bacb984b2d
Update the radiotap parser to the latest version of the http://git.sipsolutions.net/radiotap.git/ library to get parsing for vendor namespaces. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
#ifndef __RADIOTAP_ITER_H
|
|
#define __RADIOTAP_ITER_H
|
|
|
|
#include <stdint.h>
|
|
#include "radiotap.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 - tracks walk thru present radiotap args
|
|
* @this_arg_index: index of current arg, valid after each successful call
|
|
* to ieee80211_radiotap_iterator_next()
|
|
* @this_arg: pointer to current radiotap arg; it is valid after each
|
|
* call to ieee80211_radiotap_iterator_next() but also after
|
|
* ieee80211_radiotap_iterator_init() where it will point to
|
|
* the beginning of the actual data portion
|
|
* @this_arg_size: length of the current arg, for convenience
|
|
* @current_namespace: pointer to the current namespace definition
|
|
* (or internally %NULL if the current namespace is unknown)
|
|
* @is_radiotap_ns: indicates whether the current namespace is the default
|
|
* radiotap namespace or not
|
|
*
|
|
* @overrides: override standard radiotap fields
|
|
* @n_overrides: number of overrides
|
|
*
|
|
* @_rtheader: pointer to the radiotap header we are walking through
|
|
* @_max_length: length of radiotap header in cpu byte ordering
|
|
* @_arg_index: next argument index
|
|
* @_arg: next argument pointer
|
|
* @_next_bitmap: internal pointer to next present u32
|
|
* @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
|
|
* @_vns: vendor namespace definitions
|
|
* @_next_ns_data: beginning of the next namespace's data
|
|
* @_reset_on_ext: internal; reset the arg index to 0 when going to the
|
|
* next bitmap word
|
|
*
|
|
* Describes the radiotap parser state. Fields prefixed with an underscore
|
|
* must not be used by users of the parser, only by the parser internally.
|
|
*/
|
|
|
|
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;
|
|
#ifdef RADIOTAP_SUPPORT_OVERRIDES
|
|
const struct radiotap_override *overrides;
|
|
int n_overrides;
|
|
#endif
|
|
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;
|
|
};
|
|
|
|
extern 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);
|
|
|
|
extern int ieee80211_radiotap_iterator_next(
|
|
struct ieee80211_radiotap_iterator *iterator);
|
|
|
|
#endif /* __RADIOTAP_ITER_H */
|