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ieee80211: fix preamble duration calculation 

Preamble duration calculation duplicated the number of HT-LTF symbols
resulting in an incorrect preamble calculation. This fix removes the
duplicated code in file: epan/dissectors/packet-ieee80211-radio.c.

Bug: 14439
Change-Id: I550066a41c24948e16da6a43cf403cf206b7f32d
Reviewed-on: https://code.wireshark.org/review/25903
Reviewed-by: Simon Barber <simon.barber@meraki.net>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
This commit is contained in:
Neil Ostroff 2018-02-19 12:26:48 -08:00 committed by Michael Mann
parent 647e5b449a
commit fa1635f5b0
1 changed files with 0 additions and 5 deletions
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5
epan/dissectors/packet-ieee80211-radio.c
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@ -1047,11 +1047,6 @@ dissect_wlan_radio_phdr (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree,
assumed_no_extension_streams = TRUE;
}
/* calculate number of HT-LTF training symbols.
* see ieee80211n-2009 20.3.9.4.6 table 20-11 */
Nsts = ieee80211_ht_streams[info_n->mcs_index] + stbc_streams;
preamble += 4 * (Nhtdltf[Nsts-1] + Nhteltf[ness]);
if (!info_n->has_fec) {
assumed_bcc_fec = TRUE;
}