1 #ifndef __RADIOTAP_ITER_H 2 #define __RADIOTAP_ITER_H 3 4 #include "radiotap.h" 5 6 /* Radiotap header iteration 7 * implemented in radiotap.c 8 */ 9 /** 10 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 11 * @rtheader: pointer to the radiotap header we are walking through 12 * @max_length: length of radiotap header in cpu byte ordering 13 * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg 14 * @this_arg: pointer to current radiotap arg 15 * @arg_index: internal next argument index 16 * @arg: internal next argument pointer 17 * @next_bitmap: internal pointer to next present u32 18 * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 19 */ 20 21 struct ieee80211_radiotap_iterator { 22 struct ieee80211_radiotap_header *rtheader; 23 int max_length; 24 int this_arg_index; 25 unsigned char *this_arg; 26 27 int arg_index; 28 unsigned char *arg; 29 uint32_t *next_bitmap; 30 uint32_t bitmap_shifter; 31 }; 32 33 extern int ieee80211_radiotap_iterator_init( 34 struct ieee80211_radiotap_iterator *iterator, 35 struct ieee80211_radiotap_header *radiotap_header, 36 int max_length); 37 38 extern int ieee80211_radiotap_iterator_next( 39 struct ieee80211_radiotap_iterator *iterator); 40 41 #endif /* __RADIOTAP_ITER_H */ 42
