epan/dissectors/packet-ieee80211-radio.h

   1 /* packet-ieee80211-radio.h
   2  * Routines for pseudo 802.11 header dissection and radio packet timing calculation
   3  *
   4  * Wireshark - Network traffic analyzer
   5  * By Gerald Combs <gerald@wireshark.org>
   6  * Copyright 1998 Gerald Combs
   7  *
   8  * Copyright 2012 Parc Inc and Samsung Electronics
   9  * Copyright 2015, 2016 & 2017 Cisco Inc
  10  *
  11  * SPDX-License-Identifier: GPL-2.0-or-later
  12  */
  13
  14 #ifndef __WLAN_RADIO_H__
  15 #define __WLAN_RADIO_H__
  16
  17 #ifdef __cplusplus
  18 extern "C" {
  19 #endif /* __cplusplus */
  20
  21 struct aggregate {
  22   unsigned phy;
  23   union ieee_802_11_phy_info phy_info;
  24   int8_t rssi; /* sometimes only available on the last frame */
  25   unsigned duration; /* total duration of data in microseconds (without preamble) */
  26 };
  27
  28 struct wlan_radio {
  29   struct aggregate *aggregate; /* if this frame is part of an aggregate, point to it, otherwise NULL */
  30   unsigned prior_aggregate_data; /* length of all prior data in this aggregate
  31                                  used for calculating duration of this subframe */
  32   uint64_t start_tsf;
  33   uint64_t end_tsf;
  34
  35   int64_t ifs; /* inter frame space in microseconds */
  36
  37   uint16_t nav; /* Duration from the frame header */
  38   int8_t rssi;
  39 };
  40
  41 #ifdef __cplusplus
  42 }
  43 #endif /* __cplusplus */
  44
  45 #endif /* __WLAN_RADIO_H__ */