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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
#ifndef __RADIOTAP_ITER_H
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#define __RADIOTAP_ITER_H
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#include "radiotap.h"
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/* Radiotap header iteration
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* implemented in radiotap.c
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*/
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/**
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* struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
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* @rtheader: pointer to the radiotap header we are walking through
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* @max_length: length of radiotap header in cpu byte ordering
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* @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
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* @this_arg: pointer to current radiotap arg
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* @arg_index: internal next argument index
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* @arg: internal next argument pointer
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* @next_bitmap: internal pointer to next present u32
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* @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
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*/
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struct ieee80211_radiotap_iterator {
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struct ieee80211_radiotap_header *rtheader;
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int max_length;
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int this_arg_index;
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unsigned char *this_arg;
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int arg_index;
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unsigned char *arg;
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uint32_t *next_bitmap;
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uint32_t bitmap_shifter;
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};
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extern int ieee80211_radiotap_iterator_init(
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struct ieee80211_radiotap_iterator *iterator,
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struct ieee80211_radiotap_header *radiotap_header,
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int max_length);
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extern int ieee80211_radiotap_iterator_next(
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struct ieee80211_radiotap_iterator *iterator);
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#endif /* __RADIOTAP_ITER_H */
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