radiotap_iter.h

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#ifndef __RADIOTAP_ITER_H
#define __RADIOTAP_ITER_H
 
#include "platform.h"
#include "radiotap.h"
#include <stdint.h>
 
/* Radiotap header iteration
 *   implemented in radiotap.c
 */
 
struct radiotap_override {
    uint8_t field;
    uint8_t align : 4, size : 4;
};
 
struct radiotap_align_size {
    uint8_t align : 4, size : 4;
};
 
struct ieee80211_radiotap_namespace {
    const struct radiotap_align_size *align_size;
    int n_bits;
    uint32_t oui;
    uint8_t subns;
};
 
struct ieee80211_radiotap_vendor_namespaces {
    const struct ieee80211_radiotap_namespace *ns;
    int n_ns;
};
 
struct ieee80211_radiotap_iterator {
    struct ieee80211_radiotap_header *_rtheader;
    const struct ieee80211_radiotap_vendor_namespaces *_vns;
    const struct ieee80211_radiotap_namespace *current_namespace;
 
    unsigned char *_arg, *_next_ns_data;
    uint32_t *_next_bitmap;
 
    unsigned char *this_arg;
    const struct radiotap_override *overrides; /* Only for RADIOTAP_SUPPORT_OVERRIDES */
    int n_overrides;                           /* Only for RADIOTAP_SUPPORT_OVERRIDES */
    int this_arg_index;
    int this_arg_size;
 
    int is_radiotap_ns;
 
    int _max_length;
    int _arg_index;
    uint32_t _bitmap_shifter;
    int _reset_on_ext;
};
 
#ifdef __cplusplus
#define CALLING_CONVENTION "C"
#else
#define CALLING_CONVENTION
#endif
 
IMPORT extern CALLING_CONVENTION int
ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator,
                                 struct ieee80211_radiotap_header *radiotap_header, int max_length,
                                 const struct ieee80211_radiotap_vendor_namespaces *vns);
 
IMPORT extern CALLING_CONVENTION int
ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator);
 
#endif /* __RADIOTAP_ITER_H */