blob: 2e0e87296ef57bf04b826159ea8b09990b2df900 [file] [log] [blame]
* Radiotap parser
* Copyright 2007 Andy Green <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
* Alternatively, this software may be distributed under the terms of BSD
* license.
* See README and COPYING for more details.
#include "radiotap.h"
/* Radiotap header iteration
* implemented in radiotap.c
* struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
* @rtheader: pointer to the radiotap header we are walking through
* @max_length: length of radiotap header in cpu byte ordering
* @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
* @this_arg: pointer to current radiotap arg
* @arg_index: internal next argument index
* @arg: internal next argument pointer
* @next_bitmap: internal pointer to next present u32
* @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
struct ieee80211_radiotap_iterator {
struct ieee80211_radiotap_header *rtheader;
int max_length;
int this_arg_index;
unsigned char *this_arg;
int arg_index;
unsigned char *arg;
uint32_t *next_bitmap;
uint32_t bitmap_shifter;
extern int ieee80211_radiotap_iterator_init(
struct ieee80211_radiotap_iterator *iterator,
struct ieee80211_radiotap_header *radiotap_header,
int max_length);
extern int ieee80211_radiotap_iterator_next(
struct ieee80211_radiotap_iterator *iterator);
#endif /* __RADIOTAP_ITER_H */