiotap_ampdu_flags_delim_crc_error,
|
|
tvb, offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
}
|
|
if (ampdu_flags & IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN) {
|
|
if (ampdu_tree)
|
|
proto_tree_add_item(ampdu_tree, hf_radiotap_ampdu_delim_crc,
|
|
tvb, offset + 6, 1, ENC_NA);
|
|
}
|
|
break;
|
|
}
|
|
case IEEE80211_RADIOTAP_VHT: {
|
|
proto_item *it, *it_root = NULL;
|
|
proto_tree *vht_tree = NULL, *vht_known_tree = NULL, *user_tree = NULL;
|
|
guint16 known;
|
|
guint8 vht_flags, bw, mcs_nss;
|
|
guint bandwidth = 0;
|
|
guint gi_length = 0;
|
|
guint nss = 0;
|
|
guint mcs = 0;
|
|
gboolean can_calculate_rate;
|
|
guint i;
|
|
|
|
/*
|
|
* Start out assuming that we can calculate the rate;
|
|
* if we are missing any of the MCS index, channel
|
|
* width, or guard interval length, we can't.
|
|
*/
|
|
can_calculate_rate = TRUE;
|
|
|
|
known = tvb_get_letohs(tvb, offset);
|
|
/*
|
|
* If there's actually any data here, not an
|
|
* empty field, this is 802.11ac.
|
|
*/
|
|
if (known != 0) {
|
|
phdr.phy = PHDR_802_11_PHY_11AC;
|
|
}
|
|
vht_flags = tvb_get_guint8(tvb, offset + 2);
|
|
if (tree) {
|
|
it_root = proto_tree_add_item(radiotap_tree, hf_radiotap_vht,
|
|
tvb, offset, 12, ENC_NA);
|
|
vht_tree = proto_item_add_subtree(it_root, ett_radiotap_vht);
|
|
it = proto_tree_add_item(vht_tree, hf_radiotap_vht_known,
|
|
tvb, offset, 2, known);
|
|
vht_known_tree = proto_item_add_subtree(it, ett_radiotap_vht_known);
|
|
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_stbc,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_txop_ps,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_gi,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_sgi_nsym_da,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_ldpc_extra,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_bf,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_bw,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_gid,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(vht_known_tree, hf_radiotap_vht_have_p_aid,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_STBC) {
|
|
phdr.phy_info.info_11ac.has_stbc = TRUE;
|
|
phdr.phy_info.info_11ac.stbc = (vht_flags & IEEE80211_RADIOTAP_VHT_STBC) != 0;
|
|
if (vht_tree)
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_stbc,
|
|
tvb, offset + 2, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_TXOP_PS) {
|
|
phdr.phy_info.info_11ac.has_txop_ps_not_allowed = TRUE;
|
|
phdr.phy_info.info_11ac.txop_ps_not_allowed = (vht_flags & IEEE80211_RADIOTAP_VHT_TXOP_PS) != 0;
|
|
if (vht_tree)
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_txop_ps,
|
|
tvb, offset + 2, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_GI) {
|
|
gi_length = (vht_flags & IEEE80211_RADIOTAP_VHT_SGI) ? 1 : 0;
|
|
phdr.phy_info.info_11ac.has_short_gi = TRUE;
|
|
phdr.phy_info.info_11ac.short_gi = gi_length;
|
|
if (vht_tree) {
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_gi,
|
|
tvb, offset + 2, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
} else {
|
|
can_calculate_rate = FALSE; /* no GI width */
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_SGI_NSYM_DA) {
|
|
phdr.phy_info.info_11ac.has_short_gi_nsym_disambig = TRUE;
|
|
phdr.phy_info.info_11ac.short_gi_nsym_disambig = (vht_flags & IEEE80211_RADIOTAP_VHT_SGI_NSYM_DA) != 0;
|
|
if (vht_tree) {
|
|
it = proto_tree_add_item(vht_tree, hf_radiotap_vht_sgi_nsym_da,
|
|
tvb, offset + 2, 1, ENC_LITTLE_ENDIAN);
|
|
if ((vht_flags & IEEE80211_RADIOTAP_VHT_SGI_NSYM_DA) &&
|
|
(known & IEEE80211_RADIOTAP_VHT_HAVE_GI) &&
|
|
!(vht_flags & IEEE80211_RADIOTAP_VHT_SGI))
|
|
proto_item_append_text(it, " (invalid)");
|
|
}
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_LDPC_EXTRA) {
|
|
phdr.phy_info.info_11ac.has_ldpc_extra_ofdm_symbol = TRUE;
|
|
phdr.phy_info.info_11ac.ldpc_extra_ofdm_symbol = (vht_flags & IEEE80211_RADIOTAP_VHT_LDPC_EXTRA) != 0;
|
|
if (vht_tree) {
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_ldpc_extra,
|
|
tvb, offset + 2, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_BF) {
|
|
phdr.phy_info.info_11ac.has_beamformed = TRUE;
|
|
phdr.phy_info.info_11ac.beamformed = (vht_flags & IEEE80211_RADIOTAP_VHT_BF) != 0;
|
|
if (vht_tree)
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_bf,
|
|
tvb, offset + 2, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_BW) {
|
|
bw = tvb_get_guint8(tvb, offset + 3) & IEEE80211_RADIOTAP_VHT_BW_MASK;
|
|
phdr.phy_info.info_11ac.has_bandwidth = TRUE;
|
|
phdr.phy_info.info_11ac.bandwidth = bw;
|
|
if (bw < sizeof(ieee80211_vht_bw2rate_index)/sizeof(ieee80211_vht_bw2rate_index[0]))
|
|
bandwidth = ieee80211_vht_bw2rate_index[bw];
|
|
else
|
|
can_calculate_rate = FALSE; /* unknown bandwidth */
|
|
|
|
if (vht_tree)
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_bw,
|
|
tvb, offset + 3, 1, ENC_LITTLE_ENDIAN);
|
|
} else {
|
|
can_calculate_rate = FALSE; /* no bandwidth */
|
|
}
|
|
|
|
for(i=0; i<4; i++) {
|
|
mcs_nss = tvb_get_guint8(tvb, offset + 4 + i);
|
|
nss = (mcs_nss & IEEE80211_RADIOTAP_VHT_NSS);
|
|
mcs = (mcs_nss & IEEE80211_RADIOTAP_VHT_MCS) >> 4;
|
|
phdr.phy_info.info_11ac.mcs[i] = mcs;
|
|
phdr.phy_info.info_11ac.nss[i] = nss;
|
|
|
|
if (nss) {
|
|
/*
|
|
* OK, there's some data here.
|
|
* If we haven't already flagged this
|
|
* as VHT, do so.
|
|
*/
|
|
if (phdr.phy != PHDR_802_11_PHY_11AC) {
|
|
phdr.phy = PHDR_802_11_PHY_11AC;
|
|
}
|
|
phdr.phy_info.info_11ac.has_fec = TRUE;
|
|
if (vht_tree) {
|
|
it = proto_tree_add_item(vht_tree, hf_radiotap_vht_user,
|
|
tvb, offset + 4, 5, ENC_NA);
|
|
proto_item_append_text(it, " %d: MCS %u", i, mcs);
|
|
user_tree = proto_item_add_subtree(it, ett_radiotap_vht_user);
|
|
|
|
it = proto_tree_add_item(user_tree, hf_radiotap_vht_mcs[i],
|
|
tvb, offset + 4 + i, 1,
|
|
ENC_LITTLE_ENDIAN);
|
|
if (mcs > MAX_MCS_VHT_INDEX) {
|
|
proto_item_append_text(it, " (invalid)");
|
|
} else {
|
|
proto_item_append_text(it, " (%s %s)",
|
|
ieee80211_vhtinfo[mcs].modulation,
|
|
ieee80211_vhtinfo[mcs].coding_rate);
|
|
}
|
|
|
|
proto_tree_add_item(user_tree, hf_radiotap_vht_nss[i],
|
|
tvb, offset + 4 + i, 1, ENC_LITTLE_ENDIAN);
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_STBC) {
|
|
guint nsts;
|
|
proto_item *nsts_ti;
|
|
|
|
if (vht_flags & IEEE80211_RADIOTAP_VHT_STBC)
|
|
nsts = 2 * nss;
|
|
else
|
|
nsts = nss;
|
|
nsts_ti = proto_tree_add_uint(user_tree, hf_radiotap_vht_nsts[i],
|
|
tvb, offset + 4 + i, 1, nsts);
|
|
PROTO_ITEM_SET_GENERATED(nsts_ti);
|
|
}
|
|
proto_tree_add_item(user_tree, hf_radiotap_vht_coding[i],
|
|
tvb, offset + 8, 1,ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
if (can_calculate_rate && mcs <= MAX_MCS_VHT_INDEX) {
|
|
float rate = ieee80211_vhtinfo[mcs].rates[bandwidth][gi_length] * nss;
|
|
if (rate != 0.0f && user_tree) {
|
|
rate_ti = proto_tree_add_float_format(user_tree,
|
|
hf_radiotap_vht_datarate[i],
|
|
tvb, offset, 12, rate,
|
|
"Data Rate: %.1f Mb/s", rate);
|
|
PROTO_ITEM_SET_GENERATED(rate_ti);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
phdr.phy_info.info_11ac.fec = tvb_get_guint8(tvb, offset + 8);
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_GID) {
|
|
phdr.phy_info.info_11ac.has_group_id = TRUE;
|
|
phdr.phy_info.info_11ac.group_id = tvb_get_guint8(tvb, offset + 9);
|
|
if (vht_tree)
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_gid,
|
|
tvb, offset+9, 1, ENC_LITTLE_ENDIAN);
|
|
}
|
|
|
|
if (known & IEEE80211_RADIOTAP_VHT_HAVE_PAID) {
|
|
phdr.phy_info.info_11ac.has_partial_aid = TRUE;
|
|
phdr.phy_info.info_11ac.partial_aid = tvb_get_letohs(tvb, offset + 10);
|
|
if (vht_tree) {
|
|
proto_tree_add_item(vht_tree, hf_radiotap_vht_p_aid,
|
|
tvb, offset+10, 2, ENC_LITTLE_ENDIAN);
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (err != -ENOENT && tree) {
|
|
expert_add_info(pinfo, pt, &ei_radiotap_data_past_header);
|
|
malformed:
|
|
proto_item_append_text(ti, " (malformed)");
|
|
}
|
|
|
|
hand_off_to_80211:
|
|
/* Grab the rest of the frame. */
|
|
next_tvb = tvb_new_subset_remaining(tvb, length);
|
|
|
|
/* If we had an in-header FCS, check it.
|
|
* This can only happen if the backward-compat configuration option
|
|
* is chosen by the user. */
|
|
if (hdr_fcs_ti) {
|
|
guint captured_length = tvb_captured_length(next_tvb);
|
|
guint reported_length = tvb_reported_length(next_tvb);
|
|
guint fcs_len = (phdr.fcs_len > 0) ? phdr.fcs_len : 0;
|
|
|
|
/* It would be very strange for the header to have an FCS for the
|
|
* frame *and* the frame to have the FCS at the end, but it's possible, so
|
|
* take that into account by using the FCS length recorded in pinfo. */
|
|
|
|
/* Watch out for [erroneously] short frames */
|
|
if (captured_length >= reported_length &&
|
|
captured_length > fcs_len) {
|
|
calc_fcs =
|
|
crc32_802_tvb(next_tvb, tvb_captured_length(next_tvb) - fcs_len);
|
|
|
|
/* By virtue of hdr_fcs_ti being set, we know that 'tree' is set,
|
|
* so there's no need to check it here. */
|
|
if (calc_fcs == sent_fcs) {
|
|
proto_item_append_text(hdr_fcs_ti,
|
|
" [correct]");
|
|
} else {
|
|
proto_item_append_text(hdr_fcs_ti,
|
|
" [incorrect, should be 0x%08x]",
|
|
calc_fcs);
|
|
hidden_item =
|
|
proto_tree_add_boolean(radiotap_tree,
|
|
hf_radiotap_fcs_bad,
|
|
tvb, hdr_fcs_offset,
|
|
4, TRUE);
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
}
|
|
} else {
|
|
proto_item_append_text(hdr_fcs_ti,
|
|
" [cannot verify - not enough data]");
|
|
}
|
|
}
|
|
|
|
/* dissect the 802.11 packet next */
|
|
call_dissector_with_data(ieee80211_radio_handle, next_tvb, pinfo,
|
|
tree, &phdr);
|
|
|
|
tap_queue_packet(radiotap_tap, pinfo, radiotap_info);
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void proto_register_radiotap(void)
|
|
{
|
|
|
|
static hf_register_info hf[] = {
|
|
{&hf_radiotap_version,
|
|
{"Header revision", "radiotap.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Version of radiotap header format", HFILL}},
|
|
|
|
{&hf_radiotap_pad,
|
|
{"Header pad", "radiotap.pad",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Padding", HFILL}},
|
|
|
|
{&hf_radiotap_length,
|
|
{"Header length", "radiotap.length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Length of header including version, pad, length and data fields", HFILL}},
|
|
|
|
{&hf_radiotap_present,
|
|
{"Present flags", "radiotap.present",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"Bitmask indicating which fields are present", HFILL}},
|
|
|
|
#define RADIOTAP_MASK(name) BIT(IEEE80211_RADIOTAP_ ##name)
|
|
|
|
/* Boolean 'present' flags */
|
|
{&hf_radiotap_present_tsft,
|
|
{"TSFT", "radiotap.present.tsft",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(TSFT),
|
|
"Specifies if the Time Synchronization Function Timer field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_flags,
|
|
{"Flags", "radiotap.present.flags",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(FLAGS),
|
|
"Specifies if the channel flags field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_rate,
|
|
{"Rate", "radiotap.present.rate",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(RATE),
|
|
"Specifies if the transmit/receive rate field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_channel,
|
|
{"Channel", "radiotap.present.channel",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(CHANNEL),
|
|
"Specifies if the transmit/receive frequency field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_fhss,
|
|
{"FHSS", "radiotap.present.fhss",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(FHSS),
|
|
"Specifies if the hop set and pattern is present for frequency hopping radios", HFILL}},
|
|
|
|
{&hf_radiotap_present_dbm_antsignal,
|
|
{"dBm Antenna Signal", "radiotap.present.dbm_antsignal",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(DBM_ANTSIGNAL),
|
|
"Specifies if the antenna signal strength in dBm is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_dbm_antnoise,
|
|
{"dBm Antenna Noise", "radiotap.present.dbm_antnoise",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(DBM_ANTNOISE),
|
|
"Specifies if the RF noise power at antenna field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_lock_quality,
|
|
{"Lock Quality", "radiotap.present.lock_quality",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(LOCK_QUALITY),
|
|
"Specifies if the signal quality field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_tx_attenuation,
|
|
{"TX Attenuation", "radiotap.present.tx_attenuation",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(TX_ATTENUATION),
|
|
"Specifies if the transmit power distance from max power field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_db_tx_attenuation,
|
|
{"dB TX Attenuation", "radiotap.present.db_tx_attenuation",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(DB_TX_ATTENUATION),
|
|
"Specifies if the transmit power distance from max power (in dB) field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_dbm_tx_power,
|
|
{"dBm TX Power", "radiotap.present.dbm_tx_power",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(DBM_TX_POWER),
|
|
"Specifies if the transmit power (in dBm) field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_antenna,
|
|
{"Antenna", "radiotap.present.antenna",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(ANTENNA),
|
|
"Specifies if the antenna number field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_db_antsignal,
|
|
{"dB Antenna Signal", "radiotap.present.db_antsignal",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(DB_ANTSIGNAL),
|
|
"Specifies if the RF signal power at antenna in dB field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_db_antnoise,
|
|
{"dB Antenna Noise", "radiotap.present.db_antnoise",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(DB_ANTNOISE),
|
|
"Specifies if the RF signal power at antenna in dBm field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_rxflags,
|
|
{"RX flags", "radiotap.present.rxflags",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(RX_FLAGS),
|
|
"Specifies if the RX flags field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_hdrfcs,
|
|
{"FCS in header", "radiotap.present.fcs",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(RX_FLAGS),
|
|
"Specifies if the FCS field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_xchannel,
|
|
{"Channel+", "radiotap.present.xchannel",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(XCHANNEL),
|
|
"Specifies if the extended channel info field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_mcs,
|
|
{"MCS information", "radiotap.present.mcs",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(MCS),
|
|
"Specifies if the MCS field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_ampdu,
|
|
{"A-MPDU Status", "radiotap.present.ampdu",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(AMPDU_STATUS),
|
|
"Specifies if the A-MPDU status field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_vht,
|
|
{"VHT information", "radiotap.present.vht",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(VHT),
|
|
"Specifies if the VHT field is present", HFILL}},
|
|
|
|
{&hf_radiotap_present_reserved,
|
|
{"Reserved", "radiotap.present.reserved",
|
|
FT_UINT32, BASE_HEX, NULL, IEEE80211_RADIOTAP_NOTDEFINED,
|
|
"Not (yet) defined present flags (Must be zero)", HFILL}},
|
|
|
|
{&hf_radiotap_present_rtap_ns,
|
|
{"Radiotap NS next", "radiotap.present.rtap_ns",
|
|
FT_BOOLEAN, 32, NULL, RADIOTAP_MASK(RADIOTAP_NAMESPACE),
|
|
"Specifies a reset to the radiotap namespace", HFILL}},
|
|
|
|
{&hf_radiotap_present_vendor_ns,
|
|
{"Vendor NS next", "radiotap.present.vendor_ns",
|
|
FT_BOOLEAN, 32, NULL, RADIOTAP_MASK(VENDOR_NAMESPACE),
|
|
"Specifies that the next bitmap is in a vendor namespace", HFILL}},
|
|
|
|
{&hf_radiotap_present_ext,
|
|
{"Ext", "radiotap.present.ext",
|
|
FT_BOOLEAN, 32, TFS(&tfs_present_absent), RADIOTAP_MASK(EXT),
|
|
"Specifies if there are any extensions to the header present", HFILL}},
|
|
|
|
/* Boolean 'present.flags' flags */
|
|
{&hf_radiotap_flags,
|
|
{"Flags", "radiotap.flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}},
|
|
|
|
{&hf_radiotap_flags_cfp,
|
|
{"CFP", "radiotap.flags.cfp",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_CFP,
|
|
"Sent/Received during CFP", HFILL}},
|
|
|
|
{&hf_radiotap_flags_preamble,
|
|
{"Preamble", "radiotap.flags.preamble",
|
|
FT_BOOLEAN, 8, TFS(&preamble_type),
|
|
IEEE80211_RADIOTAP_F_SHORTPRE,
|
|
"Sent/Received with short preamble", HFILL}},
|
|
|
|
{&hf_radiotap_flags_wep,
|
|
{"WEP", "radiotap.flags.wep",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_WEP,
|
|
"Sent/Received with WEP encryption", HFILL}},
|
|
|
|
{&hf_radiotap_flags_frag,
|
|
{"Fragmentation", "radiotap.flags.frag",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_FRAG,
|
|
"Sent/Received with fragmentation", HFILL}},
|
|
|
|
{&hf_radiotap_flags_fcs,
|
|
{"FCS at end", "radiotap.flags.fcs",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_FCS,
|
|
"Frame includes FCS at end", HFILL}},
|
|
|
|
{&hf_radiotap_flags_datapad,
|
|
{"Data Pad", "radiotap.flags.datapad",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_DATAPAD,
|
|
"Frame has padding between 802.11 header and payload", HFILL}},
|
|
|
|
{&hf_radiotap_flags_badfcs,
|
|
{"Bad FCS", "radiotap.flags.badfcs",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_BADFCS,
|
|
"Frame received with bad FCS", HFILL}},
|
|
|
|
{&hf_radiotap_flags_shortgi,
|
|
{"Short GI", "radiotap.flags.shortgi",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_F_SHORTGI,
|
|
"Frame Sent/Received with HT short Guard Interval", HFILL}},
|
|
|
|
{&hf_radiotap_mactime,
|
|
{"MAC timestamp", "radiotap.mactime",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
"Value in microseconds of the MAC's Time Synchronization Function timer"
|
|
" when the first bit of the MPDU arrived at the MAC.",
|
|
HFILL}},
|
|
|
|
{&hf_radiotap_quality,
|
|
{"Signal Quality", "radiotap.quality",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Signal quality (unitless measure)", HFILL}},
|
|
|
|
{&hf_radiotap_fcs,
|
|
{"802.11 FCS", "radiotap.fcs",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
"Frame check sequence of this frame", HFILL}},
|
|
|
|
#if 0
|
|
{&hf_radiotap_channel,
|
|
{"Channel", "radiotap.channel",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"802.11 channel number that this frame was sent/received on", HFILL}},
|
|
#endif
|
|
|
|
{&hf_radiotap_channel_frequency,
|
|
{"Channel frequency", "radiotap.channel.freq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"Channel frequency in megahertz that this frame was sent/received on", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags,
|
|
{"Channel flags", "radiotap.channel.flags",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_turbo,
|
|
{"Turbo", "radiotap.channel.flags.turbo",
|
|
FT_BOOLEAN, 16, NULL, 0x0010, "Channel Flags Turbo", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_cck,
|
|
{"Complementary Code Keying (CCK)", "radiotap.channel.flags.cck",
|
|
FT_BOOLEAN, 16, NULL, 0x0020,
|
|
"Channel Flags Complementary Code Keying (CCK) Modulation", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_ofdm,
|
|
{"Orthogonal Frequency-Division Multiplexing (OFDM)", "radiotap.channel.flags.ofdm",
|
|
FT_BOOLEAN, 16, NULL, 0x0040,
|
|
"Channel Flags Orthogonal Frequency-Division Multiplexing (OFDM)", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_2ghz,
|
|
{"2 GHz spectrum", "radiotap.channel.flags.2ghz",
|
|
FT_BOOLEAN, 16, NULL, 0x0080, "Channel Flags 2 GHz spectrum", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_5ghz,
|
|
{"5 GHz spectrum", "radiotap.channel.flags.5ghz",
|
|
FT_BOOLEAN, 16, NULL, 0x0100, "Channel Flags 5 GHz spectrum", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_passive,
|
|
{"Passive", "radiotap.channel.flags.passive",
|
|
FT_BOOLEAN, 16, NULL, 0x0200,
|
|
"Channel Flags Passive", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_dynamic,
|
|
{"Dynamic CCK-OFDM", "radiotap.channel.flags.dynamic",
|
|
FT_BOOLEAN, 16, NULL, 0x0400,
|
|
"Channel Flags Dynamic CCK-OFDM Channel", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_gfsk,
|
|
{"Gaussian Frequency Shift Keying (GFSK)", "radiotap.channel.flags.gfsk",
|
|
FT_BOOLEAN, 16, NULL, 0x0800,
|
|
"Channel Flags Gaussian Frequency Shift Keying (GFSK) Modulation", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_gsm,
|
|
{"GSM (900MHz)", "radiotap.channel.flags.gsm",
|
|
FT_BOOLEAN, 16, NULL, 0x1000,
|
|
"Channel Flags GSM", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_sturbo,
|
|
{"Static Turbo", "radiotap.channel.flags.sturbo",
|
|
FT_BOOLEAN, 16, NULL, 0x2000,
|
|
"Channel Flags Status Turbo", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_half,
|
|
{"Half Rate Channel (10MHz Channel Width)", "radiotap.channel.flags.half",
|
|
FT_BOOLEAN, 16, NULL, 0x4000,
|
|
"Channel Flags Half Rate", HFILL}},
|
|
|
|
{&hf_radiotap_channel_flags_quarter,
|
|
{"Quarter Rate Channel (5MHz Channel Width)", "radiotap.channel.flags.quarter",
|
|
FT_BOOLEAN, 16, NULL, 0x8000,
|
|
"Channel Flags Quarter Rate", HFILL}},
|
|
|
|
{&hf_radiotap_rxflags,
|
|
{"RX flags", "radiotap.rxflags",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_rxflags_badplcp,
|
|
{"Bad PLCP", "radiotap.rxflags.badplcp",
|
|
FT_BOOLEAN, 24, NULL, IEEE80211_RADIOTAP_F_RX_BADPLCP,
|
|
"Frame with bad PLCP", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_channel,
|
|
{"Channel number", "radiotap.xchannel.channel",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_frequency,
|
|
{"Channel frequency", "radiotap.xchannel.freq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags,
|
|
{"Channel flags", "radiotap.xchannel.flags",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_turbo,
|
|
{"Turbo", "radiotap.xchannel.flags.turbo",
|
|
FT_BOOLEAN, 24, NULL, 0x0010,
|
|
"Channel Flags Turbo", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_cck,
|
|
{"Complementary Code Keying (CCK)", "radiotap.xchannel.flags.cck",
|
|
FT_BOOLEAN, 24, NULL, 0x0020,
|
|
"Channel Flags Complementary Code Keying (CCK) Modulation", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_ofdm,
|
|
{"Orthogonal Frequency-Division Multiplexing (OFDM)", "radiotap.xchannel.flags.ofdm",
|
|
FT_BOOLEAN, 24, NULL, 0x0040,
|
|
"Channel Flags Orthogonal Frequency-Division Multiplexing (OFDM)", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_2ghz,
|
|
{"2 GHz spectrum", "radiotap.xchannel.flags.2ghz",
|
|
FT_BOOLEAN, 24, NULL, 0x0080,
|
|
"Channel Flags 2 GHz spectrum", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_5ghz,
|
|
{"5 GHz spectrum", "radiotap.xchannel.flags.5ghz",
|
|
FT_BOOLEAN, 24, NULL, 0x0100,
|
|
"Channel Flags 5 GHz spectrum", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_passive,
|
|
{"Passive", "radiotap.channel.xtype.passive",
|
|
FT_BOOLEAN, 24, NULL, 0x0200,
|
|
"Channel Flags Passive", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_dynamic,
|
|
{"Dynamic CCK-OFDM", "radiotap.xchannel.flags.dynamic",
|
|
FT_BOOLEAN, 24, NULL, 0x0400,
|
|
"Channel Flags Dynamic CCK-OFDM Channel", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_gfsk,
|
|
{"Gaussian Frequency Shift Keying (GFSK)",
|
|
"radiotap.xchannel.flags.gfsk",
|
|
FT_BOOLEAN, 24, NULL, 0x0800,
|
|
"Channel Flags Gaussian Frequency Shift Keying (GFSK) Modulation",
|
|
HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_gsm,
|
|
{"GSM (900MHz)", "radiotap.xchannel.flags.gsm",
|
|
FT_BOOLEAN, 24, NULL, 0x1000,
|
|
"Channel Flags GSM", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_sturbo,
|
|
{"Static Turbo", "radiotap.xchannel.flags.sturbo",
|
|
FT_BOOLEAN, 24, NULL, 0x2000,
|
|
"Channel Flags Status Turbo", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_half,
|
|
{"Half Rate Channel (10MHz Channel Width)", "radiotap.xchannel.flags.half",
|
|
FT_BOOLEAN, 24, NULL, 0x4000,
|
|
"Channel Flags Half Rate", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_quarter,
|
|
{"Quarter Rate Channel (5MHz Channel Width)", "radiotap.xchannel.flags.quarter",
|
|
FT_BOOLEAN, 24, NULL, 0x8000,
|
|
"Channel Flags Quarter Rate", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_ht20,
|
|
{"HT Channel (20MHz Channel Width)", "radiotap.xchannel.flags.ht20",
|
|
FT_BOOLEAN, 24, NULL, 0x10000,
|
|
"Channel Flags HT/20", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_ht40u,
|
|
{"HT Channel (40MHz Channel Width with Extension channel above)", "radiotap.xchannel.flags.ht40u",
|
|
FT_BOOLEAN, 24, NULL, 0x20000,
|
|
"Channel Flags HT/40+", HFILL}},
|
|
|
|
{&hf_radiotap_xchannel_flags_ht40d,
|
|
{"HT Channel (40MHz Channel Width with Extension channel below)", "radiotap.xchannel.flags.ht40d",
|
|
FT_BOOLEAN, 24, NULL, 0x40000,
|
|
"Channel Flags HT/40-", HFILL}},
|
|
#if 0
|
|
{&hf_radiotap_xchannel_maxpower,
|
|
{"Max transmit power", "radiotap.xchannel.maxpower",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
#endif
|
|
{&hf_radiotap_fhss_hopset,
|
|
{"FHSS Hop Set", "radiotap.fhss.hopset",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Frequency Hopping Spread Spectrum hopset", HFILL}},
|
|
|
|
{&hf_radiotap_fhss_pattern,
|
|
{"FHSS Pattern", "radiotap.fhss.pattern",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Frequency Hopping Spread Spectrum hop pattern", HFILL}},
|
|
|
|
{&hf_radiotap_datarate,
|
|
{"Data rate (Mb/s)", "radiotap.datarate",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x0,
|
|
"Speed this frame was sent/received at", HFILL}},
|
|
|
|
{&hf_radiotap_antenna,
|
|
{"Antenna", "radiotap.antenna",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"Antenna number this frame was sent/received over (starting at 0)", HFILL}},
|
|
|
|
{&hf_radiotap_dbm_antsignal,
|
|
{"SSI Signal", "radiotap.dbm_antsignal",
|
|
FT_INT32, BASE_DEC, NULL, 0x0,
|
|
"RF signal power at the antenna from a fixed,"
|
|
" arbitrary value in decibels from one milliwatt", HFILL}},
|
|
|
|
{&hf_radiotap_db_antsignal,
|
|
{"SSI Signal", "radiotap.db_antsignal",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"RF signal power at the antenna from a fixed, arbitrary value in decibels", HFILL}},
|
|
|
|
{&hf_radiotap_dbm_antnoise,
|
|
{"SSI Noise", "radiotap.dbm_antnoise",
|
|
FT_INT32, BASE_DEC, NULL, 0x0,
|
|
"RF noise power at the antenna from a fixed, arbitrary value"
|
|
" in decibels per one milliwatt", HFILL}},
|
|
|
|
{&hf_radiotap_db_antnoise,
|
|
{"SSI Noise", "radiotap.db_antnoise",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"RF noise power at the antenna from a fixed, arbitrary value"
|
|
" in decibels", HFILL}},
|
|
|
|
{&hf_radiotap_tx_attenuation,
|
|
{"Transmit attenuation", "radiotap.txattenuation",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Transmit power expressed as unitless distance from max power"
|
|
" set at factory (0 is max power)", HFILL}},
|
|
|
|
{&hf_radiotap_db_tx_attenuation,
|
|
{"Transmit attenuation (dB)", "radiotap.db_txattenuation",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Transmit power expressed as decibels from max power"
|
|
" set at factory (0 is max power)", HFILL}},
|
|
|
|
{&hf_radiotap_txpower,
|
|
{"Transmit power", "radiotap.txpower",
|
|
FT_INT32, BASE_DEC, NULL, 0x0,
|
|
"Transmit power in decibels per one milliwatt (dBm)", HFILL}},
|
|
|
|
{&hf_radiotap_mcs,
|
|
{"MCS information", "radiotap.mcs",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_mcs_known,
|
|
{"Known MCS information", "radiotap.mcs.known",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"Bit mask indicating what MCS information is present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_bw,
|
|
{"Bandwidth", "radiotap.mcs.have_bw",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_BW,
|
|
"Bandwidth information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_index,
|
|
{"MCS index", "radiotap.mcs.have_index",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_MCS,
|
|
"MCS index information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_gi,
|
|
{"Guard interval", "radiotap.mcs.have_gi",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_GI,
|
|
"Sent/Received guard interval information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_format,
|
|
{"Format", "radiotap.mcs.have_format",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_FMT,
|
|
"Format information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_fec,
|
|
{"FEC type", "radiotap.mcs.have_fec",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_FEC,
|
|
"Forward error correction type information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_stbc,
|
|
{"STBC streams", "radiotap.mcs.have_stbc",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_STBC,
|
|
"Space Time Block Coding streams information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_have_ness,
|
|
{"Number of extension spatial streams", "radiotap.mcs.have_ness",
|
|
FT_BOOLEAN, 8, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_MCS_HAVE_NESS,
|
|
"Number of extension spatial streams information present", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_ness_bit1,
|
|
{"Number of extension spatial streams bit 1", "radiotap.mcs.ness_bit1",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_MCS_NESS_BIT1,
|
|
"Bit 1 of number of extension spatial streams information", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_bw,
|
|
{"Bandwidth", "radiotap.mcs.bw",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_bandwidth),
|
|
IEEE80211_RADIOTAP_MCS_BW_MASK, NULL, HFILL}},
|
|
|
|
{&hf_radiotap_mcs_gi,
|
|
{"Guard interval", "radiotap.mcs.gi",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_gi), IEEE80211_RADIOTAP_MCS_SGI,
|
|
"Sent/Received guard interval", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_format,
|
|
{"Format", "radiotap.mcs.format",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_format), IEEE80211_RADIOTAP_MCS_FMT_GF,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_mcs_fec,
|
|
{"FEC type", "radiotap.mcs.fec",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_fec), IEEE80211_RADIOTAP_MCS_FEC_LDPC,
|
|
"Forward error correction type", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_stbc,
|
|
{"STBC streams", "radiotap.mcs.stbc",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_MCS_STBC_MASK,
|
|
"Number of Space Time Block Code streams", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_ness_bit0,
|
|
{"Number of extension spatial streams bit 0", "radiotap.mcs.ness_bit1",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_MCS_NESS_BIT1,
|
|
"Bit 0 of number of extension spatial streams information", HFILL}},
|
|
|
|
{&hf_radiotap_mcs_index,
|
|
{"MCS index", "radiotap.mcs.index",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu,
|
|
{"A-MPDU status", "radiotap.ampdu",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_ref,
|
|
{"A-MPDU reference number", "radiotap.ampdu.reference",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_flags,
|
|
{"A-MPDU flags", "radiotap.ampdu.flags",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
"A-MPDU status flags", HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_flags_report_zerolen,
|
|
{"Driver reports 0-length subframes in this A-MPDU", "radiotap.ampdu.flags.report_zerolen",
|
|
FT_BOOLEAN, 16, NULL, IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_flags_is_zerolen,
|
|
{"This is a 0-length subframe", "radiotap.ampdu.flags.is_zerolen",
|
|
FT_BOOLEAN, 16, NULL, IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_flags_last_known,
|
|
{"Last subframe of this A-MPDU is known", "radiotap.ampdu.flags.lastknown",
|
|
FT_BOOLEAN, 16, NULL, IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_flags_is_last,
|
|
{"This is the last subframe of this A-MPDU", "radiotap.ampdu.flags.last",
|
|
FT_BOOLEAN, 16, NULL, IEEE80211_RADIOTAP_AMPDU_IS_LAST,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_flags_delim_crc_error,
|
|
{"Delimiter CRC error on this subframe", "radiotap.ampdu.flags.delim_crc_error",
|
|
FT_BOOLEAN, 16, NULL, IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ampdu_delim_crc,
|
|
{"A-MPDU subframe delimiter CRC", "radiotap.ampdu.delim_crc",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht,
|
|
{"VHT information", "radiotap.vht",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_known,
|
|
{"Known VHT information", "radiotap.vht.known",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"Bit mask indicating what VHT information is present", HFILL}},
|
|
|
|
{&hf_radiotap_vht_user,
|
|
{"User", "radiotap.vht.user",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_stbc,
|
|
{"STBC", "radiotap.vht.have_stbc",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_STBC,
|
|
"Space Time Block Coding information present", HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_txop_ps,
|
|
{"TXOP_PS_NOT_ALLOWED", "radiotap.vht.have_txop_ps",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_TXOP_PS,
|
|
"TXOP_PS_NOT_ALLOWED information present", HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_gi,
|
|
{"Guard interval", "radiotap.vht.have_gi",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_GI,
|
|
"Short/Long guard interval information present", HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_sgi_nsym_da,
|
|
{"SGI Nsym disambiguation", "radiotap.vht.have_sgi_nsym_da",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_SGI_NSYM_DA,
|
|
"Short guard interval Nsym disambiguation information present", HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_ldpc_extra,
|
|
{"LDPC extra OFDM symbol", "radiotap.vht.ldpc_extra",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_LDPC_EXTRA,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_bf,
|
|
{"Beamformed", "radiotap.vht.have_beamformed",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_BF,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_bw,
|
|
{"Bandwidth", "radiotap.mcs.have_bw",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_BW,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_gid,
|
|
{"Group ID", "radiotap.mcs.have_gid",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_GID,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_have_p_aid,
|
|
{"Partial AID", "radiotap.mcs.have_paid",
|
|
FT_BOOLEAN, 16, TFS(&tfs_present_absent), IEEE80211_RADIOTAP_VHT_HAVE_PAID,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_stbc,
|
|
{"STBC", "radiotap.vht.stbc",
|
|
FT_BOOLEAN, 8, TFS(&tfs_on_off), IEEE80211_RADIOTAP_VHT_STBC,
|
|
"Space Time Block Coding flag", HFILL}},
|
|
|
|
{&hf_radiotap_vht_txop_ps,
|
|
{"TXOP_PS_NOT_ALLOWED", "radiotap.vht.txop_ps",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_VHT_TXOP_PS,
|
|
"Flag indicating whether STAs may doze during TXOP", HFILL}},
|
|
|
|
{&hf_radiotap_vht_gi,
|
|
{"Guard interval", "radiotap.vht.gi",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_gi), IEEE80211_RADIOTAP_VHT_SGI,
|
|
"Short/Long guard interval", HFILL}},
|
|
|
|
{&hf_radiotap_vht_sgi_nsym_da,
|
|
{"SGI Nsym disambiguation", "radiotap.vht.sgi_nsym_da",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_VHT_SGI_NSYM_DA,
|
|
"Short Guard Interval Nsym disambiguation", HFILL}},
|
|
|
|
{&hf_radiotap_vht_ldpc_extra,
|
|
{"LDPC extra OFDM symbol", "radiotap.vht.ldpc_extra",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_VHT_LDPC_EXTRA,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_bf,
|
|
{"Beamformed", "radiotap.vht.beamformed",
|
|
FT_BOOLEAN, 8, NULL, IEEE80211_RADIOTAP_VHT_BF,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_bw,
|
|
{"Bandwidth", "radiotap.vht.bw",
|
|
FT_UINT8, BASE_DEC | BASE_EXT_STRING, &vht_bandwidth_ext, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_nsts[0],
|
|
{"Space-time streams 0", "radiotap.vht.nsts.0",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Number of Space-time streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nsts[1],
|
|
{"Space-time streams 1", "radiotap.vht.nsts.1",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Number of Space-time streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nsts[2],
|
|
{"Space-time streams 2", "radiotap.vht.nsts.2",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Number of Space-time streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nsts[3],
|
|
{"Space-time streams 3", "radiotap.vht.nsts.3",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Number of Space-time streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_mcs[0],
|
|
{"MCS index 0", "radiotap.vht.mcs.0",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_MCS,
|
|
"MCS index", HFILL}},
|
|
|
|
{&hf_radiotap_vht_mcs[1],
|
|
{"MCS index 1", "radiotap.vht.mcs.1",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_MCS,
|
|
"MCS index", HFILL}},
|
|
|
|
{&hf_radiotap_vht_mcs[2],
|
|
{"MCS index 2", "radiotap.vht.mcs.2",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_MCS,
|
|
"MCS index", HFILL}},
|
|
|
|
{&hf_radiotap_vht_mcs[3],
|
|
{"MCS index 3", "radiotap.vht.mcs.3",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_MCS,
|
|
"MCS index", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nss[0],
|
|
{"Spatial streams 0", "radiotap.vht.nss.0",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_NSS,
|
|
"Number of spatial streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nss[1],
|
|
{"Spatial streams 1", "radiotap.vht.nss.1",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_NSS,
|
|
"Number of spatial streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nss[2],
|
|
{"Spatial streams 2", "radiotap.vht.nss.2",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_NSS,
|
|
"Number of spatial streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_nss[3],
|
|
{"Spatial streams 3", "radiotap.vht.nss.3",
|
|
FT_UINT8, BASE_DEC, NULL, IEEE80211_RADIOTAP_VHT_NSS,
|
|
"Number of spatial streams", HFILL}},
|
|
|
|
{&hf_radiotap_vht_coding[0],
|
|
{"Coding 0", "radiotap.vht.coding.0",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_fec), 0x0,
|
|
"Coding", HFILL}},
|
|
|
|
{&hf_radiotap_vht_coding[1],
|
|
{"Coding 1", "radiotap.vht.coding.1",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_fec), 0x0,
|
|
"Coding", HFILL}},
|
|
|
|
{&hf_radiotap_vht_coding[2],
|
|
{"Coding 2", "radiotap.vht.coding.2",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_fec), 0x0,
|
|
"Coding", HFILL}},
|
|
|
|
{&hf_radiotap_vht_coding[3],
|
|
{"Coding 3", "radiotap.vht.coding.3",
|
|
FT_UINT8, BASE_DEC, VALS(mcs_fec), 0x0,
|
|
"Coding", HFILL}},
|
|
|
|
{&hf_radiotap_vht_datarate[0],
|
|
{"Data rate (Mb/s) 0", "radiotap.vht.datarate.0",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x0,
|
|
"Speed this frame was sent/received at", HFILL}},
|
|
|
|
{&hf_radiotap_vht_datarate[1],
|
|
{"Data rate (Mb/s) 1", "radiotap.vht.datarate.1",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x0,
|
|
"Speed this frame was sent/received at", HFILL}},
|
|
|
|
{&hf_radiotap_vht_datarate[2],
|
|
{"Data rate (Mb/s) 2", "radiotap.vht.datarate.2",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x0,
|
|
"Speed this frame was sent/received at", HFILL}},
|
|
|
|
{&hf_radiotap_vht_datarate[3],
|
|
{"Data rate (Mb/s) 3", "radiotap.vht.datarate.3",
|
|
FT_FLOAT, BASE_NONE, NULL, 0x0,
|
|
"Speed this frame was sent/received at", HFILL}},
|
|
|
|
{&hf_radiotap_vht_gid,
|
|
{"Group Id", "radiotap.vht.gid",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vht_p_aid,
|
|
{"Partial AID", "radiotap.vht.paid",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_vendor_ns,
|
|
{"Vendor namespace", "radiotap.vendor_namespace",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ven_oui,
|
|
{"Vendor OUI", "radiotap.vendor_oui",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{&hf_radiotap_ven_subns,
|
|
{"Vendor sub namespace", "radiotap.vendor_subns",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Vendor-specified sub namespace", HFILL}},
|
|
|
|
{&hf_radiotap_ven_skip,
|
|
{"Vendor data length", "radiotap.vendor_data_len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Length of vendor-specified data", HFILL}},
|
|
|
|
{&hf_radiotap_ven_data,
|
|
{"Vendor data", "radiotap.vendor_data",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"Vendor-specified data", HFILL}},
|
|
|
|
/* Special variables */
|
|
{&hf_radiotap_fcs_bad,
|
|
{"Bad FCS", "radiotap.fcs_bad",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"Specifies if this frame has a bad frame check sequence", HFILL}},
|
|
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_radiotap,
|
|
&ett_radiotap_present,
|
|
&ett_radiotap_flags,
|
|
&ett_radiotap_rxflags,
|
|
&ett_radiotap_channel_flags,
|
|
&ett_radiotap_xchannel_flags,
|
|
&ett_radiotap_vendor,
|
|
&ett_radiotap_mcs,
|
|
&ett_radiotap_mcs_known,
|
|
&ett_radiotap_ampdu,
|
|
&ett_radiotap_ampdu_flags,
|
|
&ett_radiotap_vht,
|
|
&ett_radiotap_vht_known,
|
|
&ett_radiotap_vht_user
|
|
};
|
|
static ei_register_info ei[] = {
|
|
{ &ei_radiotap_present, { "radiotap.present.radiotap_and_vendor", PI_MALFORMED, PI_ERROR, "Both radiotap and vendor namespace specified in bitmask word", EXPFILL }},
|
|
{ &ei_radiotap_present_reserved, { "radiotap.present.reserved.unknown", PI_UNDECODED, PI_NOTE, "Unknown Radiotap fields, code not implemented, Please check radiotap documentation, Contact Wireshark developers if you want this supported", EXPFILL }},
|
|
{ &ei_radiotap_data_past_header, { "radiotap.data_past_header", PI_MALFORMED, PI_ERROR, "Radiotap data goes past the end of the radiotap header", EXPFILL }},
|
|
};
|
|
|
|
module_t *radiotap_module;
|
|
expert_module_t* expert_radiotap;
|
|
|
|
proto_radiotap =
|
|
proto_register_protocol("IEEE 802.11 Radiotap Capture header", "802.11 Radiotap", "radiotap");
|
|
proto_register_field_array(proto_radiotap, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_radiotap = expert_register_protocol(proto_radiotap);
|
|
expert_register_field_array(expert_radiotap, ei, array_length(ei));
|
|
register_dissector("radiotap", dissect_radiotap, proto_radiotap);
|
|
|
|
radiotap_tap = register_tap("radiotap");
|
|
|
|
radiotap_module = prefs_register_protocol(proto_radiotap, NULL);
|
|
prefs_register_bool_preference(radiotap_module, "bit14_fcs_in_header",
|
|
"Assume bit 14 means FCS in header",
|
|
"Radiotap has a bit to indicate whether the FCS is still on the frame or not. "
|
|
"Some generators (e.g. AirPcap) use a non-standard radiotap flag 14 to put "
|
|
"the FCS into the header.",
|
|
&radiotap_bit14_fcs);
|
|
|
|
prefs_register_bool_preference(radiotap_module, "interpret_high_rates_as_mcs",
|
|
"Interpret high rates as MCS",
|
|
"Some generators use rates with bit 7 set to indicate an MCS, e.g. BSD. "
|
|
"others (Linux, AirPcap) do not.",
|
|
&radiotap_interpret_high_rates_as_mcs);
|
|
}
|
|
|
|
void proto_reg_handoff_radiotap(void)
|
|
{
|
|
dissector_handle_t radiotap_handle;
|
|
|
|
/* handle for 802.11+radio information dissector */
|
|
ieee80211_radio_handle = find_dissector("wlan_radio");
|
|
|
|
radiotap_handle = find_dissector("radiotap");
|
|
|
|
dissector_add_uint("wtap_encap", WTAP_ENCAP_IEEE_802_11_RADIOTAP,
|
|
radiotap_handle);
|
|
|
|
register_capture_dissector("wtap_encap", WTAP_ENCAP_IEEE_802_11_RADIOTAP, capture_radiotap, proto_radiotap);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* tab-width: 8
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
|
|
* :indentSize=8:tabSize=8:noTabs=false:
|
|
*/
|