1STRUCT IEEE80211_RAD(9)        Utility functions       STRUCT IEEE80211_RAD(9)
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NAME

6       struct_ieee80211_radiotap_iterator - tracks walk thru present radiotap
7       args
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SYNOPSIS

10       struct ieee80211_radiotap_iterator {
11         struct ieee80211_radiotap_header * _rtheader;
12         const struct ieee80211_radiotap_vendor_namespaces * _vns;
13         const struct ieee80211_radiotap_namespace * current_namespace;
14         unsigned char * _arg;
15         unsigned char * _next_ns_data;
16         __le32 * _next_bitmap;
17         unsigned char * this_arg;
18         int this_arg_index;
19         int this_arg_size;
20         int is_radiotap_ns;
21         int _max_length;
22         int _arg_index;
23         uint32_t _bitmap_shifter;
24         int _reset_on_ext;
25       };
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MEMBERS

28       _rtheader
29           pointer to the radiotap header we are walking through
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31       _vns
32           vendor namespace definitions
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34       current_namespace
35           pointer to the current namespace definition (or internally NULL if
36           the current namespace is unknown)
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38       _arg
39           next argument pointer
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41       _next_ns_data
42           beginning of the next namespace's data
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44       _next_bitmap
45           internal pointer to next present u32
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47       this_arg
48           pointer to current radiotap arg; it is valid after each call to
49           ieee80211_radiotap_iterator_next but also after
50           ieee80211_radiotap_iterator_init where it will point to the
51           beginning of the actual data portion
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53       this_arg_index
54           index of current arg, valid after each successful call to
55           ieee80211_radiotap_iterator_next
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57       this_arg_size
58           length of the current arg, for convenience
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60       is_radiotap_ns
61           indicates whether the current namespace is the default radiotap
62           namespace or not
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64       _max_length
65           length of radiotap header in cpu byte ordering
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67       _arg_index
68           next argument index
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70       _bitmap_shifter
71           internal shifter for curr u32 bitmap, b0 set == arg present
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73       _reset_on_ext
74           internal; reset the arg index to 0 when going to the next bitmap
75           word
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DESCRIPTION

78       Describes the radiotap parser state. Fields prefixed with an underscore
79       must not be used by users of the parser, only by the parser internally.
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AUTHOR

82       Johannes Berg <johannes@sipsolutions.net>
83           Author.
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86Kernel Hackers Manual 3.10         June 2019           STRUCT IEEE80211_RAD(9)
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